After participating in the decisions that led to
initiation of the SCA, the manager has the responsibility of, monitoring the
progress of the analysis. To this end, a milestone schedule should be
established and systematically reviewed in relation to work performed. A
typical sequence of events--including the initial activities--is shown in
Figure 6. Any design problems discovered during the course of the analysis
should be reported immediately. Such information is typically documented in
the form of Sneak Circuit, Design Concern, or Documentation Error reports.
Timely reporting of such problems permits the manager to initiate early
verification and corrective action in the affected area.
Corrective actions resulting from SCA findings can
take several forms. The major intent, of course, is to eliminate any sneak
conditions that are detected. Typically, this can result in a change in
circuit design, operating procedures, or function labeling. As noted in Section 3.1
, the earlier such
changes are made, the less the impact on cost and schedule. Depending on when
the SCA is accomplished, the correction can vary from a relatively simple
drawing change in early development to a major engineering change during
production or operation. The important collateral results of the
SCA--detection of drawing errors and design concerns--similarly trigger
corrective actions whose magnitudes also depend on the system's development
In monitoring the analysis, the manager needs to ensure
not only that milestone events are on schedule but that all aspects of the
work are being performed in a comprehensive manner, with modifications and
updating wherever dictated by the findings. The checklist in Table 7 indicates
the types of questions that should be considered on a continuing
TABLE 7. CHECKLIST FOR MONITORING
- Is the analysis covering each of the agreed-to
partitions of the task?
- Are all agreed time intervals being analyzed, and do the existing
network trees show each interval?
- Are additional time intervals necessary to any area? If so, are
they being considered?
- Are all necessary reports being issued in a timely manner (Sneak
Circuit, Design Concern, Document Error) and is the customer being
briefed on each?
- Is action being taken on each report?
- Is any additional depth or area of analysis seen to be necessary,
as indicated by results