Whereas the UK Land model provides a generic representation of the business processes present within land systems, the US AAAV model demonstrates how commonality between OSCAM models can be used to develop bespoke, program-specific tools.

Through the process of workshops comprising subject matter experts and experienced cost analysts, the structure and behavior of these land based systems have been defined prior to translation into a simulation model at the quantitative level.

Data Management Tools for both OSCAM Land and the OSCAM AAAV model have also been developed, enabling maintenance philosophies to be applied to component level data within a work breakdown structure prior to simulation.

In addition, both models have undergone a rigorous verification and validation process in order to build confidence that they can be trusted when used properly with valid input data.

Developed for the US Marine Corps Advanced Amphibious Assault Vehicle (AAAV) Program Office, OSCAM AAAV is a program specific model, building upon the fundamental structure of the OSCAM Land model.
Prior to development of the model, it became evident that the process used by the UK Army to support its equipment was broadly similar to that used by the US Marine Corps. Initial development of OSCAM AAAV was therefore based on the existing OSCAM Land model, providing a sound basis for a model tailored to the needs of the AAAV program.

HVR-CSL identified key areas where the processes associated with the AAAV program differed from those of the existing UK Land model, therefore defining the overall scope of the problem and understanding the processes that needed to be represented.

Following translation of their current cost estimates into OSCAM, the AAAV program office plan to employ the tool to provide life cycle cost estimates by means of what-if drills and trade-off studies across varying scenarios.

Developed for the Defence Procurement Agency's Pricing and Forecasting Group (Cost Forecasting), OSCAM Land has been employed on a number of Ministry of Defence programs, including Future Combat Light Vehicle (FCLV), where it is being used to determine the impact of Contractor Logistics Support trade-off studies. In addition, the Terrier program is considering use of the Data Management Tool in order to receive component level maintenance data from product suppliers, prior to performing scenario analysis. Use of OSCAM has enabled scenario dependent modeling of O&S costs, using not only user defined and historic data, but also through the amalgamation of data produced in third party staffing level, logistic support and spares modeling tools.