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Lean Startup and Product Charter

Welcome to the seventh guide in our series on agile product management. In this guide, we explore two powerful methodologies—Design Thinking and Lean Startup—that provide frameworks for navigating the discovery and validation phases of product development. By understanding these methodologies, product managers can effectively define problems, develop solutions, and validate their ideas, ultimately leading to successful product launches.

Key Takeaways

  1. Design Thinking and Lean Startup offer powerful methodologies for navigating the discovery and validation phases of product development.

  2. The Problem Canvas, Solution Canvas, and Business Model Solution Canvas are valuable tools for understanding customer problems, exploring solutions, and defining business models.

  3. The Lean Validation process emphasizes constant validation and iteration to reduce uncertainty and achieve product-market fit.

  4. Managing Up and Across involves building alignment around the product vision, chartering the product, developing roadmaps, prioritizing the product backlog, and working effectively with leadership.

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Design Thinking & Lean Startup

Design Thinking and Lean Startup are iterative methodologies that guide product development by emphasizing user-centric approaches and hypothesis-driven experimentation, respectively. Design Thinking, championed by David Kelly of IDEO, focuses on understanding users, defining problems, and prototyping solutions. In contrast, Lean Startup, popularized by Eric Ries, emphasizes building minimum viable products, measuring their performance, and iterating based on feedback. Both methodologies stress the importance of constant validation and iteration, encapsulated in the principle of Always Be Validating (ABV).

Problem Definition

The first step in the problem discovery phase is defining the problem statement effectively. Product managers need to answer four primary questions: What is the customer’s problem? Are they willing to pay to solve this problem? Is the customer segment large enough to constitute a market? Does solving this problem align with our company? The Problem Canvas is a valuable tool for understanding the customer, their problem, scenarios, alternatives, success criteria, and evidence of willingness to pay.

Solution Definition

The Solution Definition phase involves determining solution fit by addressing questions about feasibility, technical risks, design competency, and cost-effectiveness. The Solution Canvas helps product teams explore key customer-problem pairs, market entry strategies, risk identification, and differentiation from alternatives. Market entry strategies include creating a new market, entering an existing market with an optimized product, creating a new segment with a simpler product, and targeting a niche market.

Business Model Definition

The Business Model Definition phase focuses on addressing considerations related to reaching the target market, customer lifetime value, necessary support services, and funding requirements. The Business Model Solution Canvas assists in identifying customer segments, understanding purchase journeys, setting pricing, defining key financial performance indicators, identifying potential partners, and highlighting intellectual property concerns.

Lean Validation Overview

The Lean Validation process is essential for validating assumptions and reducing uncertainty in product development. Product managers continually cycle between discovery and validation activities, aiming to learn as quickly as possible. The Dual Track Approach involves parallel activities in discovery and development, ensuring that teams focus on both what to build and how to build it. Cycle Zero marks the beginning of the dual-track process, where planning and customer data gathering occur concurrently.

Managing Up and Across

Managing Up and Across involves building alignment and securing buy-in for product plans. Product managers need to create alignment around the product vision, charter the product, develop roadmaps, prioritize the product backlog, and work effectively with leadership. Building alignment requires substantial time and effort, as well as managing personalities, conflicting priorities, and different agendas.

Flight Plan: Product Charter and Roadmap

The Flight Plan example illustrates the creation of a Product Charter and Roadmap. The Product Charter outlines the vision, objectives, guiding principles, boundary constraints, resources, and authorized players for the Flight Plan product. The Roadmap reflects how the vision and business objectives will be realized over time, using an objectives-based approach incorporating Pirate Metrics (Acquisition, Activation, Retention, Referral, Revenue).

We’ve explored the principles and practices of Lean Startup and Design Thinking, as well as techniques for creating Product Charters, Roadmaps, and Solution Canvases. By applying these methodologies and tools, product managers can effectively navigate the complexities of product development, reduce uncertainty, and increase the likelihood of success in the marketplace.


In the next guide, we will explore the concept of User Story Mapping and its role in product development. User Story Mapping helps product teams visualize user journeys, explore solutions at a feature level, and prioritize product features based on user needs. By understanding how to create and utilize User Story Maps, product managers can gain deeper insights into user goals and preferences, ultimately leading to the development of more user-centric products.