The activity list is essentially an itemized documentation of
all of the schedule activities that are part of a particular project. These lists are typically (and ideally should be) very detailed and comprehensive, providing as many details as possible to make it as easy and quick as possible for a user to attain general, broad sheet information. Some specific categories of information that should be included within the activity list can include the title or brief description of the activity, the detailed description of the activity, the unique activity identifier, a list of project team members who may be assigned to that particular activity. The detailed description of each activity is essential in providing all project team members with a big picture perspective of what is taking place, what work needs to be performed, and what their role will be within that activity. The activity list should be compiled as early in the process as possible to assure that all team members have a chance to review it.
This term is defined in the 3rd and the 4th edition of the PMBOK.