GB/T 41448-2022 English PDF

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GB/T 41448-2022: Geographic information - Observations and measurements
Status: Valid

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Basic data

Standard ID: GB/T 41448-2022 (GB/T41448-2022)
Description (Translated English): Geographic information - Observations and measurements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A75
Word Count Estimation: 49,455
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41448-2022: Geographic information - Observations and measurements

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Geographic information -- Observations and measurements ICS 07.040 CCSA75 National Standards of People's Republic of China Geographic Information Observation and Measurement (ISO 19156.2011, IDT) Published on 2022-04-15 2022-04-15 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III 1 Scope 1 2 Consistency 1 2.1 Overview 1 2.2 Conformance classes related to application models involving observations and measurements1 3 Normative references 2 4 Terms and Definitions 3 5 Abbreviations and symbols 5 5.1 Abbreviations 5 5.2 Pattern languages 5 5.3 Model element names 5 6 Dependencies 5 7 Basic characteristics of observations 6 7.1 Observation Scenario 6 7.2 Observation Mode 7 7.3 Use of observational models 14 8 Specific observations14 8.1 Classification of observations by outcome type 14 8.2 Observations with constant outcomes 15 8.3 Observations where the outcome is a variable 16 9 Basic characteristics of sampling elements 18 9.1 Sampled Scenes 18 9.2 Sampling Mode 19 10 Spatial sampling elements 23 10.1 Scenarios for Spatially Sampling Features 23 10.2 Spatial sampling feature mode 23 10.3 Splitting of spatially extended sampling elements in observations 25 10.4 Common names of sampling elements (informative) 25 11 samples 26 11.1 Sample scene 26 11.2 Sample Mode 26 Appendix A (Normative) Abstract Test Suite 29 Appendix B (Informative) Comparison Table of Observation and Measurement Terms and Common Terms in Related Disciplines 33 Appendix C (normative) Utilities 36 Appendix D (Informative) Examples of Application of Observation and Sampling Models 39 Reference 45

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is equivalent to ISO 19156.2011 "Geographic Information Observation and Measurement". Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the Ministry of Natural Resources of the People's Republic of China. This document is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230). This document is drafted by. China Academy of Surveying and Mapping, China Geological Survey Development Research Center, China Coal Geology Bureau Exploration and Research Research Headquarters. The main drafters of this document. Li Qingyuan, Huang Guoman, Liu Huanling, Wu Zixing, Wang Xianghong, Chen Meiying, Zhao Xin. Geographic Information Observation and Measurement

1 Scope

This document specifies a conceptual model for observations and the sampling elements involved. It provides observations within and among different scientific and technological communities Behaviors and their outcome descriptions provide a model for information exchange. Observations usually involve sampling the final element of interest. This document specifies a set of generic sampled feature classes classified primarily by topological dimensions type and samples for ex situ observations. The schema includes relationships between sampled features (subsampling, derived sampling). This document only focuses on the visible external interface, and does not limit the internal implementation, which is different from the interface specification for the actual environment.

2 Consistency

2.1 Overview Chapters 7 through 11 of this document use the Unified Modeling Language (UML) to describe conceptual schemas for describing observations. Concept classes To define these concept classes. a) It can be used to build application modes of cross-domain, b) Can also be used in application schemas, specific standards, implementation specifications. A set of UML types that can be implemented in a variety of ways controls its flexibility. Familiar alternative names can be used in specific fields name, but provide a one-to-one correspondence table with the classes and attributes of this document. The UML models in this document define conceptual classes, various software systems define implementation classes or data structures, all of which Definitions refer to the same information content. Implementations can use the same names as in this model, so the types defined in the UML model Can be used directly in application mode. Appendix A specifies a set of conformance tests that support an application from defining minimum requirements for data structures to full object implementation. current full requirements. 2.2 Conformance classes associated with application modes involving observations and measurements ISO 19109.2005 describes general conformance rules for application schemas. Application schemas that claim to be consistent with this document shall comply with the The rules specified in Chapters 7 to 11, and the tests of the relevant abstract test suite specified in Appendix A are passed. According to the characteristics of the application mode, 18 consistency classes are divided. Table 1 lists these classes and their corresponding subclasses to the abstract test suite entry. Table 1 Conformance classes related to observation and measurement application modes Consistency class Chinese name Consistency class English name sub-entry ......

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