COMBINED TECHNIQUE REQUIREMENT ANALYSIS OF REQUIREMENT ENGINEERING OF DATA WAREHOUSE

Abstract

This research paper focuses on how to prepare an effective data warehouse with the use of requirements engineering. Earlier operational systems used for storage of data, helped us in making only day to day decisions, because they provided us with only the current data, which was not able to be considered appropriate enough to take crucial decisions. Thus, it raised the need of using Data Warehouse for storing all the data. As we know building of efficient Data Warehouse and its preservationincludes cleaning, extraction and filtering of data etc. This one is anexpensive and time overridingprogression, because this has to be constructed in advance of the requirements to be gathered. To overcome this problem, such a technique should be used, which will help in exploring and clarifying each requirement in detail having a meaningful consideration while constructing the Data Warehouse at an early phase. For this we have combined the known technique of ‘Requirement Analysis’ of date warehouse ‘Requirement Engineering’ with others techniques of the Requirement gathering of Data Warehouse i.e. first is ‘Interview’ method and second is ‘Survey Method’.