The time difference when working with India and China for the Western world allows work to be done round the clock adding a competitive advantage. Notable firms that are involved in development include Tata Consultancy Services, Infosys, Wipro, and Satyam.
There are several different approaches to software development. Some take a more structured, engineering-based approach to developing business solutions, whereas others may take a more incremental approach, where software evolves as it is developed piece-by-piece. There are significant advantages and disadvantages to the various methodologies, and the best approach to solving a problem using software will often depend on the type of problem.