Multi-user online editing and modification method of City Information Model (CIM) data

The City Information Model (CIM) is a complex data set that requires online editing and modification by multiple users. To achieve this goal, some tools and techniques are needed.
The following are some methods to implement multi-user online editing and modification of CIM:
1. Use a version control system: A version control system (such as Git) can allow multiple users to Edit the same CIM dataset simultaneously without causing data corruption. Users can use the branching feature to make modifications without disturbing other users. Git also provides version history and conflict resolution capabilities to help users manage changes and ensure data integrity.
2. Use a Web-based GIS platform: A Web-based GIS platform (such as ArcGIS Online) allows multiple users to edit collaboratively on the same map. These platforms provide a rich set of tools and functions, such as annotating, drawing, querying, analyzing and sharing data. Users can restrict access to and edit data through permission management, and can view other users' changes in real time on the map.
3. Use a database management system: A database management system (such as PostgreSQL) can store and manage CIM data sets and provide support for multi-user editing and access. Users can use SQL language for query and update operations without worrying about data conflicts or errors. In addition, the database can also provide data backup and recovery functions to ensure data security and reliability.
4. Use online collaboration tools: Online collaboration tools (such as Google Docs) allow multiple users to collaboratively edit CIM data sets, similar to using Microsoft Word to collaboratively edit documents. These tools provide real-time collaboration and synchronization capabilities so that users can immediately see other users' changes. However, these tools may not be adequate for large, complex CIM datasets because they often lack GIS-specific features and tools.