Hi! I coudn't find the right place to ask this question, but I deadly need your help.

I would like to write reviews of several Agile tools that will help people to choose the best one tool according to their needs. 

Studies show that most successful projects were those that followed agile principles, proving that model-driven methods are not always the best when it came to managing changes, fast-paced project implementation, or even meeting market demands.

The concept of agile development is not new. However, many technologists still stick to the age-old notion that software development can be easily designed and the outputs predicted without giving much thought to the more dynamic factors of projects, such as communication lines, people, and change.

Project managers eventually realized that a lot of projects failed because of rigid requirements, faulty design, and the inability of project teams to adapt to change. For the most part, clients or end-users' requirements changed through the course of development lifecycles, that by the time applications were ready for deployment, the end products were a good degree different from what was initially planned. This would have been alright, except that towards the end of the development lifecycle, time and financial resources have overshot initial estimates by a good measure.