NEW ISSUE: Possible duplicate functionality offered by constrainingTypeand component

[Anish Karmarkar <Anish.Karmarkar@oracle.com>]

Title: Possible duplicate functionality offered by constrainingType and 
component

Description: constrainingType was created to allow for the top-down use 
case. A constrainingType, unlike a componentType, is independent of the 
implementation. But the schema for component has minOccurs="0" for 
<implementation>. A component without an implementation is very similar 
to a constrainingType, in the sense that it specifies the shape (in 
terms of references, services and properties), which is independent of 
the implementation. Given this do we need a separate syntactic structure 
for constrainingType?

Proposal:
none right now.

-Anish
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