Avoid BI BS.
You don't always need a Ferrari to get to your destination. Don't focus exclusively on brand names as that can easily lead to buying more than you necessarily need. Your BI software needs to fit what you are looking to discover about your business. Before you go shopping, use the Business.com Checklist for Business Intelligence Systems to match your needs with software that best accommodates them.
Plan for your infrastructure.
What's your server and network capacity? What about the capacity of your vendor? This is particularly important for mobile applications, where users expect information to be available to them in real time. Equally important, of course, is that any business intelligence software you select should work with your existing infrastructure.
Don't get technical.
If a system requires a technical background to learn or use it, adoption will be limited to those with the technical know-how. Any system that requires contacting a technical support person to generate reports is going to lead to end-user frustration and low adoption rates. Many BI systems started out as something hacked together by IT people for IT people. If the intended users of your system are not IT people, look for a system that is easier to use.
Get a timeline.
BI systems are complicated by nature, since they usually involve the integration of information that used to be sectioned off, such as human resources and sales. It can take more time than you might imagine installing an infrastructure that can integrate these different components. Inquire about timelines from business intelligence vendors. In an open bidding process, look for a vendor who has a reputation of completing installations in three months or less as it might be worth paying more to get the job done on schedule.
Don't try to do everything at once.
Focus on one key area, get used to how the BI tool works (or doesn't work), and then gradually expand implementation based on evolving needs and what you've learned.