OBS/WBS Matrix

The organization breakdown structure and work breakdown struc­ture matrix are shown in Table (6.5). The OBS is in the horizontal row, and the vertical presents the organization.

From this table, every person in the organization has a number of cells that present the work breakdown structure. For example, the project manager will do all the stages, so the cost will be for all these activities, for the mechanical supervisor is allocated for mechanical work only and the civil supervisor is allocated to civil work and foundation work.