Total Force Manpower Management System (TFMMS)

Client: Navy Manpower Analysis Center (NAVMAC), Millington, TN

Project Statement

The Total Force Manpower Management System (TFMMS) is a classified mainframe manpower system that contains requirements, authorizations, and end strength data for Navy officer, enlisted, and civilian personnel. CACI was tasked to provide business process reengineering support to the Navy Manpower Analysis Center (NAVMAC) in Millington, TN. Primary objectives were: a) development of a SIMPROCESS “As-Is” simulation model to assess performance characteristics of TFMMS and b) keep the simulation model current by updating it on a quarterly basis with respective changes to the process/staffing level.
The business process reengineering (BPR) team followed CACI’s repeatable methodology for executing analysis of TFMMS. This included the initial interviews with NAVMAC management so that the client understood our approach and, more importantly, scope and bound of the analysis. The BPR team then worked with NAVMAC to outline a proposed interview sequence that included the management as well as staff. It was important to discuss the process with the people currently performing the work, as that allowed the team to get a view of the complications and problems being observed on a regular basis.
The SIMPROCESS “As-Is” simulation model was developed incrementally (after every session, the model was enhanced to reflect the latest information). This allowed the BPR team to validate and clarify some aspects of the model as its structure was taking shape. It also allowed process workers the opportunity to gather some metrics and provide them to the team on subsequent visits.
Results from the simulation model were validated with various levels of NAVMAC management. This ensured that the process was being captured accurately and at a sufficient level of detail to support the modeling of two “What-If” alternatives.

CACI Services Involvement

The CACI BPR team consisted of a technical lead, one simulation analyst and a customer liaison.
SIMPROCESS was used to construct simulation models.


CACI provided NAVMAC with one SIMPROCESS “As-Is”, two “What-If” simulation models, and a written report documenting findings from the model/personal research.
Performance results from the “As-Is” simulation model compared well to historical data validating the process flow (throughput time and count from model were in the order of less than a 5% deviation from historical data).
Performance results from the two “What-If” simulation models indicated a saving in throughput time and staffing costs.