Continuity and comparability are important. Whenever possible, objectives should build upon Healthy People 2000 and those goals and performance measures already established. Objectives must be supported by sound scientific evidence. There are two types of objectives measurable and developmental. Measurable objectives .
Measurable objectives provide direction for action.
For measurable objectives, the current status is expressed with a national baseline. The baseline represents the starting point for action to move the Nation toward the desired end. The baselines use valid and reliable data derived from currently established, nationally representative data systems. These baseline data provide the point from which a 2010 target is set. Where possible, objectives are measured with nationally representative data systems.