LEAP ontology

Part of LEAP 2.0

Introduction
This ontology exercise is needed to clarify and establish reasonable consensus on the entities and relationships in the LEAP domain.

We are very fortunate in that several people well-known in the area have agreed to help. We will proceed by exchanging ontology models and constructive critique while steadily focusing on what the consensus is.

Competency ontologies are an important part of the overall model. It would be good to review, and learn from, any existing related ontology. (See that page for examples.) We can discuss these or similar models, with a separate page to discuss any one which people think is highly significant.

The ontology implicit in the current LEAP 2.0 pages will also be introduced for critique. This is at present mainly a tentative class hierarchy of the different portfolio-related resources that can be linked, but will also contain a class hierarchy of relationships (which may be very flat).

The objective, as far as I can see, is to produce an ontology with the following features.
 * A set of resource classes covering as many of the types of portfolio item as we can manage.
 * A hierarchy of the resource classes on the basis of inheriting attributes: if the attributes of one class are a subset of the attributes of another class, the one with fewer could be a superclass of the one with more.
 * A set of relationship predicate classes which can be used in conjunction with the resources.
 * If the relationship classes have hierarchical relationships, this will mean implication: a more specific relationship implies a more general one in the same branch.
 * A specification of which predicates can be used to relate which resources together.
 * The resources and predicates together should form the basis for instances representing any reasonable e-portfolio presentation.
 * Effectively, this means that all of a portfolio "archive" should be representable, ideally with no loss.

Please correct this if it is not right!

The emerging ontology
This space is for an expression of any agreed parts of the ontology.