By combining the WBS with the OBS it is possible to create a responsibility matrix. Using the car assembly example given in Figures 12.1 and 12.5, the matrix is drawn by writing the WBS work areas vertically and the OBS personnel horizontally as shown in Figure 12.6.
By placing a suitable designatory letter into the intersecting boxes, the level of responsibility for any work area can be recorded on the matrix.
A = Receiving monthly reports B = Receiving weekly reports C = Daily supervision
The vertical list giving the WBS stages could be replaced by the PBS stages. The horizontal list showing the different departmental managers, could instead have the names of the departments or even consultants, contractors, subcontractors and suppliers of materials or services.
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What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.