Issue #4

This comment was added to the issue tracker regarding issue #4:

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There was some discussion about this issue which I was not party to.

However, the reason that a compliance model supports interoperability  
is that a formal understanding of what it means to comply to the RIF  
is *essential* to the succesful use of RIF, and hence to  
interoperability. The alternative to a formal compliance model is an  
informal one: i.e., that defined by what popular tools support.

The requirement was dropped, but I believe erroneously.

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Frank