Make system name mandatory for classification requirement

[pasi-paasiala]

According to this example it is possible to create a classification requirement that is accepted if an object has any classification. That is, it is possible to have this kind of requirement:

            <requirements>
                <classification minOccurs="1" maxOccurs="1" />
            </requirements>

My interpretation of this is that if an object happens to have exactly one classification of any kind, the requirement is met. I don't see that this is a feasible case. I'd propose to make the system obligatory in classification.

[CBenghi]

This is a valid point, but is also flagged from the audit tool, so I'm closing the issue as we will solve all audit issues ahead of 1.0.

[CBenghi]

Added to the schema discussed today in the call