View source for REFINES

The '''REFINES''' keyword is used to declare models as specialisations of more general 'base' models.

<source lang="a4c">MODEL vehicle;
   n_wheels IS_A integer_constant;
END vehicle;

MODEL bicycle REFINES vehicle;
   n_wheels :== 2;
END bicycle;

MODEL car REFINES vehicle;
   n_wheels :== 4;
END car;</source>

See also [[Object-oriented modelling]].




 [[Category:Syntax]]