1. Issues to be considered

The following topics are agenda items for ORE Technical Committee discussions before the beta release.

1.1 Aggregation without enumeration

There is considerable interest in extending the ORE Data Model to handle the notion of aggregation without explicitly enumerating all of the Aggregated Resources. This would likely involve a URI templating mechanism.

1.2 Choice regarding external vocabularies

Should the ORE select or promote certain vocabularies as preferred or not?

2. Open Issues noted in specific documents

The following issues are noted in the current OAI-ORE specification and user guide documents and have yet to be resolved. Each section refers to a specific document and a particular issue may appear in more than one document.

2.1 ORE Specification - Representing Resource Maps Using RDF Syntaxes

2.1.1 Choice of RDF XML Profile

Should this specification say:

• Where an ORE Resource Map is serialised using RDF/XML, this profile of RDF/XML MUST be used; or
• Where an ORE Resource Map is serialised using RDF/XML, any of the conventions supported by the RDF/XML specification MAY be used; this profile is provided primarily as a guideline for Resource Map providers who are not familar with the RDF/XML format.

2.1.2 Additional Relationships in RDF XML

Need description of how to include Additional Relationships in the Resource Map.

2.1.3 RDFa Examples

Need fuller description of RDFa, examples?

2.1.4 RDFa Example URIs

Add some examples of URIs in RDFa.

2.1.5 Additional Relationships in RDFa

Need description of how to include Additional Relationships in the Resource Map in RDFa.

2.2 ORE User Guide - Resource Map Discovery

2.2.1 Links in HTML pages

HTML does not provide appropriateattributes in the A and IMG elements to link to a Resource Map as well as the target resource. This section suggests either the addition of extra attributes to the A and IMG elements (which would make otherwise valid HTML documents invalid), or re-purposing an existing attribute.

2.3 ORE Specification - Abstract Data Model

2.3.1 Definition of ore analogousTo

The definition of ore:analogousTo needs to be clarified.

2.3.2 Constraints on RDF Graph

There need to be some additional constraints on the RDF Graph expressed by a Resource Map, in addition to the stated connectedness. For example, the use of the predicates ore:describes and ore:aggregates should probably be limited to the single subgraph rooted in the node denoting the Resource Map, thereby preventing the expression of nested aggregations in a single Resource Map.