EuroSim Mission Definition Language

Home Contact News

Applications Products Services Support About EuroSim

Features

EuroSim Mission Definition Language
The Mission Definition Language (MDL) is a simple yet versatile meta-language for simulation scripting. Actions can be written in a limited free-text, or 'C' type language.

It has all the facilities expected of a programming language, including if-statements, for-loops, global and local variables, and access to the data items in the model's data dictionary (so called 'API' data variables). Direct simulation control commands can also be used in the language.Actions written in MDL can be used to:

record API data variables at a specified frequency to file;
input data values (ie. writing to API variables) as a stream of stimuli data representing some external input or state change;
monitor API data variables as a number or in a graph during the execution;
change the value of an API data variable/parameter;
change the simulation execution state (eg. request a pause when a particular state is reached);
trigger the (immediate) execution of a task;
print information to the test conductor console;
carry out combinations of the above.

Actions can be triggered directly during the execution run by the Test Conductor, or conditions can be defined which are automatically checked during the run. Conditions for automatic checking can be based on:

API data variables reaching a certain value (or range);
simulation time being a specified value (or range);
execution state transitions;
combinations of the above.

Some examples of conditions and actions written using MDL follow.

Case