Never worked with professional-in-other-field types? Nothing is ever 100% specified, either initially or at any moment going forward. Best you can do is pick

Never worked with professional-in-other-field types? Nothing is ever 100% specified, either initially or at any moment going forward. Best you can do is pick highlights from the stream of desires and try to code to those, and expect to get it 'wrong' 100% of the time until its suddenly OK for any one of a hundred reasons. Or have someone suddenly cut the contract off and never finish. Good software without tests: not easy but can, rarely, happen anyway.