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This paper presents the meta level concepts for an object-oriented database model. Up to now, systems including a metaclass concept are either (i) only implicitly supporting the management of meta information (like SMALLTALK) which restricts the application of this concept, or (ii) explicitly giving unrestricted access to manipulate metaclasses which can(More)
The data management in the various components of CIM systems is still realized by individual databases where communication between the components is established via interfaces such as STEP. More efficiency, however, is achieved by an integrated approach which is based on an object-oriented database system. This would allow an integrated data management that(More)
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