[hugey010]

#3 is very true, but where is the line? If your website crashes on every request, then it's clearly not ready. If it crashes only on Thursdays when Carl uploads that one spreadsheet, it depends how important Carl's spreadsheet is.

The answer is always, it depends. When SLA requirements are nonexistent, or self-defined, what is good enough?

[aynyc]

If Carl is uploading financial reports or payrolls for the CXO every month TWICE, then I'll just make sure I have a script that can handle that file unless the fix is easy.

If you have SLA, that's easy, ship as soon as you hit that SLA. If you don't, then onboard clients very carefully.