Craftsman Learns ... o r L e a r n i n g t h e C r a f t Pete - - PowerPoint PPT Presentation

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Craftsman Learns ... o r L e a r n i n g t h e C r a f t Pete - - PowerPoint PPT Presentation

Nov 02, 2022 48 likes •950 views

QCon 2010 The Craftsman Learns ... o r L e a r n i n g t h e C r a f t Pete Goodliffe pete@goodliffe.net the craftsman learnslearning the craft pete goodliffe Pete Goodliffe A programmer, a columnist, an author, a teacher. Someone who

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Craftsman

The

Learns

... o r L e a r n i n g t h e C r a f t QCon 2010 Pete Goodliffe pete@goodliffe.net
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SLIDE 2 the craftsman learnslearning the craft pete goodliffe

Pete Goodliffe A programmer, a columnist, an author, a teacher. Someone who cares about code.

www.goodliffe.net goodliffe.blogspot.com
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SLIDE 3 the craftsman learnslearning the craft pete goodliffe

Pete Goodliffe A programmer, a columnist, an author, a teacher. Someone who cares about code.

www.goodliffe.net goodliffe.blogspot.com
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SLIDE 4 Software developers should be perennial students. Exceptional programmers aren't the ones who know it all. No one possibly can, no matter what the self-professed gurus would have you believe. Truly great software developers know their limits, and constantly strive to push them, to learn new skills and amass a catalogue of new techniques that can be applied to their craft. As a programmer you constantly face fresh challenges; you will frequently be forced to learn a new language, a new technology, or a new project. And you will have to know it all by... yesterday. It's both our responsibility and, hopefully, our pleasure. I this talk we'll investigate:
  • how the software craftsman approaches learning
  • what information to learn, and what to ignore
  • how to learn new things effectively
  • techniques for quickly picking up new technology
  • healthy attitudes towards learning
  • the craftsman’s curiosity, and how to assuage it

talk synopsis

the craftsman learnslearning the craft pete goodliffe
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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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SLIDE 6

plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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The prologue

» The Facts of Life «

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LEARNING:.. We all do it

  • Software developers should be perennial students.

all humans are

  • Some people do it better than others
  • Some people do it more than others
  • Our profession requires that we constantly learn
Here are some keys to help us improve
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LEARNING:.. is frightening

  • It’s hard work
  • It’s extra effort
  • Change is good
  • Learning is good

LEARNING:.. is difficult

  • The problem is getting worse
  • There is always a new new thing
  • Increase in code size
  • More legacy code
  • Increased inter-connectedness
  • Career progression → increased expectations
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10,000

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10,000

8,000

4,000

expert shows potential also-ran

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10,000

expert

= 10 years * 3 hours

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= hard work

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Categorising knowledge

» The Facts of Life «

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everything there is to know

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everything you’ve forgotten everything you don’t know everything you know

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“ ”

Reports that say that something hasn't happened are always interesting to me, because as we know, there are known knowns; there are things we know we

  • know. We also know there are known unknowns;

that is to say we know there are some things we do not know. But there are also unknown unknowns

  • the ones we don't know we don't know. And if one

looks throughout the history of our country and other free countries, it is the latter category that tend to be the difficult ones.

Donald H. Rumsfeld February 12, 2002 Department of Defense News Briefing
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everything you don’t know everything you know everything you’ve forgotten

everything you know you don’t know everything you don’t know you don’t know

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everything you know everything you’ve forgotten

everything you know you don’t know everything you don’t know you don’t know everything you know well everything you know a bit

Here are more keys to help us improve In the actual presentation, this jumble makes perfect sense. Animations, dontchaknow...
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everything you’ve forgotten

everything you know you don’t know everything you don’t know you don’t know everything you know well everything you know a bit

Here are more keys to help us improve

» Beware of the «

Four levels of incompetence

1.Conscious incompetence 2.Conscious competence 3.Unconscious competence 4.Unconscious incompetence

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The ethics of learning

» The Facts of Life «

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study is not something that a teacher does to you it is something you do

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study is not something that a teacher does to you it is something you do

responsibility

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professionalism

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“ ”

Learning is like rowing upstream: not to advance is to drop back.

Chinese proverb
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Learning: You’ve either got to, or you ought to.

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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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your knowledge portfolio

the pragmatic programmer
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?

new codebase problem domain technology

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new codebase problem domain technology

  • Programming language
  • Library
  • Framework/API
  • Software tools
  • Build system
  • Issue tracker
  • Architecture
  • Design
  • Structure
  • Idioms
  • How to build
  • How to run tests
  • Development practices
  • Users
  • Domain knowledge
  • Who are the experts?
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new technology technical skills

how to work with others

how to learn the “leftfield”

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new technology technical skills

how to work with others

how to learn the “leftfield”

  • What is the next big

thing?

  • Different language

paradigms

  • New tools
  • Libraries
  • Frameworks
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new technology technical skills

how to work with others

how to learn the “leftfield”

  • How to read code
  • How to write

technical documentation

  • How to manage

software projects

  • New techniques and

methodologies (TDD, BDD, code generation, lean)

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new technology technical skills

how to work with others

how to learn the “leftfield”

  • How to understand
  • thers
  • How to communicate
  • How to listen (and

understand)

  • Understand the

customer

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new technology technical skills

how to work with others

how to learn the “leftfield”

  • That’s why you’re

here!

  • New learning

techniques

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new technology technical skills

how to work with others

how to learn the “leftfield”

  • Foreign language
  • Musical instrument
  • Martial art
  • New branch of

science

  • Art
  • Philosophy
  • Spirituality
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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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master journeyman apprentice → → → → shu ha ri → → → →

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dreyfus model cone of learning

expert proficient competent advanced beginner novice
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“ ”

Effort is one of the things that gives meaning to life. Effort means you care about something, that something is important to you and you are willing to work for it.

