Information Technology Reference
In-Depth Information
11.3
SOFTWARE DESIGN FOR SIX SIGMA ROAD MAP
In Chapter 8, we learned about the ICOV process and the seven developmental
stages spaced by bounding tollgates indicating a formal transition between entrance
and exit. As depicted in Figure 11.2, tollgates or design milestones events include
reviews to assess what has been accomplished in the current developmental stage
and to prepare the next stage. The software design stakeholders including the project
champion, design owner, and deployment champion conduct tollgate reviews. In a
tollgate review, three options are available to the champion or his delegate of tollgate
approver:
Proceed to next stage of development
Recycle back for further clarification on certain decisions
Cancel the project
This is what I am talking about, which is to include this “Recycle back for further
clarification on certain decisions” in Figures 11.1, 7.2, and 7.3.
In TG reviews, work proceeds when the exit criteria (required decisions) are made.
Consistent exit criteria from each tollgate blend both software DFSS deliverables
Sasfied Entrance
Criteria
ICOV DFSS Process
Cancel
Gate n Exit
Criteria
Satisfied?
YES
No
Recycle to Gate n-1
Proceed to Gate n+1
No
FIGURE 11.2
DFSS tollgate process.
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