Some standard content:
GB/T17694—1999
Geographic information technology constitutes the technical foundation for the research and development of geographic information science, which involves geographic information reference model, geographic information concept model language, geographic information consistency and testing, geographic information service, geographic data management, geographic data model and operation, etc. Among these contents, concepts and terms are one of the main objects of geographic information standardization work at present. The formulation of corresponding standards will provide a useful foundation for people to unify concepts, establish a common standardized language, and promote the mutual exchange and development of geographic information technology. This standard is formulated with reference to the relevant contents of the geographic information series standards being developed by the International Organization for Standardization Technical Committee for Geographic Information/Earth Information Industry (ISO/TC211). It includes basic terms in geographic information technology and follows the following principles in the scope of word selection and term definition: generally, terms that have been basically uniformly defined internationally are selected; for terms that have not yet been uniformly defined internationally but have not much difference in definition, a definition is selected as appropriate; for terms that have not yet been uniformly defined internationally but are helpful in understanding the relevant technical content, their different definitions are listed; for terms that have large differences in definition internationally, they are not selected for the time being; instrument names, terms that are too biased towards the mathematical field, and terms that are unique to specific application products or software are not included in this standard. The terms in this standard are arranged in alphabetical order. Appendix A gives the English index. Appendix A of this standard is the appendix of the standard.
This standard is proposed by the China Institute of Standardization and Information Classification and Coding. This standard is under the jurisdiction of the National Technical Committee for Geographic Information Standardization. The drafting unit of this standard: China Institute of Standardization and Information Classification and Coding. The drafters of this standard: Li Xiaolin, Xie Min, Li Jing. 441
1 Scope
National Standard of the People's Republic of China
Basic terms of geographic information technology
Basic terms of geographic information technology This standard specifies the basic terms and definitions within the scope of geographic information technology. GB/T 17694—1999
This standard applies to the formulation of standards related to geographic information, the preparation of technical documents, and related system development, testing, and evaluation. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions recommended by the following standards. GB/T14911—1994 Basic terminology for surveying and mapping
GB/T16656.31-1997 Industrial automation systems and integrated product data representation and exchange Part 31: Conformance testing methodology and framework: Basic concepts (idtISO10303-31:1994) 3 Terminology
3.1 Reporting group
Data (3.132) that have common characteristics and belong to a subset (3.219) of a data set (3.134). NOTE
Common characteristics may include: belonging to the same identified feature type (3.180), feature tonality (3.181) or feature relationship (3.179); sharing data collection criteria; sharing original sources, or existing within a specified time or geographical range. 2 A reporting group can be as small as a feature instance (3.116), a topic value (3.131) or a single feature relationship. 3.2 Implementation Under Test IUT
Implementation Under Test
The part of a product that is studied under conformance testing (3.186). NOTE An implementation under test should be an implementation (3.122) of one or more elements (3.174) of some standard(s), based on a specified implementation approach. 3.3 System Under Test SUT
System Under Test
The computer hardware, software, and communications network required to support the implementation under test (3.2). 3.4 Population
The things that are analyzed.
NOTE Examples of things that are analyzed: Are all polygons closed? " "Do all roads nominally have one entrance? 3.5 edge
one-dimensional topological element (3.159).
3.6 boundary
closed non-self-intersecting curve (3.101) or a set of curves that bounds a surface (3.12). 3.7 encoding
approved by the State Administration of Quality and Technical Supervision on March 8, 1999 442
implemented on September 1, 1999
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the conversion of data (3.132) into a series of codes (3.36). 3.8 encoding rule
an identifiable set of rules. It is used to convert information instances (3.116) in a data structure (3.138) into data (3.132) instances (3.36). 7) process.
Note: Encoding rules specify the syntax, codes (3.36) and encapsulation used to generate data structures. 3.9 identifier identifier
A mark used to uniquely identify an item (3.168) or a group of items. For example: a unique reference number. 3.10 standard interval standard interval A reference to a length of time on an interval time scale (3.73), usually one of the formal units specified by ISO 31-1.
3. 11 table
a normal arrangement of data (3.132), especially one in which the data are arranged in rows and columns of a rectangle. 3.12 surface
1. a bounded two-dimensional geometric element (3.71) whose interior is connected by a path. Note 1 to entry: A path-connected surface is one in which any two points on the surface can be connected by a curve (3.101) that lies within the surface. 2. a bounded, continuous, 2.5-dimensional representation of a topographic surface. The topographic surface consists of a number of connected regions (3.100). 3.13 uncertainty
a parameter of a measurement result that indicates the tendency of a measurement value to deviate from the mean and thus the precision of the correctness of the measurement result by the tendency of the deviation from the mean.
