Access to Legacy Applications and Data

Component Services Design Time

The Component Services programming model provides the framework to develop components that encapsulate business logic.

Component Services fits perfectly into a three-tier programming model; acting as middleware, it manages the components that make it possible for a Web application to handle many clients. It also provides developers with a great deal of flexibility:

The model emphasizes a logical architecture for applications, rather than a physical one. Any service can invoke any component.
Component Services connects requests for transactions (calls from scripts in ASP pages) to business logic and to database applications, so that you are not required to develop these processes.
The applications are distributed, which means you can run the right components in the right places. This benefits users and optimizes network and computer resources.

See the following:

Three-Tier Applications and Middleware
Development Efficiency