The goal of this thesis is to explore the cloud computing, manly focusing on database management systems as a cloud service and to propose general scope breakdown structure of a project for migrating company’s database to a cloud based solution. It will focus on explaining the key deliverables to migrate to a database in the cloud and illustrate the tasks required to fulfill each part of the project. The potential challenges and risk that must be taken in consideration are discussed and a comparison between some of the current available solutions of SQL and NOSQL based database management systems as a cloud service, considering the advantages and disadvantages of the cloud computing in general and the common considerations is provided.