Note 1 to entry: See positional quasi-iodine (3.164) and positional precision (3.163). 3.14 non-conformance
a failure to meet one or more specified requirements. 3.15 reference space reference space geographic area (3.100) within which reference features (3.174) exist. For example, for the rivers data set (3.134), the reference space could be "North America".
3.16 operation
the change in the value of one or more feature attributes (3.181) occurring over a period of time (3.214). operating conditions3.17
the operating parameters of a positioning system (3.45), concerned with generating a specific set of values. 3.18 test purpose
the precise description of the objective to be achieved when designing an abstract test item (3.27). 3.19 test verdict
the verdict resulting from a test run (3.20). NOTE A test verdict can be either a failure determination (3.107), an inconclusive verdict (3.165), or a pass verdict (3.155). 3.20 test campaign
the running of a dedicated executable test suite (3.78) for a specific implementation under test (3.2). 3.21 stratum
a level in an ordered system of layers, levels or strata. NOTE For the purposes of this International Standard, this term may be used to understand the following concepts: (1) a marine, atmospheric or geological region separated by natural or artificial boundaries, (2) a socioeconomic level in a society consisting of people of the same or similar class, especially with regard to education or culture; (3) a vegetation layer, usually of the same or similar height (3.57). 3.22 interpolation method the interpolation of the value of a continuous function from discrete data. This method allows the function to be estimated at a finite number of points based on its behavior.
3.23 product specification product specification GB/T 17694 --1999
Description of a domain (3.88) and specification of a mapping of the domain to a data set (3.134). Abstract test method abstract test method 3.24
Method for implementing a test that is independent of a specific test procedure. 3.25 abstract test module abstract test module collection of related abstract test items (3.27). NOTE Abstract test modules may be nested in a hierarchical manner. 3.26 abstract test suite ATS
abstract test suite
Abstract test module (3.25) described in a conformance clause (3.190). This clause specifies the full set of requirements that must be met when claiming conformance to the standard.
abstract test case abstract test case 3.27
Formal basis for deriving an executable test item (3.79). NOTE An abstract test item may contain one or more test objectives (3.18). An abstract test item is independent of the implementation (3.122) and the test value. An abstract test item should be complete, that is, sufficient to enable a clear match between a test decision (3.19) and each observable test result (i.e., a sequence of test events). 3.28 abstraction level a level in a hierarchy of groups of elements (3.174) or concepts that correspond to definitions of types that appear at a higher level of abstraction.
Note: Levels of abstraction are ordered so that one level defines the type of information that appears at the next lowest level of abstraction. The lowest level is existential and is called the instance level (3.117).
3.29 sample sample
a collection of items (3.168) extracted from a property of an ontology (3.4) and analyzed to evaluate the ontology property. 3.30 string
an ordered arrangement of elements of a given data type (3.139). 3.31 lexical language language whose syntactic structure is expressed by a limited natural language vocabulary. 3.32 geodetic reference system coordinate system (3.224) based on a geodetic datum (3.33) that specifies the location of the origin (3.161) and the directions of the coordinate axes. 3.33 geodetic datum basic reference basis of a geodetic coordinate system, including reference ellipsoid parameters and positioning parameters and starting data for the calculation of geodetic coordinates (3.34). 3.34 geodetic coordinate geodetic coordinate coordinates used in geodetic surveying (3.222) based on the reference ellipsoid, usually expressed in geodetic longitude I, geodetic latitude B and geodetic height H.
3.35 era
named period (3.214).
Note: The lifetime (3.106) of an generation and the times (3.115) at which it begins and ends may be unknown or uncertain. 3.36 code code
A symbolic representation according to a particular pattern (3.94). 3.37 location
An identifiable place in the real world. Examples: street, intersection of two streets, building, country. 3.38 geographic identifier geographic identifier444
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A spatial reference (3.80) that symbolically identifies a feature (3.174). Examples: country name, address. 3.39 geographic data geographic data
Data (3.132) that is directly or indirectly related to a location (3.37) relative to the Earth. 3.40 geographic information geographic information (3.170) about phenomena that are directly or indirectly related to a location (3.37) relative to the Earth. geographic information service3.41
Service (3.48) that converts, manages, or provides geographic information (3.40) to a user. 3.42gazetteer
A list of instances (3.116) of a class or classes of real-world phenomena that contain some information (3.170) about their locations (3.161). Example: a gazetteer of city streets (3.42). 3.43map projectiona method of projecting points (3.44) or lines on a reference ellipsoid onto a plane according to a certain mathematical rule. 3.44point
A zero-dimensional geometric element (3.71).
