Parts II, III, and IV each explore a different, potentially agency cost-minimizing mechanism of secrecy. Each Part describes the mechanism and its ideal implementation.
The proposed RMC solution is based on a layered architecture and a set of RMC mechanisms allowing for distributed development and for minimizing redundancy, inconsistency, and maintenance cost.
In addition, the cost of application maintenance is reduced by minimizing the scope of the impact of any changes to the application — assuming that scope can be determined.