.NET Patterns: Architecture, Design, and Process

Service Façade

Intent

Encapsulate business logic using a “controller” class to become the primary entry point from which all business logic (usually of a specific business category) will be contained and/or driven. Provide Web services with single entities to call directly.

Problem

For this pattern, probably the simplest of all mentioned patterns in this book, the problem solved is also simple. When developing Web services in .NET, developers may immediately get the tendency to begin placing business logic within the code directly behind the Web service class provided by VS.NET. This includes any Web methods added to a Web service. The problem here is that, as you may already surmise, “cluttering up” this section with business rules and complex ...