Dogmatismo e Desenvolvimento de Software @ Rubyconf BR 2014

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Dogmatismo e Desenvolvimento de Software George Guimarães

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Histórias que o Akita não quer que você saiba

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Estamos contratando!  http://plataformatec.com.br/careers

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Ruby desde 2007.

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230 repos ruby/rails. 20 empresas.

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Dogmas.

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"a principle or set of principles laid down by an authority as incontrovertibly true"

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escala Dreyfus de aquisição de conhecimento

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Novice ! "rigid adherence to taught rules or plans" no exercise of "discretionary judgment" escala Dreyfus de aquisição de conhecimento

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Novice ! "rigid adherence to taught rules or plans" no exercise of "discretionary judgment" escala Dreyfus de aquisição de conhecimento Expert ! transcends reliance on rules, guidelines, and maxims "intuitive grasp of situations based on deep, tacit understanding" has "vision of what is possible"

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dogmas/regras ajudam a ganhar conhecimento e experiência

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problema é desapegar dessas regras best practices can become dogmas

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TDD

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Pair Programming

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microserviços

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integração contínua

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Eu também tenho dogmas Sinatra

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Como detectar dogmas? “Sempre foi assim aqui” “Sempre funcionou assim” “Fulano falou sobre isso"

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“Não tenha ídolos, tenha referências" by Fábio Makoto Akita

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psicologia social

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Antes da discussão Depois da discussão Neutro A Favor Contra Grupo A Grupo B Discussões em times tendem à exacerbar a opinião dos membros do grupo. Group Polarization

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ciências políticas educação administração teoria organizacional

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Groupthink Irvin Janes

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tends to override realistic appraisal of alternative courses of action

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term refers to a deterioration in mental efficiency, reality testing and moral judgments as a result of group pressures

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pode levar a decisões precipitadas e irracionais

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Sintomas

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Illusions of invulnerability Overestimations of the group: Unquestioned belief in the morality of the group

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Illusions of invulnerability Unquestioned belief in the morality of the group Rationalizing warnings Closed-mindedness: Stereotyping those who are opposed

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Illusions of invulnerability Unquestioned belief in the morality of the group Rationalizing warnings Stereotyping those who are opposed Self-censorship Uniformity: Illusions of unanimity Direct pressure to conform Mindguards

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Illusions of invulnerability Unquestioned belief in the morality of the group Rationalizing warnings Stereotyping those who are opposed Self-censorship Illusions of unanimity Direct pressure to conform Mindguards

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Causas

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time coeso isolamento do time / pressão externa falta de liderança imparcial background e ideologias homogêneas

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O que fazer?

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O que fazer?

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Prevenção

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All effective alternatives should be examined

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All effective alternatives should be examined Set up several independent groups

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All effective alternatives should be examined Set up several independent groups Invite outside experts into meetings

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All effective alternatives should be examined Set up several independent groups Invite outside experts into meetings One should play Devil’s Advocate

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All effective alternatives should be examined Set up several independent groups Invite outside experts into meetings One should play Devil’s Advocate

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Concluindo,

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dogmas são úteis em diversas situações

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saiba quais se aplicam e quais não situações.

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cuidado ao passar regras aos novatos/aprendizes somos todos novatos em alguma área

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com isso

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decisões melhores times mais participativos menos discussões sobre crenças mais pensamento crítico mais feliz

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"Beliefs are what divide people. Doubt unites them." Peter Ustinov

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https://www.flickr.com/photos/artchild/10556967234 ! https://www.flickr.com/photos/wonderlane/4915217413 ! https://www.flickr.com/photos/anieto2k/5304009256 ! https://www.youtube.com/watch?v=vvrapmvyfVc !

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Ótimo evento à todos! @georgeguimaraes @plataformatec Muito obrigado :)