MS CRM 4.0 Security Architecture

Does anybody know crm workflow when i create some entity ? I need to know where CRM check perm开发者_如何学Pythonission for Create, Update and so on. Is it in SQL tables and stored procedures or it's in CRMService ?

All permissions are stored in the CRM Database, using Permissions, Roles and Business Units. If you want to check those roles, just open CRM, and in the Settings > Administration > Security Roles and you will see all the Security Structure.

If you want to directly view the security data, you can take a look at the database, but it's really hard to figure out everything.