Why to have Application Tracking System in organisation? Why not brick and mortar approach?

The major benefit of the ATS is that the database of the recruitment efforts will be in central location and it not limited to data mining and collection and it have the ability to automate the process of recruitment. it also helps to analyze and coordinate the recruitment efforts

Brick and mortar approach is difficult to compete with web based solutions or business .because the latter usually have lower cost and greater flexibility.