Case Study 1: System Availability

Consider the following contractual guarantee:

“System X must be available for at least 99.6% of the month during business hours.”

This could be described using the following CA Business Service Insight entities:

Metric Name: System X % of time available
Tracking Period: 1 month
Timeslot: Business Hours (needs defining further later)
Business Logic: ((time available)/(total time))*100
Note: This case study is concerned only where the monitoring falls within business hours (which is the time slot of the Metric)
Target: 99.6%

In addition to the previous Metric information, the following items from the system service catalog can also be deduced from the above description:

Service: System X.
Service Domain: Availability.
Domain Category: % of time available.
Service Group: Any group that identifies more than one system for which there can be monitoring. At this stage, it is difficult to establish whether a suitable group can be created.

So, now you can reproduce the diagram from the Contract Modeling section of this document showing these entities in a diagram.