Drawer 11 · 316 notes · 58 people · 2005–2026

Metrics, data & experimentation

North-star metrics, analytics, A/B tests, and data-informed decisions

Q:
Answers from Metrics, data & experimentation notes, cited
Product Talk · Teresa TorresMar 2, 2016

The Rise of Modern Product Discovery

Mar 2, 2016 · 8 min

Torres argues that product delivery has matured through Agile, continuous integration, and story mapping, while product discovery, the work of deciding what to build, has lagged behind. She contrasts the traditional…

SVPG · Marty CaganJan 23, 2012

Product Management Then and Now

Jan 23, 2012

Marty Cagan contrasts the traditional PC-era product manager with the modern Internet-era product manager. He argues that many organizations still operate with the older model, which was often ineffective and poorly…

Product Talk · Teresa TorresAug 3, 2026

Ch. 9: Identifying Hidden Assumptions

Aug 3, 2026 · 5 min

This reading-guide post kicks off a monthly book club around Teresa Torres's Continuous Discovery Habits, focusing on Chapter 9, which covers identifying hidden assumptions. The chapter argues that teams should test the…

Lenny’s Newsletter♥ 185

The ultimate guide to willingness-to-pay

Feb 13, 2024 · 24 min
Subscriber post — summary only

Kristen Berman walks through the four main quantitative willingness-to-pay methods (Van Westendorp, Becker-DeGroot-Marschak, multiple price list, and discrete choice), comparing their strengths and biases. She argues…

SVPG · Marty CaganFeb 8, 2016

When Performance Is Measured By Results

Feb 8, 2016

Marty Cagan argues that the performance-management ideas he learned at Hewlett-Packard, Management by Objectives (later refined as OKRs), remain the foundation of how the best companies operate. The first principle is…

Product Talk · Teresa TorresSep 30, 2013

Don't Overcommit to a Bad Idea

Sep 30, 2013 · 3 min

Teresa Torres uses Jia Jiang's story of pursuing a startup dream under a six-month deadline to introduce the idea of tripwires: predefined points where a decision gets reconsidered. She argues that as people invest…

SVPG · Marty CaganMay 19, 2009

Portfolio Grooming

May 19, 2009 · 3 min

Marty Cagan argues that every technology company has more product ideas than capacity to build them, so the real work of portfolio planning is deciding where to invest. Rather than only adding headcount, companies can…

SVPG · Marty CaganSep 20, 2015

Roadmap Alternative FAQ

Sep 20, 2015 · 6 min

Marty Cagan answers the most common questions readers raised after his article proposing an alternative to conventional product roadmaps. He argues that engineers should help decide what to build, that outcome-based…

Lenny’s Newsletter♥ 265

How Duolingo builds product

Mar 21, 2023 · 19 min
Subscriber post — summary only

Lenny Rachitsky interviews Duolingo VP of Product Cem Kansu about how the company builds product. The post covers its co-lead team structure, quarterly and yearly OKR cycles, a tiered product review process, weekly…

Lenny’s Newsletter · Free post♥ 99

Building a referrals program

Mar 3, 2020 · 6 min

Lenny Rachitsky answers a reader's question about building referral programs for marketplaces, drawing on his experience leading supply growth at Airbnb, where the host referral program became the biggest driver of…

SVPG · Marty CaganApr 3, 2012

Live-Data Prototypes vs. Production

Apr 3, 2012 · 4 min

Cagan distinguishes live-data prototypes, which are real code sent live traffic (usually in A/B tests) to prove an idea works, from production software that the business can run on. Production demands complete critical…

SVPG · Marty CaganMar 2, 2020

Team Objectives – Empowerment

Mar 2, 2020 · 7 min

Marty Cagan argues that team objectives should empower product teams by assigning them a hard problem to solve rather than a feature to build, along with the strategic context needed to make good decisions. Handing over…