220 Project ManagementFigure 11-4 illustrates the key documents that should be
created as part of the planning process.
Work Breakdown Structure.The Work Breakdown Structure
(WBS) is perhaps the most foundational planning document;
just about every other planning document is an extension of
the WBS. The WBS lists and organizes into logical subgroups
all of the work (activities) required to execute the project.
Network Diagram. Also called Logic Diagram, the Network
Diagram depicts the sequence of the activities. It’s the natural
starting point of the scheduling process and it’s a critical docu-
ment in schedule development.
Project Control Schedule (Gantt Chart).The Project Control
Schedule is a time-scaled bar chart. It uses the logic developed
in the Network Diagram, considers the length of time it takes to
execute individual activities, factors in resource availability, and
places everything into calendar time. It’s the document of
choice for helping the team focus on what needs to be done and
when. A Project Control Schedule is used primarily as an inter-
nal control document for the project team and some stakehold-
ers. Progress evaluation, variance calculation, and continuous
forecasting are all done using the Project Control Schedule.- Responsibility Assignment Matrix.The Responsibility
Assignment Matrix (RAM) is a two-axis chart that shows
Network
DiagramProject
Control
ScheduleProject
Budget“Baseline”
Project PlanTo
Execution
PhasePotential
Problem
AnalysisResponsibility
Assignment
MatrixSchedule
Estimating
WorksheetsCost
Estimating
WorksheetsWork
Breakdown
Structure
Figure 11-4. Key documents in the project planning process