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Research sweep · deep · 2016 – 2026

Software Project Outcomes Over Time, and Is AI Improving Them

Software and IT project outcomes over time from July 2016 to July 2026 (biased to the latest year): baseline success/challenged/failure ranges across trusted longitudinal datasets (Standish CHAOS, Oxford Global Projects and Flyvbjerg, McKinsey, PMI Pulse), the drivers of outcomes (complexity, budget, domain, delivery methodology, sourcing), build-vs-buy and low-code/no-code commissioning choices (OutSystems, Mendix, Power Platform, Retool), and whether AI-assisted development (Copilot, Cursor, Claude Code, DORA and METR evidence) is yet improving delivery outcomes on traditional software projects that build ordinary systems rather than AI products.

  • Claude Fable 5
  • financial
  • frontier
  • academic
  • vc
  • blogs
  • tech

Synthesised 2026-07-24

Narrative

Independent technical writers converge on two separate but related stories: the decades-old dispute over Standish CHAOS baseline numbers, and a fast-moving, empirically grounded argument that AI coding assistants are not yet reliably improving delivery outcomes on ordinary software projects, even as they clearly increase raw code output.

On baseline rates, the most-cited independent critique remains Eveleens and Verhoef's IEEE Software paper "The Rise and Fall of the Chaos Report Figures," which argues Standish's definitions have four major problems: they are misleading because they are based solely on estimation accuracy, the measure is one-sided leading to unrealistic success rates, steering on the definitions perverts good estimation practice, and the resulting figures are meaningless because they average numbers with unknown bias


Sources

ID Title Outlet Date Significance
b1 What METR's Study Missed About AI Productivity in the Wild faros.ai February 26, 2026 Retrieved by this lane's web search.
b2 METR’s study on how AI affects developer productivity newsletter.getdx.com July 23, 2025 Retrieved by this lane's web search.
b3 AI Coding Tools Made Developers 19% Slower: METR Study | Let's Data Science letsdatascience.com March 27, 2026 Retrieved by this lane's web search.
b4 Unpacking METR’s findings: Does AI slow developers down? getdx.com August 6, 2025 Retrieved by this lane's web search.
b5 METR’s developer productivity research: 2026 update | Rob Bowley blog.robbowley.net April 4, 2026 Retrieved by this lane's web search.
b6 A randomized trial by METR found that experienced developers completed real coding tasks 19% slower when allowed to use AI tools - yet afterwards, they estimated on average that AI had made them 20% faster. - ScienceBlog.com scienceblog.com 2 weeks ago Retrieved by this lane's web search.
b7 Measuring the Impact of Early-2025 AI on Experienced Open-Source Developer Productivity - METR metr.org July 10, 2025 Retrieved by this lane's web search.
b8 What the METR Study Found About AI Coding Productivity - The most rigorous study of AI coding speed produced results nobody expected - Vibe Coder Blog blog.vibecoder.me March 2, 2026 Retrieved by this lane's web search.
b9 AI Coding Productivity Study Data: What METR, McKinsey, and GitHub Found in 2026 | Value Add VC valueaddvc.com 2 weeks ago Retrieved by this lane's web search.
b10 The Rise and Fall of the Chaos Report Figures | IEEE Software dl.acm.org Retrieved by this lane's web search.
b11 Chaos Report 1 THE STANDISH GROUP REPORT personal.utdallas.edu Retrieved by this lane's web search.
b12 CHAOS Report on IT Project Outcomes - OpenCommons opencommons.org May 14, 2025 Retrieved by this lane's web search.
b13 The Rise and Fall of the Chaos Report Figures cs.vu.nl Retrieved by this lane's web search.
b14 The Rise and Fall of the Chaos Report Figures researchgate.net May 20, 2026 Retrieved by this lane's web search.
b15 Project Failure Is Largely Misunderstood - Henrico Dolfing henricodolfing.ch November 27, 2025 Retrieved by this lane's web search.
b16 Chaos Report - why this study about IT project management is so unique thestory.is Retrieved by this lane's web search.
b17 CHAOS Report: Decision Latency Theory – The Standish Group standishgroup.com Retrieved by this lane's web search.
b18 The Standish Report: Does It Really Describe a Software Crisis? researchgate.net August 1, 2006 Retrieved by this lane's web search.
b19 The rise and fall of the Chaos report figures | IEEE Journals & Magazine | IEEE Xplore ieeexplore.ieee.org Retrieved by this lane's web search.
b20 The reality of AI-Assisted software engineering productivity addyo.substack.com August 22, 2025 Retrieved by this lane's web search.
b21 Simon Willison on ai-assisted-programming simonwillison.net Retrieved by this lane's web search.
b22 AddyOsmani.com - My LLM coding workflow going into 2026 addyosmani.com Retrieved by this lane's web search.
b23 Best Simon Willison posts of 2025 | daily.dev app.daily.dev Retrieved by this lane's web search.
b24 Simon Willison: AI is transforming software engineering productivity, predicting a major disaster in AI usage, and advancements in AI coding models are reshaping roles | Lenny's Podcast cryptobriefing.com April 7, 2026 Retrieved by this lane's web search.
b25 High Leverage | Ep. #9, The AI Coding Paradigm Shift with Simon Willison | Heavybit heavybit.com May 5, 2026 Retrieved by this lane's web search.

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