Create user defined attributes (UDAs) to let you expand the limited number of already defined attributes associated with the different data types. There are four types of UDAs:
Composition UDAs are the most important type of UDA as this allows you to associate data you have in your facility with projects, users and versions of compositions in Composite. This data could be used to find compositions or help determine information about the material referenced in the setup, such as camera setup. Composition UDAs are associated with the versions of compositions, and can have different information in the UDAs.
Project UDAs allow your facility to store job related information within the Composite workflow. This could be used by an artist to find out who is responsible for a given shot or it could be used to store project information to be used in a Python script.
User UDAs let you store information related to a specific user in Composite. This could be used to send a user an email as part of a Python script or to store job information.
A scoped UDA is a UDA that has an artificial scope defined by the user. For instance, a UDA called Status has no scope whereas a UDA called Project:Status has a scope. These UDAs are just a way for you to keep track of what the UDA applies to; Status applies to all data types while Project:Status should only apply to the project data type (although there is nothing stopping you from referencing a project UDA from the metadata tab in your project preferences).
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