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The Evolution of Engineering Excellence by Patrick Kua

The Evolution of Engineering Excellence by Patrick Kua

Presented at https://www.meetup.com/Agile-Singapore/events/273699770

How we build software today looks vastly different from 20 years ago. Excellence in software engineering matters more than ever. Did you ever stop to wonder why? By looking at the history of engineering practices, we can learn how engineering excellence evolved and what that implies about the future. As software engineers, you will learn why it’s important to continue to hone your craft and why it’s important for tech companies to continually invest in software excellence today.

Patrick Kua is a seasoned technology leader with almost 20 years of experience. His personal passion is accelerating the growth and success of tech organisations and technical leaders. He has had many years of hands-on experience, leading, managing and improving complex organisations and software systems as the CTO and Chief Scientist of N26 (Berlin, Germany) and as a Technical Principal Consultant at ThoughtWorks. He is a frequent keynote and conference speaker, author of three books including The Retrospective Handbook, Talking with Tech Leads and Building Evolutionary Architectures and runs the free popular newsletter for leaders in tech, “Level Up” (http://levelup.patkua.com) and the Tech Lead Academy, offering online training for technical leaders. You can find him online on twitter as @patkua or running his very popular “Shortcut to Tech Leadership” workshop.

Agile Singapore

October 15, 2020
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  1. The Evolution of
    Engineering Excellence
    Agile Singapore (Oct 2020)
    @patkua

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  2. @patkua
    #Architect #Developer #Coach #Leader #CTO
    #Life-long learner #Author #Speaker
    Patrick Kua
    ~20 years experience
    Agile Software Development
    Organisational Change
    Systems Thinking
    Technical Leadership Development
    @patkua

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  3. @patkua
    thekua.io/twtl thekua.io/retrobook
    #Architect #Developer #Coach #Leader #CTO
    #Life-long learner #Author #Speaker
    thekua.io/evolarch
    @patkua

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  4. @patkua
    Level
    Up
    A curated newsletter for
    leaders in tech
    http://levelup.patkua.com
    @patkua

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  5. @patkua
    @patkua
    Shortcut to Tech Leadership
    Accelerate Your Journey From Maker to Multiplier
    techlead.academy
    3 Nov, 2020 2:30pm SGT
    https://www.tickettailor.com/events/agilesingapore/434309

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  6. @patkua
    Questions
    http://menti.com use code 8160282; or
    https://www.menti.com/qacnm9k2b2

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  7. @patkua
    @patkua

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  8. @patkua
    Our Journey
    @patkua

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  9. @patkua
    @patkua
    Our Ecosystem
    Systems
    Tools Practices
    Organisation
    Products
    Competitors

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  10. @patkua
    1950s

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  11. @patkua Source: https://upload.wikimedia.org/wikipedia/commons/b/bd/UNIVAC-I-BRL61-0977.jpg
    @patkua

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  12. @patkua
    0010011010011001
    1101010011100101
    1100010101001010
    0100101101010010
    1101011000101100

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  13. @patkua
    0010011010011001
    1101010011100101
    1100010101001010
    0100101101010010
    1101011000101100
    println(“Hello World”)
    // PS. Not actual A-0 code

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  14. @patkua
    println(“Hello World”)

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  15. @patkua
    IDENTIFICATION DIVISION.
    PROGRAM-ID. HELLO-WORLD.
    * simple hello world program
    PROCEDURE DIVISION.
    DISPLAY 'Hello world!'.
    STOP RUN.

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  16. @patkua
    Grace Hopper

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  17. @patkua
    Context
    Heavy
    Calculations
    Computer
    Specific
    This is
    “Best Practice”
    @patkua

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  18. @patkua
    “Can we improve this?”

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  19. @patkua
    Lessons Learned
    Compute more
    accessible Too many steps
    Prototype over
    words
    @patkua

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  20. @patkua
    1990s

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  21. @patkua
    Intel
    Inside
    Software
    on CDs
    56K
    Modems
    Reused under the Creative Commons Licence
    https://www.flickr.com/photos/21987248@N00/122099189
    AOL Online
    1.0/1.2

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  22. @patkua
    SFTP
    COM
    CSV
    FLATFILE

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  23. @patkua
    SFTP
    COM
    EJB

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  24. @patkua
    SERVER
    APPLICATION SERVER
    J2EE APPLICATION
    J2EE APPLICATION
    J2EE

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  25. @patkua
    J2EE
    SERVER
    APPLICATION SERVER
    J2EE APPLICATION
    J2EE APPLICATION
    SERVER
    APPLICATION SERVER
    J2EE APPLICATION
    J2EE APPLICATION

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  26. @patkua
    Idea or Task
    Dev-Test Cycle
    Write
    code Build
    package
    Start
    application server
    Deploy
    package
    Test app

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  27. @patkua
    @patkua

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  28. @patkua
    Key Issues
    Proprietary
    App Servers
    Excessively
    manual
    XML
    “addicted”
    @patkua

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  29. @patkua
    “Enterprise”
    software
    Early days for
    open source
    This is
    “Best Practice”
    Context
    @patkua

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  30. @patkua
    “Can we improve this?”

