An abstract element serving as the head of a substitution group. May be substituted by an valid object of substitution type DevelopmentActivity. Provides a set of objects available to all members of the stubstitution group. These include a statement of the desired outcome of the development activity, a summary of the process to be followed, recommended staff requirements for each staffing class, a statement of any addition resources (monetary, or other) that are required to complete the activity, and information on the debriefing process.