<?xml version="1.0"?><!DOCTYPE SystemDefinition SYSTEM "sysdef_1_4_0.dtd" [  
 <!ENTITY layer_real_source_path "sf/os/ossrv" >
]>
<SystemDefinition name="ossrv" schema="1.4.0">  
<systemModel> 
<!-- Common file for prebuild layers-->          
<layer name="os_layer">                        
<module name="ossrv">                             
<unit name="ossrv" unitID="mrtdo.ossrv" bldFile="&layer_real_source_path;/group" mrp="" />
</module>    
</layer>        
</systemModel>
</SystemDefinition>