8 Side notes JAX London 2016

Overview

Session: 12th Oct — 10:30 to 11:20 Cynefin for Developers Liz Keogh, Consultant

Notes

• Liz keogh blog
• Cynefin post
• Cynefin for Devs post
• The cynefin framework provides a typology of contexts that guide what sort of explanations or solutions for a given task might apply.
• The framework is a set of guidelines to avoid chaos at work.
• We want to answer the question

“What will you be able to do that you can not do right now?”

• Main ideas are resumed in the book Waltzing With Bears: Managing Risk on Software Projects

• Five domains of innovation cycle:

  • 1 Obvious: cause and effect is direct
    • There are best practices defined to perform a task.
  • 2 Complicated: cause and effect requires analysis
    • There are good practices for analysis to predict the outcome.
  • 3 Complex: cause and effect can only be perceived in retrospect
    • Required a safe to fail environment.
    • There are constantly emergent practices for analysis.
  • 4 Chaotic: cause and effect at systems level
    • Quick action specific response is required.
    • Reactive environment.
  • 5 Disorder: not knowing what type of causality exists
    • Nobody really knows what is going on.
    • Example: Estimate time and money for something never done before

• Exist a tendency for projects to get complacency and fall from complex domain to a chaotic domain.

• The task is to estimate complexity level and determine what domain is the project. Then take action according to the domain status.

  • Example: in domain 1 or 2 we do not over analyse, we just take action.

• Focus on the new things. “Problems will come most likely from the new stuff.”

• CThe common vision to focus on value: “Hunt the value” Money of primary stakeholders.

• Careful to break things down. We could get to the point to be unable to keep track of small things.

• The Agile method differentiation concept is to allow to discover unknown unknowns.

• Escape Velocity: Free Your Company’s Future from the Pull of the Past. A guide to free your company’s future from its past.

• Estimate complexity with the 5 levels of ignorance:

  • Level 5 is “complete ignorance” and 1 is “everything is known”.
  • Do not automate stories in levels 4th and 5th, do spikes and understand first by trying / testing. (Create failing test cases)
  • Convert 4th and 5th stories into 3th, 2on and 1st level stories.
  • Write “spiky code” before production code in levels 4th and 5th. In lower levels we write production code.
  • For stories in 1st level test manually just once. Do not BDD obvious stories, only create BDD test cases for complicated and maybe some complex stories. Do not plan for obvious stories, just do it.
  • New things continuously coming is part of the game. Reduce problems to fit within the boundaries of influence of the team. Break dependencies outside of the team.
  • Legacy projects are in the 4th and 5th levels of ignorance.

“Teams can spike, learn from the spike, then take their learning into more stable production code later (Dan North calls this “Spike and Stabilize”). Risk gets addressed earlier in a project, rather than later. Fantastic!” Liz Keogh

That was all for this session.

Many thanks for reading, please leave a comment if you have any quality hint.

Keep on testing, better!