The need of SILVIA2001

FMV has given FOI an assignment to look at the need of the model SILVIA. This is the report. It is important that SILVIA is treated not as the one model that solves all the needs. There are needs of air defence models that SILVIA does not cover, neither should. Therefore it is important to look at all the needs and to decide what needs SILVIA should cover. There are some gray zones that SILVIA could be buildt to cover or be choosen not to. The need of air defence models should be met from more than one model of different levels. Today we do lack a model for system structure planning, i.e. models that cover not particular systems but types of systems on a higher abstraction level. There is also a need of models that cover the survival of the protected object. SILVIA is a tool to assess air defence systems on a technical level in tactical environment. The kernel is assessment of systems in a "real" environment. The model has during the past years gone through many cycles of development which shows that SILVIA is a living tool, but the years also show that SILVIA is not built for this constancy changing process that the need cause. I.E. takes to long time to make a simulation. The report covers some of the ways the development of SILVIA could take to make it a better model.