Metadata Mapping

ABCD records are stored in ISIS format (Fields/Subfields), but OAI harvesters expect XML (Dublin Core, MARCXML). The Mapping layer handles this translation.

The definition files are located in isis-oai-provider/map/.

1. The Structure

For each format (e.g., dubcore), you need two files:

1. dubcore.i2x: The XML structure definition (ISO-2709 to XML).
2. dubcore_dc.pft: The ISIS formatting script to extract data.

2. Editing the PFT (_dc.pft)

This is where you map your tags to Dublin Core fields.

• File: map/dubcore_dc.pft (or marc_dc.pft).

Example Logic: If your database uses Tag 245 for Title and Tag 100 for Creator:

/* Map Title to dc:title */
if p(v245) then
    '<dc:title><![CDATA[', v245^a, ']]></dc:title>'/
fi,

/* Map Author to dc:creator */
if p(v100) then
    '<dc:creator><![CDATA[', v100^a, ']]></dc:creator>'/
fi

CDATA Sections

Always wrap your content in <![CDATA[ ... ]]> to prevent special characters (like & or <) from breaking the XML syntax.

3. Supported Formats

The module comes with pre-configured maps for:

• oai_dc (Dublin Core): The mandatory minimum for OAI-PMH.
• marcxml: Rich metadata for library exchange.

To enable a format, ensure it is listed in oai-metadataformats.php.