Without a BI strategy there is a huge risk to waste time and money through failed projects. With a pragmatic strategy however, you can make sure there are guidlines and projects are aligned. This helps in achieving the desired outcome and support company goals with your BI projects. Your strategy should be developed top down and all relevant stakeholder must be involved. Alignment with your corporate and your IT strategy is a key to success. Furthermore, you need to regularly check and adjust if needed.