Be based on appropriate application of best practice assessment methods; and
Require detailed analysis only as necessary not as a prerequisite to decision making.
Operationally, the detailed assessment framework should provide:
Transparency of data, assumptions and gaps so that the basis for differentiating between technologies follows a clear, objective and traceable process;
Robustness and therefore reproducibility of results so that when applied by different users, the same set of proposals are assessed with similar outcomes;