For over forty years, the Stage-Gate® process has served as a framework for managing new product development (NPD). [1] Around the world, organizations rely on Stage-Gate® not only as a structured roadmap for managing innovation but also as a proven system that consistently transforms their best ideas into profitable, winning products. Few business processes have had such a lasting impact on corporate innovation performance—see Figure 1. [2]
Stage-Gate®—As PDMA Defines It
While some organizations refer to their models as “phase-gate,” “phase-review,” or “gated development,” the Product Development & Management Association (PDMA) formally recognizes Stage-Gate® as the industry standard. The PDMA’s Handbook defines it as: [5]
“Stage-Gate Process: a widely employed product development process that divides the effort into distinct time-sequenced stages separated by management decision gates. Multifunctional teams must successfully I complete a prescribed set of related cross-functional tasks in each stage prior to obtaining management approval to proceed to the next stage of product development. The framework of the Stage-Gate™ process includes workflow and decision-flow paths and defines the supporting systems and practices necessary to ensure the process’s ongoing smooth operation,”
This architecture—stages followed by gates—gave rise to the name Stage-Gate®, which has been used since the late 1980s and is now recognized globally. [ ]
The Birth and Adoption of Stage-Gate®
Stage-Gate had its beginnings as an academic research project undertaken by the author early in his career. The study observed how very successful NPD project teams in some leading companies drove “big winner” projects from idea to launch successfully and quickly. The research was much like watching very successful North American football teams as they marched down the field to score a touchdown, and then mapping out what they did—a “playbook”. In this case, the resulting playbook became “Stage-Gate”.
A handful of major companies that had participated in the study decided to give the new process a try. Stage-Gate quickly gained traction because companies immediately saw that the new model addressed weaknesses in their current methods:
- By 2010, a major APQC benchmarking study found that 88% of U.S. firms involved in NPD use a form of Stage-Gate® to manage their projects from idea to launch. [7]
- These companies reported benefits such as improved cross-functional teamwork, higher success rates, stronger early detection of failure, better launch outcomes, and significantly shorter cycle times—often reduced by 30%. [8]
A more recent global study by PDMA found that about 54% of firms worldwide use Stage-Gate® or a similar structured process. [9] This study concluded that “…faster cycle times result from the use of a formal, structured NPD process such as functional phase review, cross-functional stage-gate, or agile,” with Stage-Gate® being the more popular.
Other NPD systems include Waterfall, which originated in the 1940s–1950s for large-scale engineering projects, later for software development. Waterfall is a technical process, not a business process, and lacks gates between the stages; it is a linear, sequential, and fairly rigid project management approach. [10]
Phase Review is similar to Waterfall and was developed in the 1960s by NASA for engineering projects. Unlike Waterfall, however, it does have reviews between phases that gauge project readiness (TRLs), [11] but not go/kill decision points that judge the project’s continued value.
[1] Robert G. Cooper, “The 5th Generation Stage-Gate Idea-to Launch Process,” IEEE Engineering Management Review, 50(4): (Dec. 2022): 43–55. https://doi: 10.1109/EM
[2] Robert G. Cooper, “Stage-Gate Idea to Launch System,” in Wiley International Encyclopedia of Marketing: Product Innovation & Management (Volume 5), B.L. Bayus (ed.), West Sussex, UK: Wiley: (Dec. 15, 2010): Part 5. https://doi.org/10.1002/9781444316568.wiem05014
Wiley free access: The Stage‐Gate Idea to Launch System - Cooper - 2010 - Major Reference Works - Wiley Online Library
[3] Robert G. Cooper, Winning at New Products: Creating Value Through Innovation, 5th edition, New York, NY: Basic Books, Perseus Books Group: (2017): Chapter 4.
[4] The PDMA Handbook of Innovation and New Product Development, 4th ed., edited by Ludwig Bstieler and. and Charles H. Noble, Hoboken, NJ: John Wiley & Sons Inc: (2023): Chapter 1. ISBN: 978-1-119-89021-8. The PDMA Handbook of Innovation and New Product Development, 4th Edition | Wiley
[5] The PDMA Handbook of New Product Development, 3rd ed., edited by Kenneth B. Kahn. Hoboken, NJ: John Wiley & Sons Inc.: (2013): Glossary. ISBN 978-0-470-64820-9
[6] Stage-Gate® is a registered trademark in the USA of Stage-Gate International Inc. and in Canada and Europe of Robert G. Cooper. The term “Stage-Gate” was coined by the author and it first appeared in print in 1988: Robert G. Cooper, “The New Product Process: A Decision Guide for Managers,” Journal of Marketing Management, 3(3): 1988: 238–255.
[7] The 2013 PDMA Handbook, endnote [5]: p 34.
[8] Wikipedia. “New Product Development: Conceptual Models—Stage-Gate Model,” (2025). New product development - Wikipedia:
[9] Mette P. Knudsen, Max von Pedowitz, Abbie Griffin, and Gloria Barczak, “Best Practices in New Product Development and Innovation: Results from PDMA’s 2021 Global Survey,” Journal of Product Innovation Management, 40: (2023): 257–275. https://doi: 10.1111/jpim.12663. Best practices in new product development and innovation: Results from PDMA’s 2021 global survey
[10] Robert G. Cooper, “Stage-Gate Is Not Waterfall… Find Out Why and How,” IEEE Engineering Management Review, 53(1): (Feb. 2025): 100–105. https://doi.org/10.1109/EMR.2024.3426228
[11] Catherine G. . Manning, “Technology Readiness Levels,” NASA Explore. (Sept. 2023). https://www.nasa.gov/directorates/somd/space-communications navigation-program/technology-readiness-levels/
[12] Robert G. Cooper, “The Stage-Gate® Idea-to-Launch Process—Update, What’s New, and NexGen Systems,” Journal of Product Innovation Management, 25: (March 2008): 213–232. https://doi.org/10.1111/j.1540-5885.2008.00296.x
[13] Robert G. Cooper. “Expected Commercial Value for New-Product Project Valuation When High Uncertainty Exists,” IEEE Engineering Management Review, 51(2): (June, 2023): 75–87. https://doi.org/10.1109/EMR.2023.3267328
[14] Robert G. Cooper and Anita F. Sommer, “Dynamic Portfolio Management for New Product Development.” Research-Technology Management, 66(3): (2023): 19–31. https://www.tandfonline.com/doi/full/10.1080/08956308.2023.2183004
[15] Rick Mitchell, Rob Phaal, Nikoletta Athanassopoulou, Clare Farrukh, and Christian Rassmussen, ”How to Build a Customized Scoring Tool to Evaluate and Select Early-Stage Projects,” Research-Technology Management, 65 (3): (2022): 27–38. https://www.tandfonline.com/doi/full/10.1080/08956308.2022.2026185
[16] Robert G. Cooper, “Accelerating Innovation: Lessons from the Pandemic,” Journal of Product Innovation Management, 38(2): (March 2021): 1–11. https://doi.org/10.1111/jpim.12565
Open access at (US Gov) National Institute of Health: https://pmc.ncbi.nlm.nih.gov/articles/PMC8014561/
[17] Robert G. Cooper and Anita F. Sommer, “The Agile–Stage-Gate Hybrid Model: A Promising New Approach and a New Research Opportunity,” Journal of Product Innovation Management, 33(5): (Sept 2016): 513–526. https://doi.org/10.1111/jpim.12314