Standard CMMI Appraisal Method for Process Improvement (SCAMPI)

1.5.1 Perform Readiness Review (continued)
Implementation
Guidance
A summary of the inventory of objective evidence and readiness to proceed
should be reviewed with the sponsor or his/her designee. If insufficient
objective evidence is available, the appraisal team leader may need to initiate
replanning in light of newly discovered constraints (i.e., insufficient data to
support the appraisal as planned). Refer to activity 1.1.2, Determine Appraisal
Constraints. The criteria for adequacy will depend on where the readiness
review occurs in the schedule, and the degree of verification versus discovery
that is being sought for the on-site phases of the appraisal.
More than one readiness review is likely to be needed. The first one should be
performed early in the planning phase, and the second should be performed
once the objective evidence has been gathered and the appraisal is ready to
start. This review may be conducted in conjunction with the team-training
event.
Thresholds for the sufficiency of data should be established as targets to be
met at the readiness review. For example, an 80% threshold may be used to
initiate replanning at the final readiness review. That is, the appraisal team
leader establishes an expectation with the sponsor that, if more than 20% of
the objective evidence is missing at the time of team training, the appraisal
will need to be replanned. However, the primary objective is reducing the risk
that there will be insufficient objective evidence to make the determinations
required by the appraisal plan in the time allotted.
The readiness review is a key event whose impact should not be
underestimated. Failure to adequately review the objective evidence available
and determine the impact on the appraisal plan can have grave consequences
for the appraisal team during the on-site period. This may include long hours,
exhaustion, extensive ad hoc data collection (discovery), or the inability to
achieve appraisal objectives within defined estimates and constraints.
CMU/SEI-2001-HB-001
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