Significance indicates the importance of a CI. In a service, many CIs can affect another CI or service. Although each CI affects the health of the service, some CIs can be more important than others. For example, it is important that a print server is available for an online order service. However, the print server does not affect order processing as much as the inventory database does. In this case, the print server has a lower significance than the inventory database.
Significance is a property of a CI in the context of a service. Each CI type has a default significance, but the actual significance is stored in the relationship, thus providing significance with a service scope. When you change significance for an individual CI in a service, the CI's significance value only changes within that service. If the CI belongs to other services, it retains its previous significance value in those services. This behavior ensures that you can maintain different significance values for the same CI if it is more or less important to other services.
CIs can be in as many services as needed and can affect each service differently, based on the significance setting. Suppose that the Payroll department also uses the print server to print checks. Therefore, the print server has much higher significance.
Significance is a value from 1 through 10, where 1 is the least significant and 10 is the most significant. The numeric value denotes how important a child object (antecedent) is to the functioning of its parent object (dependent). Each CI is assigned a significance when it is imported from a domain manager.
CA SOI assigns a default global significance value to every CI type available in the product. For instance, all servers of a Computer System type added to a service model have a significance of 5, while switches and routers have a value of 9. The types Service, Network, and Operating System are considered to be the most important and have a significance of 10.
You can set significance globally or for individual CIs and relationships.
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