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  31. @patkua
    Lessons Learned
    Faster
    feedback
    Desire for more
    lightweight tools
    Openness
    @patkua

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  32. @patkua
    Early 2000s

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  33. @patkua
    Waterfall
    “Requirement Specifications”
    “Build and Release Team”
    Release “sign off”
    “Regression” phase
    Release time 3+ months
    @patkua

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  34. @patkua
    Waterfall
    “I believe in this concept, but the
    implementation described above
    is risky and invites failure ”
    - (1970) Winston Royce
    @patkua

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  35. @patkua
    Agile = “Hack”
    Software is
    “Engineering”
    This is
    “Best Practice”
    Context
    @patkua

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  36. @patkua
    “Can we improve this?”

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  37. @patkua
    “What if we did good practices
    more often?”
    C

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  38. @patkua
    C
    Good Practice Good Practice x 10
    Manual testing Automated testing
    Integration phase Continuous Integration
    Planning Adaptive Planning
    Release to customers More frequent releases
    Code reviews Pair programming

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  39. @patkua
    @patkua

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  40. @patkua
    Mid 2000s

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  41. @patkua
    2004 2009
    2MB
    5MB

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  42. @patkua
    2001
    2004
    2006

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  43. @patkua
    On Premise Cloud Computing

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  44. @patkua
    ???
    Integration
    Phase
    Continuous
    Integration

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  45. @patkua
    “Can we improve this?”

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  46. @patkua
    “The Last Mile”
    Problem
    @patkua

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  47. @patkua
    @patkua
    Our Journey

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  48. @patkua
    What can
    we learn?

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  49. @patkua
    @patkua
    Our Ecosystem
    Systems
    Tools Practices
    Organisation
    Products
    Competitors

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  50. @patkua
    Context Matters

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  51. @patkua
    Context Matters
    Context Changes

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  52. @patkua
    Constant
    Improvements

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  53. @patkua Source: https://xkcd.com/2347/
    Constant
    Improvements

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  54. @patkua
    Integration
    Phase
    Continuous
    Integration
    Continuous
    Delivery
    Build Team
    Regression Testing
    Automated Testing
    Trunk Based Development
    Automated Deployment Process
    Incremental Delivery
    Best Practice?
    Constant
    Improvements

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  55. @patkua
    Constant
    Experimentation

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  56. @patkua
    Integration
    Phase
    Continuous
    Integration
    Continuous
    Delivery
    ???
    ???
    Adaptive over
    Predictive
    Constant
    Experimentation

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  57. @patkua
    Constant
    Experimentation
    Not all ideas are great
    Model Driven
    Development
    SOAP
    Rational Unified
    Process

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  58. @patkua
    Evolutionary
    Engineering

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  59. @patkua
    Evolutionary
    Engineering
    Source Control

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  60. @patkua
    Evolutionary
    Engineering
    RCS
    VSS TFSVC
    ClearCase
    darcs
    Bazaar
    SCCS
    Perforce
    AccuRev
    Source Control

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  61. @patkua
    @patkua

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  62. @patkua
    4 Crafting Guidelines
    Stay context aware
    Learn principles, then apply with tools
    Use your craft where it matters
    Strive for incremental continuous improvement
    @patkua

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  63. @patkua
    Conclusion
    @patkua

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  64. @patkua
    Software
    Excellence
    Context
    Best practices
    expire
    Improvements
    Best practices
    emerge
    Best practice becomes
    standard practice
    Constant
    Evolution
    @patkua

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  65. @patkua
    Software
    Excellence
    Context
    Best practices
    expire
    Improvements
    Best practices
    emerge
    Best practice becomes
    standard practice
    Software
    Craftsmanship
    Mindset
    @patkua

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  66. @patkua
    Thank You
    The Evolution of
    Engineering Excellence

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  67. @patkua
    Questions
    http://menti.com use code 8160282; or
    https://www.menti.com/qacnm9k2b2

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