How is a Phase Structured?

Phases and subphases
Each phase is used to reach specific goals. These goals are reached by executing activities and the result obtained from these. It is often advisable to group together several activities into subphases with relevant subgoals (stdSEM proposes such subdivisions in most phases).

Note: Refer to the "Phase Orientation" section for each phase. This contains important information on goals, mandatory results and possible subphases! - You can access each Phase Orientation by clicking the gray field containing the phase name on the phase overview page.

Preconditions
Every phase has preconditions. The phase can only begin if these preconditions are met.

Activities
Every phase has activities. The activities can be grouped together within the phase to form subphases.

Results
Each phase is characterized by results, which are obtained when executing activities.

Note: The overview page of each phase sets out the preconditions, activities and results of the phase. You can access the overview page by clicking the appropriate phase in the header.

Identifying phase elements
Preconditions, activities and results of a phase can be identified by a prefixed code which provides an unambiguous reference within the phase:

  • Digit 1 specifies the type: project control, technical, quality assurance
  • Digit 2 indicates whether this is a precondition (V), an activity (T) or a result (E)
  • Digit 3 is a consecutive number within the phase; this numbering is two-digit for subphases.

Example: pT2 in the Definition phase specifies project control activity number 2 (risk evaluation).

Note: The consecutive numbering does not suggest the sequence for executing the activities, nor does it imply the priority of preconditions and results! In general, however, these elements should be arranged in a more or less meaningful order in order to ensure an appropriate sequence in simple cases.


Siemens AG Österreich, Program and Systems Engineering PSE
Contact: stdSEM Webmaster
Last modified: 08/27/98 15:41
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