Software is like Music

Master Class at @U_tad and @telefonicaid describing what software developer and software development are

Transcript

1. What  is  a  So*ware  Developer  
    
   @_rubengb  
   

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2. Wrong  Job  Title?  
   So*ware  Architect  
   So*ware  Engineer  
   Computer  Scien-st  
   Programmer   So*ware  Developer  
   

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3. Why  not  So*ware  Doctor?  
   

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4. What  is  a  So*ware  “Developer”?    
   A  personal  understanding  
   

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5. HW  calculaDon  power  is  higher  than  Humans  
   Picture:  from  Hans  Moravec  1997,  When  will  computer  hardware  match  the  human  brain?  
   hMp://www.transhumanist.com/volume1/moravec.htm    
   

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6. Computers  (hardware  +  so*ware)  
   have  become  Complex  systems    
   

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7. Complexity  leads  to  Uncertainty    
   Programing  the  machines  has  become  an  uncertain  acDvity  
   Idea/algorithm    must  be  coded  -­‐>  synthesis  and  Tested!  
   

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8. Observing  a  So*ware  Developer  
   

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9. Dennis  the  So*ware  Developer  
   

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10. Observing  Dennis  coding  
    Problem  &    
    Coding  Idea  
    Code  
    Run  &  Test  
    Outcome  
    Programmer  
    

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11. Humm…Find  the  Differences  
    Problem  &    
    Coding  Idea  
    Code  
    Run  &  Test  
    Outcome  
    Programmer  
    Scene  &  
    PainDng  Idea  
    Paint    
    Review    
    Outcome  
    Painter  
    

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12. The  ArDst  conDnuous  flow  (ISRF)  
    IntenDon   RealizaDon  
    Feedback  
    Synthesis  
    ISRF  Cycle  
    

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13. The  ArDst  conDnuous  flow  (ISRF)  
    IntenDon   RealizaDon  
    Feedback  
    Synthesis  
    The  SW  Developer  
    ISRF  Cycle  
    

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14. Individuals  (So*ware  Developers)  use  ISRF  
    cycles  to  generate  working  so*ware(“art”)  
    IntenDon   RealizaDon  
    Feedback  
    Synthesis  
    

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15. Till  the  Desired  Working  SoGware  (art)  Emerges  
    Inten%on' Realiza%on'
    Feedback'
    Synthesis'
    Inten%on' Realiza%on'
    Feedback'
    Synthesis'
    Inten%on' Realiza%on'
    Feedback'
    Synthesis'
    Inten%on' Realiza%on'
    Feedback'
    Synthesis'
    Inten%on' Realiza%on'
    Feedback'
    Synthesis'
    Compile  Failed  
    Run  Failed  
    Test  Failed  
    Test  Passed  
    Enhance  Idea/Design  
    Test  Failed  
    Inten%on' Realiza%on'
    Feedback'
    Synthesis'
    Test  Passed  
    WORKING  SOFTWARE  
    Inten-onal  
    Emergent  
    Emergence  is  the  key  characterisDc  of  complex  systems.    
    

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16. In  some  sense  so*ware  development  
    is  a  kind  of  Art  or  Cra*  
    Problem  &    
    Programming  Idea  
    Code,  Run  &  Test  
    Review  
    Outcome  
    Programmer  
    Scene  &  
    PainDng  Idea  
    Paint    
    Review    
    Outcome  
    Painter  
    Digital  Experience  Creators   Visual  Experience  Creators  
    

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17. The  ArDst  aMributes  
    Knowledge    
    Mastery  
    Talent  
    MoDvaDon    
    CreaDvity  
    InspiraDon  
    Passion  
    Genius  
    The  SW  Developer  
    

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18. Art  vs  pure  Engineering  
    Human  
    Unpredictable    
    PracDces  
    Tacit  
    Planned  
    Process  
    Explicit  
    VS  
    Industrial  
    So*ware  Development  
    

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19. So*ware  Programming  is  not  like  pure  
    Engineering  
    

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20. So*ware  Programing  is  not  like  
    Building  ConstrucDon  
    

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21. So*ware  Programmers  are  not  like  
    ConstrucDon  Workers  
    

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22. Cra*ing  or  Engineering?  
    So*ware   Development   seems   to   be   closer   to  
    Cra*ing   and   ArDsDc   work   rather   than   pure  
    Engineering  work….    
    …but  some  good  pracDces  of  Engineering  
    disciplines  can  sDll  be  applied.  
    

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23. Cra*  or  Art?    
    Just  a  maMer  of  genius  and  talent  
    So*ware  code  wriMen  by    humans  can  have  “beauty”  in  the  way  is  wriMen,  run,  
    structured  and  how  collaborate/  interact  between  its  parts  
    

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24. Looking  at  so*ware  from  a  different  
    perspecDve  trying  to  re-­‐understand  
    what  “So*ware  Development”  is  
    

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25. Perhaps  So*ware  is  like  Music  
    Structure  and  Dynamic  (-me)  dimensions  
    

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26. Computer  vs  Music  Player  
    

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27. Program  vs  Pentagram    
    

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28. Programming  vs  Composing  
    

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29. Running  a  Program  vs  Playing  Music  
    compiled  
    interpreted  
    

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30. So*ware  Programming,  like  music,  
    requires  deliberate  pracDce  
    

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31. Perhaps  Programming  So*ware  in  a  Team  is  like  Jazz  
    Original  Dixieland  Jass  Band  
    Melodies  are  improvised/created  
    on  top  of  a  shared  Harmony  
    created  by  a  composer  (so8ware  
    architect)  
    Everybody  is  a  Composer  
    The  Harmony  (architecture)    
    provides  consistency  
    

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32. New  Job  Dtle:  So*ware  Composer  
    

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33. ImplicaDons  
    •  So*ware  Composers  are  EssenDal  when  creaDng  products  and  services  
    based  on  so*ware  
    •  Pure  Engineering  PredicDve  processes  and  planning  do  not  apply  well  
    when  creaDng  so*ware    
    –  Is  it  agile  methods  the  answer?  (AdapDve  Management)  
    •  ArDsDc  beauty  in  both  how  the  so*ware  is  structured  and  dynamically  
    runs  is  important  and  should  be  consider  when  creaDng  so*ware  
    –  3  key  design  characterisDcs  to  look  for  :  
    •  conceptual  integrity,  high  cohesion,  low  coupling    
    •  CreaDvity,  Mastery,  Talent,    and  Knowledge  of  the  So*ware  Composers  
    are  key  for  succeeding  in  creaDng  so*ware  
    –  Could  it  be  outsourced?    
    

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