Define how the data should be presented by addressing the following questions:

• How does it need to be "sliced and diced"?
• What levels of detail and summary are required?
• What sequences and segmentations are required?
• What visual formats  will be used?
• What media will be used?
• Will the users be local or remote?

Ultimately, many other issues also need to be considered in the full design, including user interface specifications, data and access security, accounting standards and controls, and so on. Because there are a wide variety of tools available to extract and manipulate NAV data, we can start relatively simply and expand as appropriate later. The most important thing is to assure that we have all the critical data elements identified and then captured.