By Marty Cagan · svpg.com · LinkedIn
Marty Cagan argues that Six Sigma, a quality-control methodology proven in manufacturing, does real damage when applied to software product discovery and development. He observes that once influential innovators such as Motorola, 3M, GE, Sun and Intuit adopted Six Sigma from the top down, their innovation largely disappeared into incremental refinements. He contends that the cost of this misapplication outweighs short-term savings because new product introductions slow and customer reactions weaken. For technology companies the goal is building the right product, not just building the product right, so organizations should optimize around discovery and creativity rather than defect elimination.
01Key takeaways
- Apply quality-control methods like Six Sigma where the process is repetitive and defect reduction matters, such as manufacturing.
- Avoid importing defect-reduction frameworks into product discovery, where experimentation and creativity matter more.
- Watch for short-term cost savings that quietly erode innovation and new product output over time.
- Measure product success by whether customers love what you build, not only by how cleanly you build it.
- Protect the creative people and initiative your product organization depends on, since bureaucracy drives them away.
02Key sections
- Quality tools in the wrong place
- Six Sigma suits manufacturing firms with quality or cost problems, but advocates often extend it to every business process. Cagan notes he saw two tech companies newly adopting it, which surprised him.
- Innovation companies that faded
- Cagan cites once-admired innovators that adopted Six Sigma and then saw their creative output shrink to minor refinements. The pattern suggests the methodology, not the companies' people, drove the decline.
- Why the damage outweighs the savings
- Short-term cost cuts give way to slower product launches and weaker top-line results over time. Creative people also leave, while those who remain become risk-averse.
- Build the right product, not just build it right
- Tech companies should focus on discovering products customers love rather than eliminating defects. Scrum can be misapplied in similar ways, but Cagan has seen no damage as deep as top-down Six Sigma.
03From the post
“A partnership dedicated to teaching best practices to product teams and product leaders”
04Frameworks mentioned
Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.