Aerospace series - LOTAR - Long Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data - Part 004: Description methods
航空航天系列 - LOTAR - 长期归档和检索数字技术产品文档 如3D CAD和PDM数据 - 第004部分:描述方法
This European Standard presents methods which are divided into four main categories:
1) scope and scenario description;
2) process description;
3) data;
4) system architecture.
For scope and scenario description, the modelling methods are based on Unified Modelling Language (UML) Use Case diagrams. The process descriptions are done using Simplified Activity diagrams. Data modules are described by Express G diagrams. Rules and constraints are described via Express-Where-Rules. Further descriptions, for example, for a data dictionary, are based on tabular forms.
To support the development of a system architecture, the modelling method of UML Package diagrams is used.