Information Technology Reference
In-Depth Information
2.4.1 Life Cycle Stages
Figure 2.4 illustrates how the project begins with a preliminary investigation.
Then the analysis, design, and preliminary construction stages are executed in
an iterative manner for each phase until that phase receives user approval. Then,
the two fi nal stages complete the project. This entire process represents the fi rst
cycle in the life of the system being developed. The next releases of the system
will follow the same process paths to produce the second-third, and fourth cycles
in the life of the system. The life cycle is not considered complete until the system
is sunset.
Preliminary
investigation
stage
Phase 1
Phase 2
Phase
n
Analysis stage
Analysis stage
Analysis stage
Design stage
Design stage
Design stage
Design stage
Preliminary
construction
stage
Preliminary
construction
stage
Preliminary
construction
stage
Final
construction
stage
Installation
stage
Figure 2.4
PDM stages and phases
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