3.45positioning systema system of measuring equipment used to determine the position (3.161) of a point of interest. Examples: inertial positioning system, integrated positioning system (3.67), optical positioning system, satellite radar positioning system. 3.46 attitude
the orientation of an object defined by the angles between the axes of its coordinate system (3.224) and the axes of an external coordinate system. NOTE In positioning services (3.48), this usually refers to the orientation of a user station (e.g., an aircraft, ship, or car). 3.47
encapsulate
to enclose in a condensed or compact form.
3.48 service
the distinct parts of a capability or function (3.62) provided by a person or automated system on one side of a service interface (3.49) to a person or other automated system on the other side of that interface. 3.49 service interface
the shared boundary between an automated system and another automated system or person. 3.50
complex feature
a feature composed of other features (3.174). 3.51
conceptual schema
pattern (3.94) of a conceptual model (3.53). 3.52 conceptual schema language formal language based on a conceptual form (3.54) for the purpose of expressing a conceptual schema (3.51). Examples: EXPRESS, IDEFIX, OMT.
Note: a conceptual schema language may be a lexical or graphical language and several conceptual schema languages may be based on the same conceptual form. 3.53 conceptual model a model (3.95) of concepts describing a domain (3.88). 3.54 conceptual formalism a set of modeling concepts used to describe a conceptual model (3.53). Examples: UML metamodel, EXPRESS metamodel. Note: a conceptual form may be represented by several conceptual schema languages (3.52). 3.55 height
The height (3.57) of a point (3.44) relative to a reference point or reference surface (e.g., the geoid, the earth ellipsoid, or a specific elevation (3.56) datum).
3.56 elevation
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The value of a ground point above a reference surface (3.12). For example, the value of a ground point above mean sea level. Note: The elevation is negative only when it is below the reference surface. 3.57 altitude
The value above or below a reference surface (3.12). For example, the value above mean sea level. Note: The altitude is negative only when it is below the reference surface. 3.58 grid
The regular chessboard arrangement of space corresponding to a specific reference system. 3.59 grid cell
a two-dimensional object used to represent the smallest indivisible grid (3.58) data element. 3.60 grid coordinate system a system of point positions on a plane (3.45). It is formed by mathematically projecting a system of points on a particular geodetic datum onto the plane. 3.61 Gregorian calendar a calendar in general use since 1582 (3.102). Note: In the Gregorian calendar, an ordinary year has 365 days and a leap year has 366 days, and the year is divided into 12 consecutive months. Function function
A procedure that performs a single operation (3.16) and can return a value or more. 3.63 Functional language function language A programming language that defines abstract data types (3.139) in terms of type-based operations, in which algebraic axioms specify the results of operations on each type.
3.64 Isolated node isolatednode
A node (3.74) that is not associated with any edge (3.5). 3.65 Ring ring
A one-dimensional, closed, non-intersecting element formed by an ordered set of connected edges (3.5) that forms the boundary (3.6) of a face (3.91).
5 Basic test
basic test
Preliminary test used to identify basic obstacles for subsequent testing. 3.67 integrated positioning systems integrated positioning systems Positioning system (3.45) that combines several positioning subsystems of different technologies to achieve predetermined operating characteristics. aggregation relationship 3.68
Subclass of a feature relationship (3.179) that describes a complex object as a combination of other features (3.174). 3.69
aggregate domain
A collection of lower-level objects. NOTE Aggregates are formed by combining all lower-level objects. They thus specify a mechanism for creating new domains from existing domains (3.199). For example, elements from two numeric domains (or one repeated in two) can be combined into ordered pairs (two dimensions) to form another domain. 3.70 geometry topology topological (3.157) structure derived from a collection of geometric primitives (3.71). 3.71 geometry primitive spatial component of an element (3.174) described by coordinates (3.223) and mathematical functions. It is considered to be an indecomposable element. 3.72 units of measure units of measure used to express a defined quantity of a scale parameter. Note: In positioning services, common units of measurement are either common units of arc measurement in geodetic coordinates (3.34), such as decimal degrees or degrees, minutes and seconds, or common units of length in plane coordinates (3.99), such as metres or feet. Positioning services must clearly distinguish between closely related units (e.g. US survey feet and international feet).
