An empty DCP file will have these settings by default.
All of these settings and more can be tweaked by using special deltaxml attributes. Full details can be found on Document Comparator Guide in the section on Customizing a comparison.
w3schools provides a great introductory tutorial about XML Schemas. There are currently just two schema (XSD) files in XML Compare’s
samples/dcp directory. You can choose in the DCP file whether you want validation against XML schema 1.0 or 1.1 by including the appropriate file as explained in a comment at the start of the DCP file. v1.1 has some additional constraints, improving your editing experience, and is preferred. However some editors that our customers use to change DCP files may not support schema 1.1. For example, with the oXygen XML Editor, versions from 14.2 onwards support scheme 1.1, see www.oxygenxml.com/xml_editor/whatisnew14.2.html
In most cases you can put your filter in the INPUT_A_PRE_TABLE or the INPUT_B_PRE_TABLE extension points for the input pipelines or the OUTPUT_FINAL extension point for the output pipeline as required.
In more complex cases, where you want custom table processing or filters to adjust the formatting, then you need to refer to the JavaDoc or get DeltaXML support
The Custom Filters section of the Document Comparator Guide, explains how to add XSLT filters to the pipeline, using a filter that creates a key from an xml:id attribute as an example
For more information about pipelines and the differences between DXP and DCP see here
For in-depth information about DXP start here.