after its emergence, the web 2.0 has affected all areas of new technology. A large number of original concepts and innovative applications continue to appear every day, such as social networks, blogs, etc, which has crowded the web by a large amount of data, variable and characterized by an impressive creation speed. We call them big data and which we can consider as a very rich and interesting basis for decision-making. Cloud computing is considered as a fast-growing technology which is increasingly becoming an important tool, especially in the business field. The relationship between big data and cloud computing is not novel, many organizations, especially enterprises opted for this combination to support the data processing and management since the cloud computing constitutes a very useful tool to process data as large data sets. However, when we speak about decision support databases, in particular the data warehouse which constitutes the company's gold mine, a large number of enterprises prefer, for safety reasons, to keep it at hand and under control. To resolve this problematic, we propose in this paper a model that allows us to exploit the benefits of the cloud computing, ensuring the data integrity and consequently the big data security in the cloud
