Data warehouse is the main technology which integrates data from company operations. Business Intelligence with DW at its center, enables the company to extract very important information for making business decisions from these data. Implementation of these systems is a very expensive and long...

Due to their widespread use, Internet, Web 2.0 and digital sensors create data in non-traditional volumes (at terabytes and petabytes scale). The big data characterized by the four V's has brought with it new challenges given the limited capabilities of traditional computing systems. This paper...

As end-users work with increasingly complex technologies, it is important that these technologies be used to the fullest extent possible. Time is needed to learn how to use these new technologies and fit them to user tasks, but the fact that a user has gained experience does not mean that...