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3.73 Interval time scale A scale for time measurement that specifies an origin and one or more standard intervals (3.10) used to describe the position (3.161) and length of time elements (3.111) relative to the scale. 3.74 Node
Zero-dimensional topological element (3.159).
3.75 Decoding
The inverse of encoding (3.7).
3.76 scene
geometric element (3.71) that is a finite part of a specific grid. 3.77 Open Systems EnvironmentOSE
A reference model for developing a suite of standard bus interfaces that supports the POSIX standard. It provides scenarios for user services and standard specifications.
3.78 executable test suite
executable test suite
a collection of executable test cases (3.79) required to perform conformance testing (3.186). 3.79 executable test casean example of an abstract test case (3.27) with a value assigned to it. 3.80 spatial referencespatial referencea label, code (3.36) or value used to identify a real-world location (3.161). For example: "Shanghai"; postal district with postal code "100029"; represents a location with a value of +40+117+50" (40 degrees north latitude, 117 degrees east longitude, 50 meters altitude). 3.81
Spatial reference system A system used to identify real-world position quantities (3.161). For example: the 1980 Xi'an coordinate system, the 1985 national elevation datum; another example: the collection of all postal addresses.
3.82 Spatial unit spatialunit
1. A feature class that represents the indirect spatial position (3.161) of a feature (3.174). 2. A subdivision of an area (3.100) based on the value of a specific property 3.83 Spatial object An instance (3.116) of a type defined in the spatial schema (3.94). spatial complex
a collection of geometric elements (3.71) and/or topological elements (3.159) that are consistent with a spatial pattern (3.94). 3.85 spatial attribute feature property (3.181) that represents the spatial characteristics of a feature (3.174). Note 1 to entry: Spatial attributes of a feature are those properties such as its location (3.161), size, shape, etc. 3.86 connected node
a node (3.74) to which one or more edges (3.5) are connected. chain node graph
a spatial complex consisting of nodes (3.74) and edges (3.5). 3.88 universe of discourse
a universe of discussion about a real or imaginary world that encompasses all matters of interest. 3.89 logical relationship a subtype of element relationship (3.179) that applies to any logical association between two elements (3.174), except set relationship (3.68), composite relationship (3.221) and topological relationship (3.158). 447
3.90 medium
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intermediate material or medium used to transmit a data structure (3.138). Examples: CD-ROM, Internet, radio, etc. 3.91
face
two-dimensional topological element (3.159).
portrait
a definition of a schema (3.94) for describing the representation of geographic information (3.40). The representation is understandable to humans, including methods of symbolic description and methods of converting the schema into an application schema (3.195), but does not include map schema specifications. 3.93 portrayal element an element that graphically or otherwise represents a feature (3.174). 3.94 schema
a formal description of a model (3.95).
3.95 modelWww.bzxZ.net
an abstraction of some aspect of reality.
3.96 in-house testing a test performed by the test laboratory's client prior to formal service submission using an executable test suite (3.78) provided by the test laboratory.
3.97 capability test a test designed to determine whether an implementation under test (3.2) complies with the standard's specific characteristics as described in the test objective (3.18). 3.98 planar graph
a linked node graph (3.87) that can be geometrically realized on a two-dimensional plane, on which all intersections are located at nodes (3.74).
9 Planar coordinates An ordered set of two numbers that specify a position (3.161) in a plane reference system. 3.100 Area
A general term for a bounded, continuous two-dimensional object. It may or may not include a boundary. 3.101
Curve
A bounded, connected one-dimensional geometric element (3.71). 3.102
calendar
a temporal reference system (3.108) based on some interval scale in which positional quantities (3.161) are expressed as a combination of a calendar date (3.103) and a specific instant in time.
Note: Dates and times may each be expressed as a combination of elements based on different units of measurement (e.g., years, months, and days for dates, hours, minutes, and seconds for times).
calendar date
the name of a specific day within a calendar (3.102) year. 3.104raster map
data (3.132) a map based on a raster data (3.105) model (3.95). .3.105raster data
data (3.132) represented as a regular spatial array. 3.106 duration
amount of time between the start and end of a period (3.214). failure verdict
a test verdict (3.19) that reports a nonconformance (3.14). Note 1 to entry: A nonconformance can be either a failure to conform to the objective (3.18) of the test or a failure to conform to at least one of the conformance (3.185) requirements of the applicable standard. 3.108 temporal reference system a basis for measuring time.
