A conceptual data model can be expressed using a graphical notation, such as an entity-relationship diagram (ERD), or a textual notation, such as a data dictionary. Add your perspective ...

A common way to create a conceptual data model is to use an entity-relationship diagram (ERD). Add your perspective Help others by sharing more (125 characters min.) Cancel ...

With conceptual modeling in practice largely taking the role of preliminary sketching or scope definition, the issue becomes one of drawing the boundary between logical and physical modeling – the ...

The increasing usage of column-oriented NoSQL drives people to define methods to model the data structure of this technology. The data modelling methods require the support of tools or applications to ...

Data modeling advantage: The vendor offers a robust modeling tool that delivers visualizations of physical, conceptual and logical data structures. The platform can generate SQL scripts, thus ...

It is argued that ontologically clear entity relationship models can model the real world domains more accurately than ontologically unclear models. However, transformation of such models into the ...