Progress in modular simulation environments

How each simulationist can design and implement software tailored for each particular simulation project is addressed by modular simulation environments. The requirements of such environments are derived from the needs of four distinct types of users. Inter-tool modularity deals with how data flows between a non homogeneous set of software tools that can be changed on an ad hoc basis. Both simulation specific and widely applicable software tools may be used. The organization and management of simulation inputs and results to achieve this goal is important. Intra-tool modularity has to do with supporting simulation project tasks in a modular fashion. Modular modeling is well established. Possibilities for modular animation and the modular use of widely applicable tools, specifically spreadsheets, are discussed. An example modular simulation environment is given.