Seyede Maryam, Seyed Khamesi, Amir Hooshang Tajfar, Cloud Sourcing Challenges in it Projects, Asian Journal of Information Technology, Volume 15,Issue 11, 2016, Pages 1879-1883, ISSN 1682-3915, ajit.2016.1879.1883, (https://makhillpublications.co/view-article.php?doi=ajit.2016.1879.1883) Abstract: However, organizations gradually found that using outsourcing activities and IT projects can focus on their key functions and core activities by the growth of cloud computing and providing services (Software, hardware, infrastructure, network, platforms and business processes) in the context of the clouds, the question is whether a new generation of outsourcing “Cloud sourcing”can be replaced its traditional models? Although previous studies regarding cloud services have described the various benefits of this model; in this studies, major challenges about cloud services and how to interact with services providers is claimed. Some of these challenges are composed of security, information confidentiality and standards and etc. This research describes the concept of cloud sourcing and identifying its challenges, also investigating its differences with the traditional outsourcing. Eventually more efficient management of the outsourcing model is recommended by using the previous research and the introduction of appropriate service level agreement. Keywords: Bone marrow;outsourcing;cloud service provider;service level agreement