Page 172 - Project+

FIGURE 6.1 Project organization chart

You may also present the work of the project in an organization breakdown structure

(OBS). This form of organization chart shows the departments, work units, or teams
within an organization (rather than individuals) and their respective work packages.

A resource breakdown structure (RBS) is another type of hierarchical chart that
breaks down the work of the project according to the types of resources needed. For
example, you might have painters, carpenters, and electricians as resource types on the
RBS.

Matrix-Based Charts

A responsibility assignment matrix (RAM) is a matrix-based chart that maps your
WBS elements to the required resources. Table 6.1 shows a sample portion of a RAM
for an IT development project. It lists the WBS identifier, the type of resource required,
and the number of resources needed for each skill set.

TABLE 6.1 Sample project responsibility assignment matrix

WBS identifier Programmer Tester Marketing Tech writer Server

10–1–1–1 1

10–1–1–2 2

10–1–1–3 3 1
10–1–1–4 4

10–1–1–5 1

Another type of responsibility assignment chart I like to use is called a RACI chart.
These are used to show the types of resources and the responsibility they each have on

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