By Marty Cagan · svpg.com · LinkedIn
Marty Cagan, a consultant who works mainly with CEOs and product leaders, writes an open letter to designers about common mistakes that undermine their impact on products. He argues that designers should be involved from day one, help define what the product should be, and treat UX as the engine of continuous customer learning rather than just usability testing. He also addresses how to communicate with executives, how to handle role and title confusion, and how to run prototype tests effectively. The core message is that UX must be central to product innovation, and designers who adopt these habits will earn trust and influence inside their companies.
01Key takeaways
- Explain designs to executives with high-fidelity prototypes, not process diagrams, and keep them oriented to where the design is heading.
- Separate ongoing baseline customer learning from project-specific work, and start with quick wins to build organizational buy-in.
- Engage from day one to help define requirements, not just to design screens from a finished spec.
- Bring product managers and interaction designers to usability sessions so they see users directly.
- Share key test learnings quickly by informal email, and test early with high-fidelity prototypes rather than right before launch.
02Key sections
- Know your audiences
- Designers serve three audiences, and executives need prototypes rather than process artifacts like site maps or wireframes. Process details can be shared once executives understand the destination.
- Be sensitive to change
- Long, upfront research phases alienate organizations. Teams should run ongoing background customer learning and win early with quick, shared results.
- Customer learning and stepping up
- UX is about enabling rapid, continuous customer learning, and designers should help shape requirements rather than waiting for them.
- Roles and titles
- Interaction, visual, and research roles should be distinct and clearly named, with designers honest about their strengths and collaborating to cover gaps.
- Prototype testing practices
- Product managers and interaction designers should attend tests, informal same-day findings beat formal reports, testing should happen early, and high-fidelity prototypes drive real learning.
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.