| 摘要 |
Source entities with initially predefined properties for service modeling are presented in a library for user selection as service modeling entities. An automated computer process expediter copies user selected ones of the source entities from the library into a computer readable storage medium providing a services layer. The copying generates instances in the services layer of the selected service modeling source entities, such that the services layer instances at least initially include the initially predefined properties of their respective source entities. The automated computer process expediter maintains the properties of the selected ones of the source entities, including maintaining the selected source entities' properties independently of changes made in a first change mode to the properties of the service modeling entity instances, which are in the services layer, so that the user may change the properties of the layer service modeling instances.
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