Before a higher level of review can be attempted, the steps of all previous levels must be completed. This is done because of information dependence. Level 1 has some general checks that are not checked in Level 2. Thus, if a Level 3 review is requested, Level 1 steps and Level 2 steps must be completed prior to beginning Level 3 steps. This study emphasizes that higher levels of review require greater resourcescost and time.
Costs vary for different review levels.
For example, a Level 5 review may require personnel with Ada experience, the skills of an algorithm analyst, or a statistician to perform risk analysis. Level 4 may require CASE tools and the expertise to perform this process. Items on the checklist that were not met. Action officer or point of contact responsible for corrective actions regarding items identified. Milestone schedule with target dates for corrective actions identified to be completed.