> #### What is a collection?

> A collection is a group of resources (known also as members) that you define. You group resources into a collection based on criteria that you find valuable when grouped and viewed together.

> You can include the following resources in a collection:

> - All monitored resources, such as CPU, disks, databases, or WebSpeed Transaction servers. A resource can be a member of multiple collections.
> - Jobs.
> - Reports.
> - Other collections.

> When you create a collection, you assign it a name and provide its definition. You can identify the collection members when you create the collection, and you can later add or remove members. You can include resources from multiple containers in a collection.

> When you select members for a collection, you can use a wildcard feature that enables you to select all resources, all resources of a particular type, or all resources on all containers, etc. Using the wildcard is a powerful way to manage the members of a collection; for example, if you select all databases on all containers as members of a collection, databases added to containers after you created the collection are automatically added as members of the collection. Likewise, any database that is removed from a container is also removed automatically from the collection.

> When you look at the status of a collection, you see a rollup of the status of all members of the collection. For example, consider a scenario in which you host an application that is used by multiple customers. The application uses multiple databases and OpenEdge brokers, and it spans several hosts. If your customers contract for premium services that include dedicated hosts, databases, and/or brokers, you can group resources based on which customers use them. In so doing, you can quickly assess the status of the application for any of the supported customers.

Copyright © 2004 Progress Software Corporation www.progress.com Voice: (781) 280-4000 Fax: (781) 280-4095