More Enduring Questions in Cognitive IS Research
In the April 2012 issue of the Journal of the Association for Information Systems, Michael Davern, Teresa Shaft, and...
Variations in Conceptual Modeling: Classification and Ontological Analysis
Conceptual models are aimed at providing formal representations of a domain. They are mainly used for the purpose of...
Superimposition: Augmenting Machine Learning Outputs with Conceptual Models for Explainable AI
Machine learning has become almost synonymous with Artificial Intelligence (AI). However, it has many challenges with one of the...
Support for modeling relationships in object-oriented databases
Modeling real-world applications typically consists of two parts: the representations of entities of interest, and the representations of relationships...
Cardinality constraints in semantic data models
Constraints are central to the notion of a semantic data model. How well a model captures constraints affects its...
Incoherence and subsumption for recursive views and queries in object-oriented data models
Object-oriented data models are being extended with recursion to gain expressive power. This complicates both the incoherence detection problem...
Extending OMT to support bottom-up design modelling in a heterogeneous distributed database environment
We present an extension to the object model of OMT to cope with bottom-up database design. By investigation, it...
Relationship of relationships and other inter-relationship links in E-R model
The concept of relationship has hitherto been defined as an association between entities. This definition is too restrictive and...
GRAQULA: A graphical query language for entity-relationship or relational databases
GRAQULA is a graphical language for querying and updating a database. One version of GRAQULA provides a user interface...
An entity-based approach to query processing in relational databases
An entity-based query interface to relational databases is developed. The interface combines some objectoriented features with the strengths of...
