Four Capabilities have been identified as useful for supporting a purchase order
process. It is seen here that the Purchasing Capability uses the capabilities of the other three to provide its
service.
Figure 1. Capabilities supporting a purchase order process and their relationships
These Capabilities represent candidate services -- which will be subjected to further analysis to determine whether
they need to be exposed for external consumption.
As we see below, this analysis concluded that each of the three used Capabilities need to be exposed as
services. This is so-indicated here by adding the requisite ServiceInterfaces to the diagram and appropriately
connecting Capabilities with their related derived products.
Figure 2. Capabilities and their derived ServiceInterfaces
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