XPDay day 2

OpenSpace day today!

Always tough to decide which session to attend. I ended up in keith braithwaite’s session on the use of bayes’ theorem to prove if there are enough tests for a system.

It was quite heavy for me that early in the morning but was very interesting no less.
As I understand Keith wanted to put out this idea he has of using bayes theorem to calculate the probability that, given an initial probability that the code is correct, how much will additional tests prove that the code is correct.
What I liked about this was the idea that we could quantify our confidence that code is correct. however we did discuss that our initial assumptions could be incorrect and subject to second order ignorance. establishing the initial probability can also prompt more discussion between developers and QA.
I think Mike would have loved this discussion ;-)

Just finished a lighting talk session. one of the talks that stand out highlighted that many in the agile community have strong ethical values, yet work for companies that don’t have ethical goals…food for thought