<?xml version='1.0' encoding='utf-8' ?>
<preface xml:id="KSRef.Prerequisites">
  <title>Prerequisites</title>
  <abstract>
    <para>There are 2 prerequisites you may need to learn before thoroughly going into Knowledge as follows:</para>
    <itemizedlist>
      <listitem>
        <para>
          <emphasis role="bold">
            <ulink url="../../reference/html/GateInReferenceGuide.html">GateIn
              Reference Guide
            </ulink>
          </emphasis>
        </para>
      </listitem>
      <listitem>
        <para>
          <emphasis role="bold">
            <ulink url="http://opensocial-resources.googlecode.com/svn/spec/1.1/Social-Gadget.xml">OpenSocial Core Gadget Specification v1.1</ulink>
          </emphasis>
        </para>
      </listitem>
      <listitem>
        <para>
          <emphasis role="bold">
            <ulink url="../../reference/html/chapter-eXoWS.html">WebService</ulink>
          </emphasis>
        </para>
      </listitem>	  
    </itemizedlist>
  </abstract>
</preface>