This paper aims to introduce a new artefact in cloud Computing discipline. This artefact is a Business Process Architecture (BPA) that presents and simplifies the field and generates an eye-bird view for its users. It also contains the core elements of cloud computing and identifies its main processes. The Riva BPA is nominated as an object- based BPA method in order to build this artefact. Riva's main fundamental step is finding the Essential Business Entities (EBEs) of the domain that we have agreed on and which is cloud computing. These EBEs are the cornerstones that present cloud computing discipline and are utilised to continue the development of a cloud Computing Business Process Architecture (CCBPA). EBEs are translated into Riva Units of Work (UOWs) and its dependent 1st and 2nd cut process architectures. The final CCBPA has been evaluated through the validation of its main elements by experts in the cloud computing domain. Eventually, the new CCBPA shows advantages in understa