Architecting and designing : XML schema design : The XML diagram : Definition and symbol properties : General and parameter entities : XML general entity
  
XML general entity
A general entity is an entity that is used within the XML document itself, as opposed to a parameter entity, which is only referenced in the DTD.
See also General and parameter entities.
Definition properties
Text
Put the text that will be associated with the general entity in this field. When generating DTDs, do not put quotation marks around the text; XML Architect will put the proper quotations around the text.
Comments
Text in the Comments field will be generated into the schema file, and formatted like this:
<!--your comments go here-->
Processing Instructions
Processing Instructions are passed to an application. They typically contain a declaration of the target application and whatever instructions the application needs to process the XML schema.
Description
Text in the Description field does not get generated to a DTD, but is generated to a BizTalk schema. You may enter a description of the modeling element, or its use in the schema. The description can be included in a report. By default, it is included in HTML reports.
XML Schema
Specifies one and only one schema (see What is an XML schema?) that will be used throughout the diagram, and/or the XML Schema definition that elements and attributes are keyed to. Note that all elements and element attributes created on the diagram will default to this schema name. Attribute and element symbols may be keyed to one and only one schema. If the schema is renamed, all elements and attributes that use it will be rekeyed to the new name. “Names” may be the same as long as they are keyed to different schemas.
The attribute and element instances will use the diagram’s schema by default, however, this is not required. Element and attribute symbols using schema outside of the diagram’s will display with dotted borders.
See also
General and parameter entities