3.109 temporal characteristic a feature attribute (3.181) or a metadata element (3.204) that is associated with time in its name and definition and has a value in the time domain.
3.110 temporal position temporal primitive (3.111) position (3.161) of a temporal reference system (3.108). 3.111 temporal primitive temporal primitive element of time dimension.
3.112 temporal attribute feature attribute (3.181) that describes the temporal properties (3.109) of a feature (3.174). 3.113 temporal coordinate temporal coordinate distance from the origin of an interval at an instant (3.115) in a time scale. temporal coordinate system 3.114
temporal reference system (3.108) based on an interval scale defined by a single standard interval. 3.115 instant
a zero-dimensional element of time, equivalent to a point (3.44) in space. 3.116 instance instance
geographical feature (3.174) and information (3.170) describing the characteristics of that feature. NOTE A data set (3.134) contains information about an instance (including feature attributes (3.181)). 3.117
instance level
a level of abstraction (3.28) consisting of instances (3.116). NOTE The instance level is the lowest level in a hierarchical nest of abstraction levels. 3.118 entity entity
1. a representation of a collection of data elements in a conceptual model (3.51). 2. a class of objects with common properties.
3.119 entity relationship entity relationship a logical connection between two entities (3.118). 3.120
entity type entity type
a definition and description of a collection of similar entity instances (3.116). 3.121 entity attribute entity attribute a description of an element of an entity (3.118).
3.122 implementation implementation
an implementation of a specification.
NOTE: An implementation includes the specification of a dataset (3.134) and the specification of a geographic information service (3.41). 3 Implementation eXtra Information for testing IXIT
Implementation eXtra Information for testing A statement containing all the information (3.170) about an implementation under test (3.2) and its corresponding system under test (3.3) that will enable a test laboratory to run an appropriate test suite against the implementation under test. NOTE: An implementation eXtra Information for testing typically provides details about the organization and storage of concepts in the system under test, and about the means of accessing and modifying the system under test.
3.124 Implementation Conformance Statement ICS
Implementation Conformance Statement 449
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A statement of the options and capabilities of a given standard supported by the implementation under test (3.2). 3.125 vector map vectormap
data (3.132) a map based on the graph data model (3.95). vector data vector data
data (3.132) represented by geometric elements (3.71). 3.127
event event
something that happens at an instant in time (e.g., a change in the state of a geographic feature (3.174)). 3.128 fitness for use
performance of a product that meets the requirements of an application (3.194). Note 1 to entry: Within the conceptual model (3.53) of data quality (3.141), fitness for purpose is an assessment of the suitability of data (3.132) for a specific need or application (which is often distinct from the purpose for which the dataset (3.134) was created), made by data users using quality assurance (3.170) reported by data producers of the corresponding dataset. 3.129 attribute attribute
a characteristic of an object or entity (3.118). 3.130 attribute domain the range or set of valid values of a metadata element (3.204) that an attribute (3.129) can accept. 3.131 attribute value attribute value the value assigned to a feature attribute (3.181). 3.132 data data
a reversibly translatable representation of information (3.170). It is in a format suitable for communication, interpretation or processing. data transfer datatransfer
the movement (3.192) of data (3.132) from one place to another through some medium (3.90). Note: the transfer of information (3.170) implies the transfer of data. 3.134 dataset dataset
an identifiable collection of data (3.132).
Note that a dataset may actually be a smaller set of data within a larger dataset, subject to constraints such as spatial extent or feature type (3.180). In theory, a dataset could be as large as a single feature (3.174 or feature type (3.181)) contained within a larger dataset.
3.135 dataset series a collection of datasets (3.134) that implement the same product specification (3.23). 3.136 data interchange the process of transmitting (3.133), receiving and interpreting data. 3.137 data clearinghouse a collection of organizations that provide access to digital data (3.132) through a single interface using common metadata (3.200) standards. 3.138 data structure
a computer-readable format used to store, access, transmit and retrieve data (3.132). 3.139
9 data type type
The kind of value that can be assigned to a data element (3.140). Examples include "integer", "real", "text", "date", and "geometric object".
