Something that should be provided by the projectA temporary endeavour undertaken to create a unique product,... More, but currently is not (or is forecastAn estimate or prediction of conditions and events in the pr... More not to be) provided. This might be a missing productAn artefact that is produced, is quantifiable, and can be ei... More or a productAn artefact that is produced, is quantifiable, and can be ei... More not meeting its specificationA document that specifies, in a complete, precise, verifiabl... More.