Implementation Guide › Planning and Design › Design › Contract Modeling (Contract Manager) › How the Modeling Process Works › Questions for the Contract Manager

Questions for the Contract Manager

The following are the questions the Contract Manager must consider in order to ensure that all aspects have been taken into account:

How do I know I've chosen the correct Service Component?

If the service component can be applied to more than one Contract and can be measured in more than one aspect, it has been defined correctly.

For example, System X is a system provided to more than a single customer and can be measured by its availability, reliability, performance, and so on.

How do I know I've chosen the correct Service Domain?

If the Service Domain can be measured or calculated in more than one way, it is describing a general aspect of the service provided and is therefore the correct Service Domain.

For example, the availability can be measured in number of ways, one of which is the percentage of time available. Others can be the percentage of availability during or out of business hours, the number of failures, mean time between failures (MTBF), mean time to repair, maximum down time, average down time, total down time, and so on. All of these are different ways with which to evaluate the availability of a particular system.