Cloud computing enables IT systems to be scalable and elastic. One significant advantage of it is users no longer need to determine their exact computing resource requirements upfront. Instead, they request computing resources as required, on-demand. This paper is written to introduce a framework specific for large public sector entities on how to migrate to cloud computing. This paper can then be also be a reference for the Organizations to overcome its limitations and to convince their stakeholders to further implement various types of Cloud Computing service models.