Augmenting Traditional Conceptual Models to Accommodate XML Structural Constructs

Although it is possible to present XML Schema graphically, such representations do not raise the level of abstraction for XML schemata in the same way traditional conceptual models raise the level of abstraction for data schemata. Traditional conceptual models, on the other hand, do not accommodate several XML Schema structures. Thus, there is a need to enrich traditional conceptual models with new XML Schema features. After establishing criteria for XML conceptual modeling, we propose an enrichment to represent the XML features missing in traditional models. We argue that our solution can be adapted generally for traditional conceptual models and show how it can be adapted for two popular conceptual models.