Formal Metadata Based Approaches

In this context, mention should be made of the open Office format introduced by Microsoft with Office 2007 [9] and known as ECMA standard 376. An Office 2007 document (suffix. docx) is essentially a container for around 12 XML-based documents (or parts) performing a variety of functions. One of these parts (core.xml) is used to define and store the document metadata or properties. An example populated with the same metadata as the previous HTML example is shown below. 

Equatorial Atoms in Square Pyramidal Molecules /dc title  

Highlighted above in bold is the attribute XSI of the last element, which defines a dafe and time datatype and is noted here in anticipation of fhe discussion of dafafyping as a component of Wikis (section 6). 

There is yet little experience about how doex documents might be populated with metadata and then queried using this information, or about how either the operating system, or third party tools might make use of fhis informafion fo sfruc-fure a doex collection according to its content. 

The type of metadata described above is a monodirectional descriptor, it merely declares that somewhere in the document it relates to can be found a particular type of data or information. It fails to provide an extensible framework for adding a confrolled context to that information. 

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