OLE Instance Document-V9.1

1. Description

The OLE Instance document is a container for recording holdings and item information for a bibliographic record. Even though there is a standard for MARC Holdings (which has often been loosely followed), there isn't one for items and depending on the vendor systems, these are stored in different ways. OLE Instance defines a standard for storing holdings/item information in three main sections as described below.

2. Main Sections of the OLE Instance Document

1. oleHoldings: This section records "general" holdings information in a format specific to OLE.
2. sourceHoldings: This section represents "specific" holdings information entered according to some standard external to OLE. Examples are MARC holdings, MODS holdings or any other format specific holdings.
3. items: This section records information about 1 or more items.

   For a given bibliographic record, only one of either oleHoldings or sourceHoldings can be used as the main holdings record. OLE will not support usage of both for a given record as that leads to overhead of managing data consistencies between the two sections.  If an OLE Instance is initially created using oleHoldings, a staff user will be able to click a button in order to convert the oleHoldings to sourceHoldings via a mapping from one to the other.
   As a general policy, Institutions perhaps would stick with using either oleHoldings or sourceHoldings for capturing the holdings information and thats a decision that would be made before the data migration stage.

3. Document Explained

Coming soon!

4. Schema

Detailed information about the OLE Instance schema and the various parts.

5. Sample XML

6. Individual Data Elements - Details

7. Revised Editor

Coming soon!

8. Storage

The OLE Instance document will be stored in ole-docstore in three separate documents namely, instance, holdings and items. Each of the documents gets a unique identifier generated by ole-docstore (Apache Jackrabbit).