3.140Data elementdata element
A unit of data (3.132) that is considered to be indivisible within a certain range. Data qualitydataquality
Data quality is the quality of an element (3.174) representation type, element representation, element attributes (3.181), element relationships (3.182), and so on.179), and an indication of the sum of the data set element representations identified in the 450
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element representation type operations (3.16), and data sets (3.134) specifications. Data quality is used to determine suitability (3.128). There are two types of information (3.170) about data quality: one is data quality quantitative elements (3.142), and the other is data quality qualitative elements (3.143). 3.142 data quality quantitative element data quality overview element quantitative information (3.170) component that proves the quality of a data set (3.134). Note: The applicability of a data quality quantitative element to a data set depends on the content of the data set and the rules for its generation, but not all data quality quantitative elements are suitable for all data sets. 3.143
data quality overview element data quality overview element non-quantitative information (3.170) component that proves the quality of a data set (3.134). Note: Information about the purpose, usage, and data history of a data set is non-quantitative information. 3.144 data quality domain data quality scope the range or characteristics of data (3.132) used to report quality information (3.170). Note 1 to entry: The data quality domain for a data set (3.134) may be a data set family (3.135) to which the data set belongs, the data set itself, or an identified report column (3.1).
3.145 data quality result data quality result the value or set of values obtained by applying a data quality measure (3.146) or the result of evaluating the resulting value or set of values against an acceptable level of quality. 3.146 data quality measure data quality measure the type of test applied to a data quality domain (3.144). Example: test of conformance (3.185) where the standard deviation is explicitly converted to an equivalent circular probability function and the limiting parameters of the test are 90 % confidence levels. Note 1 to entry: A data quality measure records both the name and a summary description of the test performed and, where appropriate, constraints or limiting parameters. 3.147
data quality model data quality model the formal structure used to identify and assess quality information. Data quality assessment procedure data quality quality evaluation procedure3.148
operation (3.16) used to perform and report a data quality metric (3.146). 3.149 data quality datedata quality datedate or range of dates on which a data quality metric (3.146) is performed. data quality value domaindata quality value domain3.150
a set of value types for reporting a data quality result (3.145). For example, "boolean variable", "distance", "ratio". 3.151
a component of a data quality quantitative element (3.142). It is used to describe some aspect of a data quality quantitative element. 3.152 digital imagedigital image
a two-dimensional array of arranged and spaced pixels that make up a picture. 3.153 operatoroperator
a combination of a domain (3.199) set, a range (3.210) set, and a function that maps each element of the domain to some corresponding element in the range.
3.154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a report of a test verdict (3.19) that is consistent with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structures using graphical symbols. 3.157 topology
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a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a feature relationship (3.179) that describes the boundary topology (3.157) and point set topology between two features (3.174). 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature142 data quality quantitative element quantitative information (3.170) component that provides information on the quality of a data set (3.134). Note to entry: The applicability of a data quality quantitative element to a data set depends on the content of the data set and the rules by which it was generated, but not all data quality quantitative elements are appropriate for all data sets. 3.143
data quality overview element non-quantitative information (3.170) component that provides information on the purpose, usage and overview of a data set. 3.144 data quality scope scope or characteristics of the data (3.132) used to report quality information (3.170). Note to entry: The data quality scope for a data set (3.134) may be a data set family (3.135) to which the data set belongs, the data set itself, or an identified report column (3.1).
3.145 data quality result data quality result value or set of values resulting from the application of a data quality measure (3.146) or the result of evaluating the resulting value or set of values against some acceptable level of quality. 3.146 data quality measure data quality measure type of test applied to a data quality domain (3.144). Example: test of consistency (3.185) where the standard deviation is explicitly converted to an equivalent circular probability function and the limiting parameter of the test is a 90 % confidence level. NOTE A data quality measure records both the name and a summary description of the test performed and, where appropriate, constraints or limiting parameters. 3.147
data quality model data quality model a formal structure for identifying and assessing quality information. data quality evaluation procedure data quality evaluation procedure 3.148
operations (3.16) for applying and reporting data quality measures (3.146). 3.149 data quality datedata quality date the date or range of dates on which a data quality measure (3.146) is applied. data quality value domaindata quality value domain3.150
a set of value types for which a measurement result (3.145) is reported. For example, "Boolean variable", "distance", "ratio". 3.151
a component of a data quality quantitative element (3.142). It is used to describe some aspect of a data quality quantitative element. 3.152 digital imagedigital image
a two-dimensional array of arranged and spaced pixels that make up a picture. 3.153 operator
a combination of a domain (3.199) set, a range (3.210) set, and a function that maps each element of the domain to some corresponding element in the range.
