“Investigating and implement the idea of ‘ModConsWest’ (Modelling and Constructionism with Web based E-Learning Semantic Tools)”
4.0 Semantic modelling Advantages:
• Economy of expression –operations are explicitly defined upon relationships, thus the semantics exist within the data model itself.
• Integrity maintenance- semantic models provide mechanisms for the definition of integrity constraints at the same time allow the user to view data on a level removed from the lower level structure.
• Modelling Flexibility: semantic models through their use of abstractions permit the user to view the data on many levels, thus providing the capabilities for modelling real world situation.
• Modelling efficiency: The designer does not have to implement at a low level, most semantic models containing built in elementary operations and constraints.
• Example of semantic modelling (RDF) can be found below:
Available directly from ( ausweb.scu.edu.au/.../refereed/hinze/paper.html )
“ Negotiating Multiple Semantic Models ” -
Created by: Lee Ediagbonya