I don't buy the unknown unknowns. Big system integration problems follow patterns, and an experienced tech will recognise them. The problem with any half-assed

I don't buy the unknown unknowns. Big system integration problems follow patterns, and an experienced tech will recognise them. The problem with any half-assed strategy is that people gloss over the knowns, which is fatal. First thing anyone should do on a large (actually any) project is to assess the current situation[1]. When you discover a big nasty piece of legacy you need to integrate with, you look at how it works. The rabbit hole must be followed to it's end, or something will bite you. Blaming unknown unknowns in IT is the same as telling the teacher that the dog ate your homework. https://www.wittenburg.co.uk/Entry.aspx?id=46870dcd-70cb-4ef8-98ed-91c94714fe03 https://www.wittenburg.co.uk/Entry.aspx?id=46870dcd-70cb-4ef...