Having access to an effective data warehouse dramatically increases your ability to make smarter decisions, faster. Without a data warehouse, if you want to do cross-domain analysis, you're stuck dedicating tremendous amounts of time and resources to combining and analyzing data across platforms. With a data warehouse, your entire company has a single location to ask and answer questions. However, data warehouse projects fails from time to time. Discuss in details why some data warehouse projects fail to meet the business expectations? Having access to an effective data warehouse dramatically increases your ability to make smarter decisions, faster. Without a data warehouse, if you want to do cross-domain analysis, you're stuck dedicating tremendous amounts of time and resources to combining and analyzing data across platforms. With a data warehouse, your entire company has a single location to ask and answer questions. However, data warehouse projects fails from time to time. Discuss in details why some data warehouse projects fail to meet the business expectations?