The Encoded Archival Description (EAD) conforms to the formal SGML requirements and is a document type definition
(DTD) known as EAD.DTD.
Each such syntax is called a "document type definition
(DTD)." Each syntax consists of a set of generic codes ("tags") for coding a particular type of document, together with the allowable contents ("content models") and sets of attributes ("attribute lists") for each generis ("element").
The architecture represents a quantum leap forward over MISMO Versions 1.x and 2.x, which were based on extensible markup language (XML) Document Type Definition
Key Features at a Glance Extensibility Can convert documents and data into any valid XML Document Type Definition
(DTD) pr schema Support Works with all major versions of Microsoft Word Graphical Conversion definitions can be developed, modified, Interface and debugged through a graphical user interface Throughput A single or series of conversion definitions can be run on one or more flies Other Important Excellent integration with Microsoft Word.
XML-based integrated databases are separate databases that use a common DTD (document type definition
), which enables XML-enabled applications to query separate databases.
The comprehensive suite includes distinct modules for DTD (Document Type Definition
) creation and offers the flexibility of editing during the conversion process.
"It knows what sort of thing it found," says Phipps, "whether that's a document type definition
, metadata or an XML document.
The set of elements for a particular text or group of texts and the relationship among them is defined in a document type definition
The cornerstone of these efforts is the project to complete the MISMO Version 3 standards--a complete rework of the current XML document type definition
(DTD) transaction framework into XML schema, a more advanced architecture with significant technical enhancements over DTD.
Young then explains how to create a valid XML document and define the document's content and structure using either a Document Type Definition
(DTD) or an XML schema file.
They can also define more complex tag definitions in linked documents called DTDs (Document Type Definition
), or by more complex XML schemas, which describe the structure of data and allows document designers to label distinct data elements.
PDCC has converted the 1985 issues of 15 journal titles published by the American Psychological Association (APA) in accordance with the APA's proprietary SGML DTD (Document Type Definition