<chapter id="record-model">
- <!-- $Id: recordmodel.xml,v 1.7 2002-10-11 09:05:09 adam Exp $ -->
+ <!-- $Id: recordmodel.xml,v 1.8 2002-10-17 08:10:08 mike Exp $ -->
<title>The Record Model</title>
<para>
kind of structured data. Each record in the system is associated with
a <emphasis>record schema</emphasis> which lends context to the data
elements of the record.
- Any number of record schema can coexist in the system.
+ Any number of record schemas can coexist in the system.
Although it may be wise to use only a single schema within
one database, the system poses no such restrictions.
</para>
<para>
The record model described in this chapter applies to the fundamental,
structured
- record type <literal>grs</literal> as introduced in
+ record type <literal>grs</literal>, introduced in
<xref linkend="record-types"/>.
<!--
FIXME - Need to describe the simple string-tag model, or at least
<screen>
<Distributor>
- <Name> USGS/WRD </Name>
- <Organization> USGS/WRD </Organization>
- <Street-Address>
- U.S. GEOLOGICAL SURVEY, 505 MARQUETTE, NW
- </Street-Address>
- <City> ALBUQUERQUE </City>
- <State> NM </State>
- <Zip-Code> 87102 </Zip-Code>
- <Country> USA </Country>
- <Telephone> (505) 766-5560 </Telephone>
+ <Name> USGS/WRD </Name>
+ <Organization> USGS/WRD </Organization>
+ <Street-Address>
+ U.S. GEOLOGICAL SURVEY, 505 MARQUETTE, NW
+ </Street-Address>
+ <City> ALBUQUERQUE </City>
+ <State> NM </State>
+ <Zip-Code> 87102 </Zip-Code>
+ <Country> USA </Country>
+ <Telephone> (505) 766-5560 </Telephone>
</Distributor>
</screen>
Each element is terminated by a closing tag - beginning
with <literal><</literal>/, and containing the same symbolic
tag-name as the corresponding opening tag.
- The general closing tag - <literal><</literal>>/ -
+ The general closing tag - <literal><</literal>/> -
terminates the element started by the last opening tag. The
structuring of elements is significant.
The element <emphasis>Telephone</emphasis>,
tag with the same <emphasis>class</emphasis> and
<emphasis>value</emphasis> settings, or by the
appearance of another, normal tag. In other words, the end-tags for
- the variants used in the example above could have been saved.
+ the variants used in the example above could have been omitted.
</para>
<para>