What design choices have to be made when integrating application system products to create an integrated...

What design choices have to be made when integrating application system products to create an integrated application system?

Software engineering

Expert Solution

Integrated application systems are applications that include two or more application system products and/or legacy application systems. You may use this approach when there is no single application system that meets all of your needs or when you wish to integrate a new application system with systems that you already use. To develop integrated application systems, you have to make a number of design choices:

Which individual application systems offer the most appropriate functionality? Typically, there will be several application system products available, which can be combined in different ways.
How will data be exchanged? Different products normally use unique data structures and formats. You have to write adaptors that convert from one representation to another.
What features of a product will actually be used? Individual application systems may include more functionality than you need and functionality may be duplicated across different products.

Application system integration can be simplified if a service-oriented approach is used. A service-oriented approach means allowing access to the application system's functionality through a standard service interface, with a service for each discrete unit of functionality. Some applications may offer a service interface but, sometimes, this service interface has to be implemented by the system integrator. You have to program a wrapper that hides the application and provides externally visible services.

venereology answered 1 year ago

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