Because metadata for use with MORPHO is stored in XML format, any of a large number of existing XML editors can be used to create and edit metadata documents. Any well-formed XML document can be used for storing metadata, but it is highly advised that DTDs or XML Schemas be used to create XML documents that can be validated against the DTD or Schema. In particular, it is most useful to use standard metadata grammars like EML because that will enable more powerful searches and automatic metadata manipulation.
Tools for metadata editing are built into the MORPHO application. Details of built-in metadata editors are described in the subtopics of this topic.