A block is an [[afry_intelligent_scenario_modelling|AFRY Intelligent Scenario Modelling]] name for the components used in the construction of the [[mathematical model]]. Blocks can be visualized using the [[model screen#interaction matrix]] or [[model screen#graph|box diagrams]].

These are the most common blocks used in MERLIN-Expo:

  * [[Compartment]]
  * [[Discrete event]]
  * [[Expression]]
  * [[General variable]]
  * [[Lookup table]]
  * [[Min/max]]
  * [[Parameter]]
  * [[Running mean]]
  * [[Snapshot]]
  * [[Source/Sink]]
  * [[Transfer]]

====See also====

  * [[Mathematical model]]