Guideline: Representing Interfaces to External Systems |  |
This guideline introduces system level interfaces.
Relationships
Related Elements | Develop Business Rule Application Architecture Software Architecture
Main Description
Interfaces with external systems should be consistently handled throughout the system. The architecture need not include a specific, detailed design for each system interface. It is often enough to simply identify the existence of the interface as a significant part of the architecture and create a Component to encapsulate the detail, so that it can be developed later. The Entity-Control-Boundary Pattern provides the basis for a useful technique to support this. Specifically, if the system communicates with another system, define one or more components to describe the communication protocol. The use of a component allows the interface to the external system to be defined and stabilized, while leaving the design details of the system interface hidden as the system evolves.
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Concepts | Component
Guidelines | Entity-Control-Boundary Pattern
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