Cloud computing is revolutionizing the way firms host software applications, store and access data, and manage IT infrastructure. Like any quantum leap in technology, the move to the Cloud brings both opportunities and challenges. A recent public Cloud adoption survey found that only 43% of respondents considered their most recent public Cloud migration an overall success. IT departments moving to the Cloud have a thousand decisions to make. All of them require good data and a solid grasp of business goals, current capabilities, and resources. They also need a simple, practical way to predict future staffing and skills gaps, present options to stakeholders and management, build support, and adjust plans when conditions and priorities change. In this white paper, Kate Armel explains where general purpose estimation tools can help you quickly create and revise estimates, establish repeatable estimation processes, sanity check plans against proven performance, and mitigate known – and hidden - migration risks.