Abstract Type – All You Should Know
Author: Akhila Choudhary<!-- @page { size: 8.5in 11in; margin: 0.79in } P { margin-bottom: 0.08in } -->
Software development services in India take up numerous offshore software application development projects, which they expedite using features of Object Oriented Programming, including Abstract Type.
An abstract type is specification of a data type in terms of its values and operations such that
- The specification says everything about the data type so as to facilitate its future use; but
- It does not at all indicate or hint as regards how to implement the data type.
Therefore, an abstract type is where the programmer declares only the signature of a method (function/ operations), but does not define its body. For example, say the government of a country implements a law that makes it mandatory for all new vehicles to be Euro IV compliant, but it no where defines what all modifications are required to achieve Euro IV compliance for an individual manufacturer. In such a case, the government is declaring the signature (what to expect) but does not define the body (internal logic or how to do).
In software application development terms, an abstract type cannot be instantiated. Any entity wishing to inherit from the abstract type must either define its own implementation for the abstract type or explicitly make its class type as abstract.
For example, any vendor wishing to sell his cars in the market must manufacture cars inherently compliant with the government’s law of Euro IV. In the process, it would need to introduce its own customized modifications in the engine to achieve Euro IV compliance (that is, define its own implementation for the abstract type).
Offshore companies that outsource software development to software development services India expect cost effective and memory efficient software solutions in turn. And their vendor offshore software development company from India precisely delivers the expected using Abstract Type.
An abstract type renders the application and implementation of the abstract data type as two independent aspects. In other words, abstract type minimizes the source code and facilitates re-usability of code or changes in implementation of the code without escalating the cost.
About the Author:I am the webmaster at www.synapse.co.in - a offshore software development company in India offering numerous services, such as flash web development, flash scripting, customized applications for the iPhone,and website maintenance services.
Article Source: http://www.articlesbase.com/programming-articles/abstract-type-all-you-should-know-867013.html