What Makes Component Object Model Suitable for Distributed Software Development ?
Component Object Model or COM is the software development framework introduced by Microsoft in 1993. It is a broad term used to encompass the most popular technologies like OLE, ActiveX, COM+ and DCOM. COM makes use of binary interface and supports program component objects for easy and effective distributed software application development
Language Neutral Framework
One of the biggest advantages offered by the COM framework is that it offers language neutral software development. This means that the applications developed using this framework can be used in different environments and platforms, other than the one they were created in. So, you can expect machine independent compatibility in case of COM based applications.
Code Reusability
Another significant advantage of the COM framework is that objects once created for an application can be reused for other applications as well. The concepts like sub-object creation and inheritance allows the reuse of COM objects for various applications. So, you can expect a lot of efforts and a good amount of time being saved in developing the applications using COM.
Support Variety of Languages
COM, due to its binary interface capabilities, can support custom software application development using different types of languages. For this, a language has to understand and implement the binary based data types as well as interfaces. Any language fulfilling this requirement can be used with COM framework for software application development. In fact, the .NET framework languages can also be used with COM for application development.
Some Important Features
COM follows an object-oriented approach for developing distributed software applications. Here are some of the useful aspects of this framework that encourage its extensive use by companies involved in outsource software development:
- Class Factories are used to create objects in COM framework.
- COM Type Libraries are the helpful features that help the different objects and components to define themselves.
- Marshalling is an important concept in COM framework that enables remote referencing of objects.
- Threading in COM makes use of apartment model concept which allows easy method calling.
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