Mostly, these companies may be far away in other nations. So, in simple words, outsourcing is a business process by which companies contract out their non core activities as well as activities which doesn't generate revenue to specialists.

Through outsourcing, a company can concentrate on its core business activities and competencies. Capital expenditure on non core areas can be avoided by outsourcing. Nowadays, both nearshore and offshore outsourcing are available. Greater improvement in quality, productivity and importantly cost has surged the outsourcing market rapidly.

Outsourcing is also done by setting up the subsidiary company in another country where the running costs are low. Some of the most common outsourcing portfolios are customer service, human resource functions manufacturing of the components, tax compliance, training administration, benefits and compensation planning, certain accounting functions, computer programming services, transportation of products and many more.

Outsourcing is a multi billion dollar industry, especially in third world countries, as it provides jobs to numerous people. India, china, New Zealand, Romania, East Asian countries and eastern European countries are fore front runners as suitable places for outsourcing.

Business software is designed in such a way that it not only helps to measure the productivity but also to increase the productivity. Business software is classified into small, medium, and large matrix.

In small firms, accounting software or office suites are examples of business software. In medium business sector, the business software may vary from applications such as groupware, human resources software, accounting, productivity enhancing softwares and many more.

In large or matrix sector, the business software includes product lifecycle management, enterprise content management, and business process management. All of the business software are available with add on functions, compatibility functions to other third party software.

Software can be extensible so that there is complete separation between layers of separations and their behaviour. Due to this separation, redesigning of the interfaces and additional options can be created. Software interface is a computer language through which communication is computer programs are made possible. GUI and XUL are some of the most commonly used interfaces nowadays.

Extensions are usually extra interface, style sheet formats, java scripts, as well as other functions which are associated with default interface and it may replace or extend the functionality. Extensions are usually extra interface, style sheet formats, java scripts, as well as other functions which are associated with default interface and it may replace or extend the functionality.

It is therefore evident that software extensions are packages that can provide additional features which are not available early with the software, but when used is compatible to the software. Word-wise Firefox extension is an example of business software extension. Al though there are free add on for normal users, for the corporate customers, they provide some more options, and the extension is packaged suiting their business model.

However, developing business software is quite a complicated task for a company, as it demands lots of money and most sophisticated man power technical support. Nowadays, a lot number of packaged business software is available.

But, the requirements of the business software may vary from company to company. Outsourcing of business software extensions are done to other software development company for creating suitable business software extension for the company's need. The outsourcing companies usually come with a dedicated software development team, each of them with sound knowledge and expertise in various computer languages and platforms. Further, every company has different software platforms.

Outsourcing of business software extensions are increasing day by day due to the quest of companies to improve the productivity, saving time and simplifying the business model to get the competitive edge. Perhaps for this reason, outsourcing companies now have an ever increasing clientele list.