Die etablierte Dokumentationspraxis von Sammlungsobjekten in Museen erfolgt vorrangig auf Grundlage einfacher Datenfelder (Karteikartenmodell). Der hier verfolgte methodische Ansatz bezieht die Darstellung von Prozessen bzw. deren Ereignissen mit ein. Das CIDOC „Conceptual Reference Model“ (ISO 21127) wurde als Referenzontologie, das sog. „Erlangen CRM / OWL“ umgesetzt. Auf Basis dieser in OWL ...

This paper presents an architecture for managing database evolution when all the components of the database (conceptual schema, logical schema and extension) are available. The strategy of evolution in which our architecture is based is that of ‘forward database maintenance’, that is, changes are applied to the conceptual schema and propagated automatically down to the logical schema and to the...

This study explores the differences between conceptual data models designed by expert and novice data modelling practitioners. The data models are evaluated using a number of quality factors synthesised from previous empirical studies and frameworks for quality in conceptual modelling. This study extends previous studies by using practitioners as participants and using a number of different qua...

The focus of this paper is database design in the context of converting a conceptual data model into an internal representation. For a given conceptual data model, an access pro-le speciies statistical information about (retrieval and update) requests to be performed, while a data proole speciies a statistical characterization of the database contents. The corresponding time/space trade-oo and ...

Ionic motion through an open ion channel is analyzed within the framework of selfconsistent Brownian dynamics. A novel conceptual model in which the ions motion is coupled to the vibrations of the pore walls is introduced. The model allows to include into simulations an important additional mechanism of energy dissipation and the effects of self-induced strong modulation of the channel conducti...

Conceptual change is a popular, contemporary conception of meaningful learning. Conceptual change describes changes in conceptual frameworks (mental models or personal theories) that learners construct to comprehend phenomena. Different theories of conceptual change describe the reorganization of conceptual frameworks that results from different forms of activity. We argue that learners’ concep...

Undoubtedly, public spaces can be considered as an essential factor, which could contribute to urban arrangement, create and maintain a strong local center and enhance the quality of superior environment and the sense of citizenship. Moreover, integrity has always been the most basic structural qualities and one of the key principles of cities. Integrated urban spaces exhibit the integrated str...

A method for obtaining optimized relational representations of database conceptual schemas in an extended entity-relationship model is first proposed. The method incorporates and generalizes a familiar heuristics to obtain good relational representations and also produces, for each relational structure, an explanation indicating which concepts it represents. Then, a redesign method that, given ...