[swhipple]

I think this may be the report [1]? It seems that their P1 did not meet the standards, due to miscommunication -- not language incapability, but they were able to correct it in P2:

> It happened that some modifications and extensions to Reference 1 were agreed to at the experiment kickoff meeting at NSWC. Dr. Jones and Dr. Hudak were not informed of those extensions until after the completion and review of the initial draft of Prototype 1. [...]

> Prototype 2: We believe that our Prototype 2 will be most comparable to the prototypes prepared by the other teams. This prototype satisfies all mandatory requirements of the problem as defined in References 1 and 2, and also incorporates generalizations to support anticipated future requirements. To accomplish this task, the original author of Prototype 1 made a number of modifications and enhancements requiring about five hours [...]

P1 and P3 solutions are attached in appendices, along with some others.

[1] http://www.cs.yale.edu/publications/techreports/tr1031.pdf

[the_af]

Awesome! I've been looking for a followup to the previous paper, with no success. Thank you for posting it!

I skimmed through the paper and I don't see where they state the P1 prototype (or any prototype, for that matter) was "disqualified", as user mpweiher claimed. The authors continue to state they found Haskell and FP to be great for rapid prototyping... and in my opinion, anyone who's ever written a prototype will agree that making changes at short notice is expected :) And Haskell turned out to be very suitable for this. I think they were right to call it a success.

More importantly, that they were able to successfully (and with relatively little effort) generalize and extend the prototype shows that it was indeed extensible. That they were able to provide three prototypes is also telling, because even if some were delivered after the experiment, they were still made in a very short time. Imagine managing this feat in C++ or Ada!

It'd be interesting to see how many of the other teams which completed the assignment also had to implement some changes after the review.