The loose coupling concept has multiple dimensions. For instance -
- Integration between two applications may be loosely coupled in time using message-oriented middleware - meaning the availability of one system does not affect the other.
- Integration may be loosely coupled in format using middleware to perform data transformation - meaning differences in data models do not prevent integration.
- The service interface is independent of the implementation - meaning applications can be built by composing one or more services without knowing the services' underlying implementation.
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