4. Organization Catalogs : 4.2 Populating a Catalog : 4.2.1 Catalog Items
   
4.2.1 Catalog Items
To populate catalog items such as vApp templates, use the vCloud Director Catalogs tab (see Figure 4), or add them from the My Cloud tab of a powered-off vApp.
Figure 4. vCloud Director Catalogs Tab
 
Consider the following when determining the number of vApp templates to add to the catalog:
*A need to enforce standardized virtual machine configurations.
*A requirement to provide applications pre-configured as vApps.
*User privileges needed to modify vApp and virtual machine configurations.
The size of the anticipated user base and the level of control granted to users determines how many vApp templates to create.
The following are examples of common use cases for catalog entities:
*A vApp Author, or application developer, who deploys a vApp as a development and testing platform.
*A vApp User, or business user, who deploys a vApp with the latest version of an internally developed application for user acceptance testing (UAT).