Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Rules vs Examples (BDDX London 2014)

mattwynne
December 05, 2014

Rules vs Examples (BDDX London 2014)

mattwynne

December 05, 2014
Tweet

More Decks by mattwynne

Other Decks in Technology

Transcript

  1. Stories, Rules and Examples @mattwynne | BDDX 2014 London

  2. Rules vs Examples AKA, The Passwords Game

  3. Form teams • Need an even number of teams •

    2-4 people per team
  4. In order to prevent passwords from being guessed, Users must

    be forced to create strong passwords
  5. Create 3 rules • In your team, invent 3 rules

    for what makes a valid password • Keep the rules secret from the other teams • Be imaginative, and have a bit of fun • Examples: "It must have an @ in it" "It must not be the name of a fruit"
  6. Create 3 examples • Create 3 examples that illustrate your

    rules. • Scribble each one on a post-it note • Examples: "@pple" => valid "apple" => invalid "[email protected]" => valid
  7. Guess the rules! • Pass your examples to another team.

    • Let them try to work out what your rules might be.
  8. Clarify with examples • As a guessing team, you can

    create new examples and ask them to be checked by the team whose rules you're trying to guess. • One example at a time. • How many examples will it take to guess the rules correctly?
  9. So...

  10. What was missing?

  11. Complete the following sentences • Examples are better than rules

    because… • Rules are better than examples because… • Examples without rules are like… • Rules without examples are like…
  12. We need rules and examples

  13. Use examples to illustrate the rules

  14. User Story Rules / Acceptance Criteria Examples Describe each of

    these in your own words