As described earlier, ITAM is a program, not a project, and will never end. ITAM also takes some time to implement and requires a commitment to continuous improvement. The time it takes to reach early maturity levels depends on multiple factors. These factors include the number of employees, the number of assets, the number of asset types, the geographic locations of offices, and then most important, the support of the organization from top to bottom.
The roadmap defines the program's direction as improvements are made over time. A roadmap should project out at least three years and even five years. Of course, the further out the roadmap goes, the fuzzier things get. The roadmap will change over time because, let’s face it, plans change! Therefore, the roadmap should be reviewed twice a year, with the first review being more of a check and the second review is an update to the roadmap. Each milestone on the roadmap should have a project plan that includes effort, cost, and resource requirements. To justify an ITAM staff and budget, you must demonstrate the need and the benefits.