eng Science and Education Publishing Journal of Computer Sciences and Applications 2328-725X 2017-04-17 5 1 17 24 10.12691/jcsa-5-1-3 JCSA2017513 article Mayada J. AlMeghari mayada@teachers.org, malmeghari@ptcdb.edu.ps 1 Information Systems Department, Faculty of Computers & Information, Cairo University, Cairo, Egypt Today, with the increase in the number of business web application users, the data size is obviously getting quiet huge. This data is composed together from integrated heterogeneous data sources to form Data Warehouse (DW). DW consists of critical and sensitive data used in many intelligent business models for decision support processes. Therefore, retaining data security for DW systems is a very important issue for researchers; also, it is the first priority for organizations. The current paper presents a new framework for implementing security issues in DWs named Data Warehouse Signature (DWS). The DWS framework ensures the security issues, which are Confidentiality, Integrity and Availability (CIA). In fact, this approach solves the security problems such as network overhead and data changing that occurs during transmission on Client-Server basis. The DWS approach achieves high performance by using parallel computing through a middleware named View Manager Layer (VML). Finally, this paper also presents the elastic architecture of the DWS framework with a vast applicability in multiple DW organizations depending on its network infrastructure. http://pubs.sciepub.com/jcsa/5/1/3/jcsa-5-1-3.pdf security issues data warehouse data encryption data integrity data availability hash function middleware