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  • SPRINT The Fastest Way to Work—The Most Rational Way to Get Every Job DoneWeird Japanese title

  • original title

    • How to Solve Big Problem and Test New Ideas in Just Five Days
    • How to solve big problems and test new ideas in just 5 days
  • Amazon

  • Lean’s MVP (minimum verifiable product) concept was unclear as to “how big is smallest,” and there was a problem that if the risk tolerance of the person making the decision to release the product was low, the product could become sneaky and large.

  • The method presented in this book, simply put, is “6 hours x 5 days, 30 hours time-box” to validate the MVP.

    • Prevent unlimited growth by limiting time resources.
    • The program starts at 10:00 and ends at 17:00, with a one-hour lunch in between, and breaks in between for the first three hours and the second three hours, respectively.
    • P72 More prolonged sprints were also experimented with but were not effective
      • Distractions due to intervening weekends
      • Taking the time to do this makes you more attached to your ideas and makes it harder to learn from your customers.
  • In addition, by limiting the number of man-hours consumed before determining the success or failure of a project to “7 people x 5 days,” it becomes easier to negotiate to invest that in experimentation.

    • It is difficult to approve a project that may suck up unlimited resources, but it is easier to GO if the criteria for suspension are clear.
    • real options concept
  • P59 Example of an industrial pump; it is not even possible to build a product prototype in five days.

    • Think about what can be done in 5 days by reversing the process.
    • We can measure customer response with brochures, experiment with just the nozzle part with a 3D printer, and so on.
  • P76 Importance of enough whiteboards, human short-term memory is not very good, so turn to spatial memory

    • IDEO CEO Tim Brown says in “Design Thinking Changes the World” that having a list of project materials allows you to quickly spot patterns and encourages creative comprehensive.
    • Two movable whiteboards can be used for partitions.
  • P156 Tuesday’s Sketch = turning abstract ideas into concrete solutions

  • Brainstorming 1958 Yale University The Harms of Group Brainstorming

  • 0: Preparation

    • Identifying Challenges
    • Decide on “Oceans 7.”
      • Metaphor from the movie “Ocean’s Eleven”: build a team of no more than seven people, including the decision makers among them.
    • Set aside time and space
  • 1: Firm up your goals

    • Start at the end
    • Make a map
    • Let’s hear it from the experts.
    • Determine the target
  • 2: Dissipate your thoughts

    • Dedicated to recombination and improvement
    • Sketching.
  • 3: Decide on the best

    • Determine.
    • Go head-to-head in a slugfest
    • Establish the story
  • 4: Creating illusions

    • Fake it.
    • Create a prototype
  • 5: Testing

    • know the reality
    • Interview.
    • Learning

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