***************************************** ***** SCHEMA DEVELOPMENT ***** ***************************************** Created: 2003-05-13 by Naomi Dushay Last Modified: 2007-06-08 by Katy Ginger University Corporation for Atmospheric Research (UCAR), ginger@ucar.edu Purpose: To provide a controlled vocabulary for the National Science Digital Library (NSDL) Type Vocabulary. 2007-06-08: A new type vocabulary is approved by NSDL Pathways. Thus, the reason for the update. 2007-06-08: The old vocabulary consisted only of 2 terms: Exhibit and News. To accommodate the new vocabulary that includes spaces between words (e.g. Assessment Material), the base restriction needs to change from xs:name to xs:string to allow for the spaces. 2007-06-08: This vocabulary now implies a hierarchy -- see comments at the end of this schema for the hierarchy. 2007-06-08: When using finer level terms like Portfolio, also use the broad-group term like Assessment Material. Allowable values for the element.