This figure illustrates that a service can have more than one instance. It also illustrates that one instance can be in more than one service. It shows a database and eight instances, and then the following mappings:

• Instance 1, which maps to Service A.
• Instances 2 and 3, which map to Service B.
• Instance 4, which does not map to anything.
• Instance 5, which maps to Service C.
• Instances 6 and 7, which map to Service D.
• Instances 7 and 8, which map to Service E.

In this figure, Instance 7 maps to both Services D and E.