You can’t know if you’re ready to release unless you know what done means.

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When you use release criteria to know when a project is done, you have taken potentially hidden decisions and made them public and clear. Make your release criteria objective and measurable, so everyone on the project knows what they’re working towards. Use the criteria as you progress through the project and up to the final release. Then you can say ‘Release it!’ with pride. — Johanna Rothman

The quote above is from a fantastic white paper on the subject of  ...