CORBA26 — ExecutablePlacement definition

In the componentAssembly DTD the executablePlacement is defined as follow:

<!ELEMENT executableplacement
( usagename?
, componentfileref
, componentimplref
, invocation?
, destination?
, extension*
)>
<!ATTLIST executableplacement
id ID #REQUIRED
cardinality CDATA "1" >

It seems to me that the DTD should not enforce the componentimplref as this
might depend on the deployment And there is no reason the assembler should
know where the executable is going to be deployed. For example the
componentimplref should be different between a Solaris, a Linux or an NT
placement.

Therefore I would propose to make componentimplref optional (as it is in
homePlacement) and change the executablePlacement definition to:

<!ELEMENT executableplacement
( usagename?
, componentfileref
, componentimplref?
, invocation?
, destination?
, extension*
)>
<!ATTLIST executableplacement
id ID #REQUIRED
cardinality CDATA "1" >

see below