Abstract. Searching objects within a catalog is a problem of increasing importance, as the general public has access to increasing volumes of data. Constraint programming has addre...
Abstract. Many geographical applications need to model spatial phenomena with vague or indeterminate boundaries and interiors. A popular paradigm adopted by the GIS community for t...
Model fields are specification-only fields that encode abstractions of the concrete state of a data structure. They allow specifications to describe the behavior of object-oriented...
Most object-oriented languages offer a limited number of invocation semantics. At best, they define a default mode of synchronous invocation, plus some keywords to express addition...
ns to define the abstract modelling language that determines the structure of the models that are to be used a two-step meta-modelling approach turned out as most adequate. In the ...