Using full-function form BAS

With full-function BAS, resource groups are not associated directly with resource descriptions. An additional object, the resource assignment (RASGNDEF), defines the characteristics and usage of a selected resource type from a resource group. The resource assignment is associated with a resource description, which can then be used to represent a business application. See Figure 15

These objects are used to define your resources in terms of their business application.

Using resource assignments

Power and flexibility in the management of resources is offered by the resource assignment (RASGNDEF) object.

Note:
If you are using the migration form of BAS, you do not use resource assignments.

Each resource assignment relates to one resource type within a resource group, and it must be associated with a resource description, if it is to be used in logical scoping or automatically installed. Each resource group can be in more than one resource assignment.

You can further refine the selection of resources within the type specified by the resource assignment by using a filter expression, and you can change the resource attributes using an override expression. You can combine in the expression an unlimited number of attribute values, using the logical operators AND, OR, and NOT. When the resource description is specified as the scope, CICSPlex® SM processes only those resources that meet the specified selection criteria. This gives you a great deal of control over the management of your resources.

Each resource assignment must be added to a resource description, if it is to be installed and used in logical scoping. Creating resource assignments and adding them to a resource description enables you to manage sets of resources with a logical scope that can span may CICS® systems. In this case, the resource description becomes, in effect, a user-defined, logical set of resources, such as an application. You might have several different resource descriptions associated with a given CICS system, each one representing a different set of resources.

For example, with a resource assignment, you can:

The resources selected by a resource assignment cannot be managed independently. The resources must be members of a resource group and the resource assignment must be associated with at least one resource description.

Using resource descriptions

With full-function BAS, a resource description represents an application, that is, a set of logically-related resources that can span more that one CICS system. The resource description thus identifies the logical scope of the application.

Each resource group to be used as part of the application must be added to the resource description. You can associate whole resource groups with a resource description to create a larger set of resources (much like a CSD group list). This allows you to manage the resources more efficiently. The set of resources identified in a resource description can be:

The BAS objects that are used for creating and managing these resource associations shown in Figure 14 and their functions are summarized in Table 3.

For more information about resource descriptions see the CICSPlex System Manager Managing Business Applications.

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