Carol Dweck Social Pyschologist Self-theories: Their role in motivation, personality and development (1999)
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attitude

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attitude

Responsibility Continuous learning Hunger Curiosity Humility Self-belief

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Learning tools

» How to learn «

Learning processes Plans

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?

The Ultimate Learning Machine

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» the user’s manual «

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» Maintenance «

Use the correct fuel * Amino acids from protein- rich food (meat, fish, cheese) * Vitamins/minerals (B, sodium, potassium, calcium, omega-3) * Keep hydrated Keep running smoothly * Avoid stress * Adequate rest
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Left brain Right brain PCI Bus

Person Control Interconnect
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Left brain Right brain PCI Bus

Person Control Interconnect
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Left brain Right brain PCI Bus

Person Control Interconnect * Verbal * Rational * Analytic * Linear * Logical * Temporal * Symbolic * Single-threaded * Synchronous * Non-verbal * Non-rational * Intuitive * Spatial * Relational * Perceptive * Holistic * Multithreaded * Asynchronous
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Left brain Right brain PCI Bus

Person Control Interconnect

the trick:

harness both sides

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listen: music twiddle meditate

The Ultimate Learning Machine

describe doodle/draw

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» multimode learning «

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practice

practice is not a noun

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practice

practice is not a noun

deliberate practice katas dojo

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” “

Tell me, and I will forget. Show me, and I may

  • remember. Involve me,

and I will understand.

Confucius
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TDD L

test driven learning

  • Planned study
  • How will you know you’ve successfully learnt?
  • Repeated test and recall
  • Not repeated study
  • Real experience aids recall
  • If you can’t demonstrate it, you don’t know it
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SLIDE 68 your notes your reference materials books, notebooks, web, etc where to get more info cpu cache swap space new downloads; not processed yet future input
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networking

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networking

pair programming study groups mentoring teaching write articles discuss

give knowledge back find someone to learn from
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SLIDE 72 find someone to learn from

be less afraid of your ignorance

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build a mental map

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build a mental map

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a hierarchy of knowledge retrieval

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plan your learning

what you need to know what you know 1st stage knowledge 2nd stage knowledge 3rd stage knowledge test & use knowledge
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mind maps

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always question

  • Question what you’re learning
  • Question this talk!
  • Ask why?
  • Beware of the obvious
  • Unlearning
  • Question your preconceptions
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learn from your mistakes

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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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plan of attack

  • preliminaries: the facts of life
  • what to learn
  • how to learn
  • conclusions
the craftsman learnslearning the craft pete goodliffe
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you are here

(enjoy the view)
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attitude

  • It’s your responsibility
  • Learn deliberately
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goals

  • Live to love to learn
  • Take responsibility for your learning
  • Learn one language per year
  • The Pragmatic Programmer
  • Scratch an itch
  • Learn an interest, do some open source
  • Read at least one book every two months
  • Build a mental map and brain cache
  • Try to use both sides of your brain
  • Deliberate Practice & Exercise
  • Learn from others
  • Teach others
  • Apply knowledge cautiously
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SLIDE 85 Pete Goodliffe pete@goodliffe.net the craftsman learnslearning the craft pete goodliffe
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references ?

the craftsman learnslearning the craft pete goodliffe
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references

10,000 hours
  • Outliers. The Story of Success.
Malcom Gladwell. Little, Brown and Company. ISBN 978-0-316-01792-3. Chapter 2. The Role of Deliberate Practice in the Acquisition of Expert Performance.
  • K. Andrew Ericsson, Raly Th. Krame and Clemens Tescho-Romer.
The last man who knew it all Influence: Science and Practice. Robert B. Cialdini. Pearson Education. ISBN-13: 978-0321011473 Four levels of incompetence Maslow’s Four Stages Of Learning. See: http://en.wikipedia.org/wiki/Four_stages_of_competence Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments Justin KRUGER, David DUNNING. Psychology, 2009, 1, 30-46 Knowledge portfolio The Pragmatic Programmer. Hunt, Thomas Shu Ha Ri See: http://en.wikipedia.org/wiki/Shuhari Dreyfus Model of Skills Acquisition See: http://en.wikipedia.org/wiki/Dreyfus_model_of_skill_acquisition Stuart E. Dreyfus; Hubert L. Dreyfus (Feb 1980), A Five-Stage Model of the Mental Activities Involved in Directed Skill Acquisition, Storming Media Effort/Importance of self-belief Dweck, Carol S. Mindset: The New Psychology of Success. Ballantine Books, 2007. Carol Dweck Self-theories: Their role in motivation, personality and development (1999) the craftsman learnslearning the craft pete goodliffe
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references

Left/Right brain Lateral specialization in the surgically separated hemispheres. R.W. Sperry. In Neurosciences Third Study Program. F. Schmitt and F. Worden (Eds.), Cambridge: MIT Press 3:5-19 (1974). Exocortex See: http://en.wikipedia.org/wiki/Exocortex Mind maps The Mind Map Book: How to Use Radiant Thinking to Maximise Your Brain’s Untapped Potential. Tony Buzan and Barry Buzan. Pliume, New York, 1996. This amused me: http://lifehacker.com/288763/a-beginners-guide-to-mind-mapping- meetings the craftsman learnslearning the craft pete goodliffe
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references

the craftsman learnslearning the craft pete goodliffe

this really is marvellous

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SLIDE 90 Pete Goodliffe pete@goodliffe.net the craftsman learnslearning the craft pete goodliffe