3.154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a report of a test verdict (3.19) that is consistent with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structures using graphical symbols. 3.157 topology
GB/T 17694—1999
a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a feature relationship (3.179) that describes the boundary topology (3.157) and point set topology between two features (3.174). 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature142 data quality quantitative element quantitative information (3.170) component that provides information on the quality of a data set (3.134). Note to entry: The applicability of a data quality quantitative element to a data set depends on the content of the data set and the rules by which it was generated, but not all data quality quantitative elements are appropriate for all data sets. 3.143
data quality overview element non-quantitative information (3.170) component that provides information on the purpose, usage and overview of a data set. 3.144 data quality scope scope or characteristics of the data (3.132) used to report quality information (3.170). Note to entry: The data quality scope for a data set (3.134) may be a data set family (3.135) to which the data set belongs, the data set itself, or an identified report column (3.1).
3.145 data quality result data quality result value or set of values resulting from the application of a data quality measure (3.146) or the result of evaluating the resulting value or set of values against some acceptable level of quality. 3.146 data quality measure data quality measure type of test applied to a data quality domain (3.144). Example: test of consistency (3.185) where the standard deviation is explicitly converted to an equivalent circular probability function and the limiting parameter of the test is a 90 % confidence level. NOTE A data quality measure records both the name and a summary description of the test performed and, where appropriate, constraints or limiting parameters. 3.147
data quality model data quality model a formal structure for identifying and assessing quality information. data quality evaluation procedure data quality evaluation procedure 3.148
operations (3.16) for applying and reporting data quality measures (3.146). 3.149 data quality datedata quality date the date or range of dates on which a data quality measure (3.146) is applied. data quality value domaindata quality value domain3.150
a set of value types for which a measurement result (3.145) is reported. For example, "Boolean variable", "distance", "ratio". 3.151
a component of a data quality quantitative element (3.142). It is used to describe some aspect of a data quality quantitative element. 3.152 digital imagedigital image
a two-dimensional array of arranged and spaced pixels that make up a picture. 3.153 operator
a combination of a domain (3.199) set, a range (3.210) set, and a function that maps each element of the domain to some corresponding element in the range.
3.154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a report of a test verdict (3.19) that is consistent with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structures using graphical symbols. 3.157 topology
GB/T 17694—1999
a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a feature relationship (3.179) that describes the boundary topology (3.157) and point set topology between two features (3.174). 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature1).
3.145 data quality resultdata qualityresultvalue or set of values resulting from the application of a data quality measure (3.146) or the result of evaluating the resulting value or set of values against some acceptable level of quality. 3.146 data quality measuredata quality measuretype of test applied to a data quality domain (3.144). Example: test of consistency (3.185) where the standard deviation is explicitly converted to an equivalent circular probability function and the limiting parameter of the test is a 90 % confidence level. NOTE A data quality measure records both the name and a summary description of the test performed and, where appropriate, constraints or limiting parameters. 3.147
data quality modeldata qualitymodelformal structure for identifying and assessing quality information. data quality evaluation procedure3.148
operation (3.16) for applying and reporting data quality measures (3.146). 3.149 data quality datedata quality date the date or range of dates on which a data quality measure (3.146) is applied. data quality value domaindata quality value domain3.150
a set of value types for which a measurement result (3.145) is reported. For example, "Boolean variable", "distance", "ratio". 3.151
a component of a data quality quantitative element (3.142). It is used to describe some aspect of a data quality quantitative element. 3.152 digital imagedigital image
a two-dimensional array of arranged and spaced pixels that make up a picture. 3.153 operator
a combination of a domain (3.199) set, a range (3.210) set, and a function that maps each element of the domain to some corresponding element in the range.
3.154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a report of a test verdict (3.19) that is consistent with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structures using graphical symbols. 3.157 topology
GB/T 17694—1999
a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a feature relationship (3.179) that describes the boundary topology (3.157) and point set topology between two features (3.174). 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature1).
