<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE SystemDefinition [
 <!ELEMENT SystemDefinition (systemModel)>
 <!ATTLIST SystemDefinition
  name CDATA #REQUIRED
  schema CDATA #REQUIRED>
 <!ELEMENT systemModel (layer+)>
 <!ELEMENT layer (block*|collection*)*>
 <!ATTLIST layer
  name CDATA #REQUIRED
  long-name CDATA #IMPLIED
  levels NMTOKENS #IMPLIED
  span CDATA #IMPLIED>
 <!ELEMENT block (subblock*|collection*)*>
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 <!ELEMENT subblock (collection)*>
 <!ATTLIST subblock
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 <!ELEMENT collection (component)*>
 <!ATTLIST collection
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  level NMTOKEN #IMPLIED>
 <!ELEMENT component (unit)*>
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  introduced CDATA #IMPLIED
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  supports CDATA #IMPLIED
  purpose (optional|mandatory|development) 'optional'>
 <!ELEMENT unit EMPTY>
 <!ATTLIST unit
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]>
<SystemDefinition name="Symbian^4" schema="2.0.1">
 <systemModel>
  <layer name="mw" long-name="Middleware" levels="generic specific">
   <block name="vpnclient" level="specific" long-name="VPN Client" levels="engine ui api">
<collection name="vpnc_plat" long-name="VPN Client Platform Interfaces" level="api">
<component name="vpnapi" filter="s60" long-name="VPN API" class="api">
<unit bldFile="/sf/mw/vpnclient/vpnc_plat/vpnapi/group"/>
</component>
</collection>
<collection name="vpnapiimpl" long-name="VPN API Implementation" level="engine">
<component name="vpnapi_impl" filter="s60" long-name="VPN Implementation">
<unit bldFile="/sf/mw/vpnclient/vpnapiimpl/group"/>
</component>
</collection>
</block>
  </layer>
 </systemModel>
</SystemDefinition>