saying that a project is failed because it is late, or has cost overruns - I would argue that it's the estimate that failed. So the CHAOS report isn't chronicling software project failure, it's chronicling software estimation failure. So what counts as success? If we could measure it the answer has to be Return on Investment. Sadly this is usually next to impossible to measure (see my discussion in CannotMeasureProductivity) In the end it's a fuzzy sense of business satisfaction relative to the cost of the project. 引用: WhatIsFailure(失敗とは): マーティンファウラー 36
プロジェクトマネジメントの実践・改善に活かす 最新定量データと分析結果 | IPA | https://www.ipa.go.jp/publish/wp-sd/qv6pgp0000000vv2-att/000069381.pdf - Is High Quality Software Worth the Cost? | martin fowler | https://martinfowler.com/bliki/CannotMeasureProductivity.html