Structural Design Patterns and .NET Framework 2.0
There are many uncertainties in identifying and applying suitable design patterns while designing applications. Our goal is to investigate applications of design patterns in .NET Framework. Among the seven structural patterns described by Gang of Four (GOF), we have discussed five patterns from .NET perspective. As there is no official documentation available on the patterns used in the latest version of .NET Framework (version 2.0) currently, this study would be beneficial for .NET designers in understanding patterns behind the framework, which in turn would help them in applying relevant patterns while developing their aplications in .NET Framework.
Design Patterns provide generic, reusable designs that solve problems at the design level. A design pattern does not define code and is not specific to a given programming domain. Instead, it provides a proven, tested solution for a class of similar design problems. Design Patterns also lend common terminology that we can use to make our own designs easier to document and understand.
Patterns describe techniques that experts have abstracted from multiple specific solutions. Identifying and understanding patterns provide two essential benefits [6]. First, they introduce effective design strategies to less experienced designers, alleviating them from rediscovering these patterns using trial and error. Second they attach common names to ideas that we can readily use in conversation, design meetings, and documentation.
Design patterns are not created from theoretical examples. Experienced objectoriented designers recognize that certain object structures and interactions lend themselves more readily to maintenance and reusability than others. Just like architects and civil engineers define broad building concepts that apply at many levels, software designers assemble a set of patterns that they can apply to a variety of domains.
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.NET Framework is the Microsoft latest technology for developing enterprise-scale ASP.NET Web applications and high performance desktop applications. In addition Microsoft .NET Framework is a platform for building, deploying, and running Web Services and applications. It provides a highly productive, standards-based, multilanguage environment for integrating existing investments with next-generation applications and services as well as the agility to solve the challenges of deployment and operation of Internet-scale applications. The .NET Framework consists of two main parts: the common language runtime (CLR) and a unified, hierarchical class library that includes a revolutionary advance to Active Server Pages called ASP.NET, an environment for building smart client applications (Windows forms) and a looselycoupled data access subsystem ADO.NET
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