Maintainability Allocation
You can use RAM Commander to perform top-to-bottom maintainability allocation. When allocating maintainability, use the following fields in the Tree Maintainability dialog box:
MTTRa  | 
allocated (required) MTTR of an item  | 
Complexity for Mct(a)  | 
weighing factor for item’s children intended for maintainability allocation  | 
See Maintainability Allocation paragraph earlier in this chapter for a theoretical discussion of how RAM Commander allocates maintainability to each child of a parent.