Upgrading distributed agile development

Agile software development teams are normally collocated a matter that enhances the implementation of its principles. In the growing world of software industry it is better to get benefit of markets, skills and reduced cost which are distributed all over the world. This can be achieved by upgrading the practices of agile software development to be in harmony with distributed software development and keeping its intrinsic values from being destroyed or even distorted in spite of geographical barriers, different cultures and different time zones. This paper studies an approach based on sequential development of the software to help in dealing with the challenges that face agile methodology when it is combined with distributed software development.