2 management - School of International Business and ...

Wolfgang Cronenbroeck
It is defi nitely recommended in practice to cleanly separate effort into person-days (PT) and du-
ration in time units (e.g. in days).
No. Process estimated effort (PT) number of employees Duration (T)
1 Work packet 27
1.1 Create a specifi cations document 5 1 5
1.2 Produce a surface prototype 6 1 6
1.3 Create a model 16 2 8
Classifi cation relationships
Figure 21 | Procedural duration for the three individual procedures from Fig. 20
The following types of interdependencies are possible:
– Normal sequence
The previous procedure must be completed before the follow-on procedure begins.
– Beginning sequence
The procedures have the same start time.
– Ending sequence
The procedures have the same ending time.
Fig. 22 shows that the procedures create a specifi cations document and create a model must fi rst
be completed before the surface prototype procedure can be started
Scheduling
Figure 22 | Dependencies for the three individual procedures from Fig. 21
Scheduling takes place by setting the start date for the fi rst procedure (1.3.1).
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