3.145 data quality resultdata qualityresultvalue or set of values resulting from the application of a data quality measure (3.146) or the result of evaluating the resulting value or set of values against some acceptable level of quality. 3.146 data quality measuredata quality measuretype of test applied to a data quality domain (3.144). Example: test of consistency (3.185) where the standard deviation is explicitly converted to an equivalent circular probability function and the limiting parameter of the test is a 90 % confidence level. NOTE A data quality measure records both the name and a summary description of the test performed and, where appropriate, constraints or limiting parameters. 3.147
data quality modeldata qualitymodelformal structure for identifying and assessing quality information. data quality evaluation procedure3.148
operation (3.16) for applying and reporting data quality measures (3.146). 3.149 data quality datedata quality date the date or range of dates on which a data quality measure (3.146) is applied. data quality value domaindata quality value domain3.150
a set of value types for which a measurement result (3.145) is reported. For example, "Boolean variable", "distance", "ratio". 3.151
a component of a data quality quantitative element (3.142). It is used to describe some aspect of a data quality quantitative element. 3.152 digital imagedigital image
a two-dimensional array of arranged and spaced pixels that make up a picture. 3.153 operator
a combination of a domain (3.199) set, a range (3.210) set, and a function that maps each element of the domain to some corresponding element in the range.
3.154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a report of a test verdict (3.19) that is consistent with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structures using graphical symbols. 3.157 topology
GB/T 17694—1999
a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a feature relationship (3.179) that describes the boundary topology (3.157) and point set topology between two features (3.174). 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a test verdict (3.19) that reports compliance with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structure using graphical symbols. 3.157 topology
GB/T 17694—1999
a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a relationship (3.179) between two features (3.174) that describes the boundary topology (3.157) and point set topology. 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature154 state
a condition (e.g. the value of a particular feature attribute (3.181)) that persists over a period of time (3.214). 3.155 passverdict
a test verdict (3.19) that reports compliance with the requirements of the test objective (3.18). 3.156 graphical language a language that expresses syntactic structure using graphical symbols. 3.157 topology
GB/T 17694—1999
a scientific description of the relationships between connected or adjacent points (3.44), lines and surfaces (3.91). Specifically, it refers to properties of objects that remain unchanged under continuous mapping transformations.
topological relationship3.158
a relationship (3.179) between two features (3.174) that describes the boundary topology (3.157) and point set topology. 3.159
topologic primitive
An element of topology that cannot be decomposed.
universal face
A face (3.91) that contains the entire interior area of a space complex (3.84) that is not contained by any other face. 3.1611
position
1. A numerical or other description of the location of a point (3.44) or object. 2. A point or set of points in a geometric space.
positional reference frame3.162
A parameter structure that can be used to uniquely identify a location (3.37). 3.163
positional precisionA measure of the repeatability of a set of measurements. NOTE For positioning purposes (3.48), repeated measurements of a position quantity (3.161) about a given location (3.37) should agree closely. 3.164 Positional accuracy Closeness of agreement between the result of a position measurement (3.161) and the true or expected value of the location. NOTE Positional quantity precision (3.163) and inherent certainty (3.13). inconclusive verdict 3.165
A test verdict (3.19) given when neither a pass nor a fail is possible. 3.166
Linear referencing system A means of identifying a location (3.37) by reference to a segment of a linear feature (3.174) such as a road and the distances of certain points along that segment.
relative position
the position (3.161) of a point (3.44) relative to some other point. 3.1685
item
a quantity that can be described or considered individually. Note 1 to entry: An item may be any part of a set (3.134), such as an element (3.174) representation, an element type (3.180), an element relationship (3.179), an element relationship type, an element property (3.181), an element property type (3.182), or a combination of elements. 3.169 Coordinated Universal Time UTC
The time scale established by the International Time Bureau. It is the basis for the coordinated distribution of standard rates and time signals. 3.170 information
knowledge about objects such as facts, events (3.127), things, processes, ideas (including concepts). It has a specific meaning within a defined context.
performance indicators performance indicators parameters of a positioning system (3.46) that are used as quality indicators to describe how well a given task can be performed. 3.172 cycle
an operation (3.16) consisting of some regularly recurring events (3.127) or states. 3.173 verification test tests that mathematically prove that the implementation under test (3.2) is correct, consistent and complete. 3.174 feature173 Verification test A test that mathematically proves that the implementation under test (3.2) is correct, consistent, and complete. 3.174 Feature173 Verification test A test that mathematically proves that the implementation under test (3.2) is correct, consistent, and complete. 3.174 Feature
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