Data warehouse and data mining – neccessity or useless investment

The organization has optimized databases which are used in currentoperations and also used as a part of decision support. What is the next step? DataWarehouses and Data Mining are indispensable and inseparable parts for modernorganization. Organizations will create data warehouses in order for them to be usedby business executives to take important decisions. And as data volume is very large,and a simple filtration of data is not enough in taking decisions, Data Miningtechniques will be called on. What must an organization do to implement a DataWarehouse and a Data Mining? Is this investment profitable (especially in theconditions of economic crisis)? In the followings we will try to answer these questions.