T/CECC 29.3-2024 Data Classification Guidelines Part 3: Geospatial Mapping (English translation only)

Scope

Scope: This document provides guidelines for the classification and grading of geographic mapping data, including the process of classifying and grading geographic mapping data, classification principles and frameworks, grading principles and level divisions. This document is applicable to the management of the classification and grading of geographic mapping data, providing guidance and reference for the classification and grading of geographic mapping data. Main technical content: Classification and grading process: including data asset sorting, data classification, data grading, catalog reporting, dynamic update management, etc. Classification: including classification principles and classification frameworks. Classification principles follow the principles of scientificity and rationality, applicability and flexibility, integration of spatial data and attribute data, stability and extensibility. This document provides a classification framework for geographic mapping data from different dimensions, including data type, data source, data use, scale and accuracy, data format, geographic element type, and geographic entity data content. Grading: including grading principles and level divisions. Grading principles follow the principles of enforceability, clarity, higher standards for higher levels, comprehensiveness, timeliness, and dynamic updating. Data grading, referring to GB/T 43697-2024, can be divided into three levels: core data, important data, and general data.

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