Thanks for your interest, vitapablo. Can I ask what you mean when you say "CEP 80151". Is that an old Centre for Evidence-based Purchasing report, or something else?
Firstly, I have litle experience of the tendering/procurement process, but I have heard this before about specs being written to exclude all but a preferred bidder. Not sure I understand your points about 'fuzzy logic' and 'prohibited states'. I think you're saying that because we may not know all the potential solutions for our need, we might inadvertantly exclude something suitable because we would write a spec that didn't account for an alternative approach?
I think you might be expecting rather too much from a undergraduate engineers with little understanding of the healthcare environment. If I can get them to realise that there are considerations other than technical effectiveness that affect a decision to use/not use, then I'll be winning.
However, I will do my best in future to incorporate examples from the equipment management/procurement side, whereas I've been restricted in the past to national HTA-type examples.
Sue