What Is an Application Server?
An application server provides a server-side platform for building and deploying business logic. This business logic can be distributed across both client and server or can reside solely on the server. Most businesses use this concept today in systems that range from mainframe transaction systems to the stored procedures of client/server database management systems. All application servers have at least three discrete layers that interoperate: business logic layer, presentation layer, and data access layer. The business logic layer is the heart of the application server where all the intelligence and business rules are encapsulated in object-oriented reusable components. The data access layer allows the integration ...
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