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Understanding the Service Application Framework, in terms of its function and architecture, is relatively straightforward. However, taking this information and making use of it in a real world situation is a bit more involved. Conceptually, the purpose of the Service Application Framework is to make scalable, enterprise-ready services easy to maintain and consume. Although the architecture lays out how this will be done, at a nuts-and-bolts level, implementing this in a practical way introduces a fair amount of complexity.
So that you can properly understand the workings of the framework and make use of it when creating your own service applications, let’s create a basic translation service. The service will be configured using the Manage Service Applications section of Central Administration and will be capable of being used by custom web parts within a site.