<!ELEMENT SystemDefinition (systemModel?, build?)>

<!ATTLIST SystemDefinition

  name CDATA #REQUIRED

  schema CDATA #REQUIRED

>

<!-- all paths are relative to the root of the source -->

<!-- System Model Section of DTD -->

<!ELEMENT systemModel (layer+)>

<!ELEMENT layer (logicalset* | module*)*>

<!-- Kernel Services, Base Services, OS Services, Etc -->

<!ATTLIST layer

  name CDATA #REQUIRED

  levels CDATA #IMPLIED

  span CDATA #IMPLIED

>

<!ELEMENT logicalset (logicalsubset* | module* | unit* | package* | prebuilt*)*>

 <!-- Generic OS services, Comms Services, etc -->

<!ATTLIST logicalset 

  name CDATA #REQUIRED

  levels CDATA #IMPLIED  

  span CDATA #IMPLIED

  level CDATA #IMPLIED

>

<!ELEMENT logicalsubset (module* | unit* | package* | prebuilt*)*>

<!-- Telephony services, Networking Services, etc -->

<!ATTLIST logicalsubset 

  name CDATA #REQUIRED

>

<!ELEMENT module (component* | unit* | package* | prebuilt*)*>

<!-- Screen Driver, Content Handling, etc -->

<!ATTLIST module

  name CDATA #REQUIRED

  level CDATA #IMPLIED  

>

<!ELEMENT component (unit* | package* | prebuilt*)*>

<!-- units or packages -->

<!ATTLIST component

  name CDATA #REQUIRED

>

<!ELEMENT unit EMPTY >

<!-- must be buildable (bld.inf) -->

<!-- bldFile will soon be removed in favour of mrp -->

<!ATTLIST unit

  unitID ID #REQUIRED

  name CDATA #REQUIRED

  mrp CDATA #REQUIRED

  filter CDATA #IMPLIED

  bldFile CDATA #REQUIRED

  priority CDATA #IMPLIED

  contract CDATA #IMPLIED

>

<!ELEMENT package EMPTY >

<!-- like a unit, but not buildable -->

<!ATTLIST package

  name CDATA #REQUIRED

  mrp CDATA #REQUIRED

  filter CDATA #IMPLIED

  contract CDATA #IMPLIED

>

<!ELEMENT prebuilt EMPTY>

<!-- pre-built CBR component -->

<!ATTLIST prebuilt

  name CDATA #REQUIRED

  version CDATA #REQUIRED

  late (Y|N) #IMPLIED

  filter CDATA #IMPLIED

  contract CDATA #IMPLIED

>

<!-- Build Section of DTD -->

<!ELEMENT build (option* | target+ | targetList+ | unitList+ | configuration+)*>

<!ELEMENT unitList (unitRef+)>

<!-- e.g. common, beech, cedar, etc -->

<!ATTLIST unitList

  name ID #REQUIRED

  description CDATA #REQUIRED

>

<!ELEMENT unitRef EMPTY>

<!-- Reference to unit in System Model -->

<!ATTLIST unitRef

  unit IDREF #REQUIRED

>

<!ELEMENT targetList EMPTY>

<!-- e.g. DEFAULT_7.0S, TOOLS_7.0S, etc -->

<!ATTLIST targetList

  name ID #REQUIRED

  description CDATA #REQUIRED

  target IDREFS #REQUIRED

>

<!ELEMENT target EMPTY>

<!-- e.g. WINS, WINSCW, ARM4, etc -->

<!ATTLIST target

  name ID #REQUIRED

  abldTarget CDATA #REQUIRED

  description CDATA #REQUIRED

>

<!ELEMENT option EMPTY>

<!-- e.g. Keepgoing, SaveSpace, etc -->

<!ATTLIST option

  name ID #REQUIRED

  abldOption CDATA #REQUIRED

  description CDATA #REQUIRED

  enable (Y | N | y | n) #REQUIRED

>

<!ELEMENT configuration (unitListRef+ | layerRef+ | task+)*>

<!-- 7.0s, 8.0a, 8.0b, cuskit, etc -->

<!ATTLIST configuration

  name ID #REQUIRED

  description CDATA #REQUIRED

  filter CDATA #REQUIRED

>

<!ELEMENT task ( unitListRef* , (buildLayer | specialInstructions))>

<!ELEMENT unitListRef EMPTY>

<!-- Reference to unitList -->

<!ATTLIST unitListRef

  unitList IDREF #REQUIRED

>

<!ELEMENT layerRef EMPTY>

<!-- Reference to named entity in the model, usually a layer -->

<!ATTLIST layerRef

  layerName CDATA #REQUIRED

>

<!ELEMENT buildLayer EMPTY>

<!-- bldmake, abld export, etc -->

<!ATTLIST buildLayer

  command CDATA #REQUIRED

  targetList IDREFS #IMPLIED

  unitParallel (Y | N | y | n) #REQUIRED

  targetParallel (Y | N | y | n) #IMPLIED

>

<!ELEMENT specialInstructions EMPTY>

<!-- BootStrap -->

<!ATTLIST specialInstructions

  name CDATA #REQUIRED

  cwd CDATA #REQUIRED

  command CDATA #REQUIRED

>