Abstract: A method for providing access to application data items of an application program, said application data items being contained in a plurality of interconnected data objects processed by said application program, comprises the steps of receiving a request related to at least one of said application data items, said request referring to a data object of said plurality of data objects, fulfilling said request with respect to said data object referred to by said request, and if said request concerns at least one other data object of said plurality of data objects, forwarding said request to said at least one other data object for further processing of said request. A computer program product and an apparatus comprise corresponding features. The invention provides a way of accessing application data items that is very flexible and can in particular be used with complex application data structures comprising a plurality of interconnected data objects.

Abstract: In a method for automatically generating, by a CAD program, a drawing symbol in a drawing, an attribute object is created, said attribute object representing an attribute that signifies at least one property of at least one entity of said model, said attribute object is associated with a model data structure representing said model, and said drawing is generated, said drawing showing said entity of said model at least partially and further comprising a drawing symbol that represents said attribute. A CAD computer program product and an apparatus comprise corresponding features. The invention provides integrated support for attribute data items that relate to different types of entities of a model processed by the CAD program.

Abstract: A method for providing access to application data items of an application program, said application data items being contained in a plurality of interconnected data objects processed by said application program, comprises the steps of receiving a request related to at least one of said application data items, said request referring to a data object of said plurality of data objects, fulfilling said request with respect to said data object referred to by said request, and if said request concerns at least one other data object of said plurality of data objects, forwarding said request to said at least one other data object for further processing of said request. A computer program product and an apparatus comprise corresponding features. The invention provides a way of accessing application data items that is very flexible and can in particular be used with complex application data structures comprising a plurality of interconnected data objects.