The source directory is broken doen into seven folders, five for modules, plus core functionality and tools to build new modules:

core/ - All of the core code required for any MABE run tools/ - Extra tools to simplify building MABE modules config/ - Configuration scripting language.

orgs/ - Default organisms available for MABE runs

evaluate/ - Modules that evaluate organisms in a run, using any metrics. select/ - Modules that manage selection/reproduction mechanisms. placement/ - Modules that organize where newborn offspring should be placed. analyze/ - Modules that collect, process, and store population data. interface/ - Modules thar provide a user interface for MABE. schema/ - Extra Modules that control other aspects of MABE runs.

An ORGANSIM is a single agent in a MABE run. A POPULATION is a collection of organisms, which may all be defined individually. A WORLD maintains one or more populations of organisms an evalutation technique (its environment")

The dynamics of EVOLUTION are defined by a combination of an evaluation module (i.e., a world/environment) for how their phenotype will be assessed, and a selection module (i.e., a selection scheme) to determine how that phenotype will influce and organism's ability to move on to the next generation.

Finally, DATA COLLECTION is defined by a set of analysis modules that monitor a population throughout the evolution process.

Plans: Organisms should be defined by a controller module (i.e., a brain) to handle how they process data, and a representation module (i.e., a genome) for how that organism is stored and mutatated.