
In SAP's D&S system, three maintenance attributes can currently be maintained. These include the Work Center, Maintenance Relationships and Maintenance Capabilities.

In Plant Maintenance, work centers are used as:
- Main work center in the master record for the equipment or functional location
- Main work center in a maintenance item
- Main work center in the task list header
- Performing work center in the operations for a task list
- Main work center in the order header - Performing work center in the operations for an order
Work centers belong to the master data in PM and provide the capacity required to perform a task.
Costing
You can use costing to determine how much internal activity by a product unit costs. The aim of costing is to attribute the costs incurred to the individual cost objects. It uses the work center to link the operation to cost accounting by maintaining cost centers and activity types. If the work center is used in an operation, standard values can be entered for the activity types specified in the work center.
Scheduling
You can use scheduling to determine the dates when operations should be performed. For this, the time required for the operations must be calculated and compared with the time available in the work center. The standard values and quantities in the operations are used as the basis for this calculation. During scheduling, the start and end dates for the operations are calculated from this data using formulas, which have been entered for scheduling in the work centers.
Capacity planning
In capacity planning, the capacity requirements for the operations in the orders are determined and compared with the available capacity defined in the work center. During capacity planning, you can use work center hierarchies to aggregate (at higher-level work centers) the available capacity and capacity requirements of lower-level work centers.
All SAP Work-managing modules use Work Centers to manage capacities and perform work. That includes Plant Maintenance, Quality Management, Production Planning and Project System.

The figure shows an exemplary assignment of responsible and performing work center in an organizational structure. Positions are structures used to define available slots to which employees can be assigned.
Coy. = Company
Pt. = Platoon

The diagram shows the D&S specific work center integration. The two fields of Human Resources and Plant Maintenance are linked with each other.
Work center links provide the connection between work centers and other objects within the SAP System. You can link a work center to the following objects:
- Cost center
- Qualifications
- Staffing positions
- People

Maintenance capabilities identify which maintenance unit can perform certain maintenance activities.
It is possible to assign one or more maintenance capabilities values to a force element from a pre-configured value list. The left panel shows predefined Maintenance Capabilities, which you can create individually.
Note
It also gives the ability to search for a specific skill. For example, I might be looking for maintenance centers which are able to repair a specific engine.The list of maintenance capabilities can be completely customized to meet the needs of the customers.

In this example, Force Element B corresponds to the 1st Tank Coy. This Force Element has two Maintenance Relationships. The first Maintenance Relationship to the Force Element 1st Tank Platoon has no Default Assignment. This means that only a certain previously defined maintenance capability is covered by this relationship. In this case a mechanical one. The second Maintenance Relationship has a default assignment. This means that all maintenance capabilities are covered.