By Marty Cagan · svpg.com · LinkedIn
Cagan describes a "Big Bang" release as a project built for months and then launched all at once, a common outcome of Waterfall but also possible under Scrum. He argues it almost never goes well: dates slip or features get cut, little time remains to learn from live data, and stability and user adoption suffer from too much change at once. He traces the pattern to marketing launch events, executives pushing aggressive dates while squeezing test and release time, and oversight processes that force Waterfall-style gates. His remedy is to design, build, test, and release incrementally, even if changes ship dark, and to bring prototypes and real user feedback to executive reviews.
01Key takeaways
- Treat a Big Bang release as a warning sign, since it usually leads to slipped dates or cut features.
- Separate the marketing launch event from the product release; ship the software progressively, even if customers don't see it yet.
- Hitting an aggressive date is better served by incremental build and deploy than by squeezing test and release time.
- Use live data from early releases to adapt, something a single big launch leaves no room for.
- Bring prototypes and real user feedback to executive reviews to build credibility while still shipping incrementally.
02Key sections
- What a Big Bang release is
- A Big Bang release bundles months of work into one launch event. It is often the byproduct of Waterfall, though Scrum teams can fall into it too.
- Why it usually fails
- Releases grow until dates slip or features are cut, there is no time to act on live data, and stability and user reactions suffer from too much change at once.
- Common causes
- Marketing wanting a big reveal, executives squeezing dates by cutting test and release time, and multi-stage approval processes all push teams toward one big release.
- Recommended approach
- Release incrementally, shipping dark where needed, since delivery dates are better met by incremental deployment than by bundling everything together.
- Handling executive oversight
- Even with required reviews, teams can bring prototypes and user feedback to them and keep building and deploying incrementally.
03From the post
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04Frameworks mentioned
Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.