Data analysis the combined process of data inspection, data cleaning, transformation and data modeling. Data analysis gives more useful results and mined data for decision making process in various business Industries like retail, banking and social domain. Data integration is the pre work for the data analysis, data visualization and data dissemination are closely linked with data analysis. Data analysis could be done on any of the structured, semi structured and an unstructured data. In fast paced and dynamic market, Data analyzed from any of the Data analysis tools being used for the following benefits § Market trend could be captured in the competitive market place.§ To understand the customer and their behavior.§ To minimize the operational inefficiency to zero level.§ Arrive at optimal business decision with confidence and avoid the bad decision.Identify the data and data sources which are clouding business horizon.