Teste A/B (e porquê isso importa)

Pattern Matching no Java? Neste episódio falamos sobre Pattern Matching e como esse recurso foi introduzido no Java. Participantes: Marcio Frayze David   [email protected]   https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze   https://dev.to/marciofrayze   Julianno Martins Silva [email protected] https://twitter.com/juliannoms https://linkedin.com/in/juliannoms Links: https://openjdk.java.net/jeps/394 https://guide.elm-lang.org/types/pattern_matching.html https://docs.vavr.io/#_pattern_matching

O  que seus testes automatizados dizem? E as entregas frequentes? Como as retrospectivas podem conduzir pra melhoria contínua? Neste episódio falamos sobre feedback, um dos valores da Programação Extrema. Participantes: Marcio Frayze David [email protected] https://twitter.com/marciofrayze https://segunda.tech https://masto.donte.com.br/web/accounts/138458 https://linkedin.com/in/marcio-frayze https://dev.to/marciofrayze Julianno Martins Silva [email protected] https://twitter.com/juliannoms https://linkedin.com/in/juliannoms Links: http://www.extremeprogramming.org/values.html https://explainagile.com/agile/xp-extreme-programming/values/feedback/ https://wiki.c2.com/?ExtremeValues https://www.desenvolvimentoagil.com.br/xp/valores/feedbœack Livros https://www.goodreads.com/book/show/67833.Extreme_Programming_Explained https://www.goodreads.com/book/show/67839.Planning_Extreme_Programming https://www.goodreads.com/book/show/9737235-extreme-programming

Como verificar o impacto de uma mudança? Teste em produção? Conhece o teste A/B? Sabe quais são os objetivos de um teste A/B? Participantes: Keyle Barbosa de Menezes   [email protected]   https://www.linkedin.com/in/keylebarbosa/ Pedro Ivo Oliveira da Cruz   [email protected]   eu só trabalho aqui   Marco Porcho [email protected]   https://medium.com/@porcho   https://www.linkedin.com/in/marco-porcho   Marcio Frayze David   [email protected]   https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze   https://dev.to/marciofrayze Julianno Martins Silva   [email protected]   https://twitter.com/juliannoms   https://linkedin.com/in/juliannoms Links: Webinar: A/B Testing 101 by Booking.com Product Manager, Saurav Roy - https://www.youtube.com/watch?v=di2e1QpKYUY   Estudo de caso de testes A/B aplicados no app Secret Escapes - https://www.optimizely.com/customers/secret-escapes/   How to Run A/B Tests Successfully by Vice Media Product Manager - https://www.youtube.com/watch?v=NsiDwGntnpA&t   Curso de Teste ab da Udacity: https://www.udacity.com/course/ab-testing--ud257   Testes ab x Testes Multivariados: https://www.nngroup.com/videos/a-b-testing-vs-multivariate/  

Quanto de coragem é preciso no desenvolvimento de software? Como seu time encara os problemas e medos do dia a dia? Neste episódio falamos de Coragem, um  dos valores da Programação Extrema. Participantes: Marcio Frayze David [email protected] https://twitter.com/marciofrayze https://segunda.tech https://masto.donte.com.br/web/accounts/138458 https://linkedin.com/in/marcio-frayze Julianno Martins Silva [email protected] https://twitter.com/juliannoms https://linkedin.com/in/juliannoms Links: https://www.desenvolvimentoagil.com.br/xp/valores/coragem https://en.wikipedia.org/wiki/Extreme_programming http://www.extremeprogramming.org/rules/collective.html Livros sobre Extreme Programming: Extreme Programming Explained:  https://www.goodreads.com/book/show/67833.Extreme_Programming_Explained Planning Extreme Programming:  https://www.goodreads.com/book/show/67839.Planning_Extreme_Programming Extreme Programming:  https://www.goodreads.com/book/show/9737235-extreme-programming

Conhece Up/Down Casting? Conceitos de Produtor e Consumidor em Generics? Como  acontece a hierarquia de tipos com tipos genéricos? Play no p de  Podcast. Participantes:   Marcio Frayze David   [email protected]   https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze   Julianno Martins Silva [email protected] https://twitter.com/juliannoms https://linkedin.com/in/juliannoms Links: Generics no Java: https://docs.oracle.com/javase/8/docs/api/java/util/List.html   https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html   https://docs.oracle.com/javase/tutorial/java/generics/upperBounded.html   https://docs.oracle.com/javase/tutorial/java/generics/lowerBounded.html   https://docs.oracle.com/javase/tutorial/java/generics/unboundedWildcards.html   https://medium.com/omnius/wildcards-in-java-generics-part-1-3-dd2ce5b0e59a   https://medium.com/omnius/covariance-in-java-return-types-part-2-3-a5bf1d9c63fa    https://medium.com/omnius/wildcards-in-java-generics-part-3-3-8f7f5ebea1a5   Generics no Kotlin:   https://medium.com/android-dev-br/generics-e-variance-em-kotlin-in-out-t-ca5ca07c9fc5   Generics no .NET:   https://docs.microsoft.com/en-us/dotnet/standard/generics/covariance-and-contravariance   https://docs.microsoft.com/pt-br/dotnet/standard/generics/covariance-and-contravariance  

Conhece "type parameter"? Utiliza no reuso de código? Em quais cenários? Neste episódio falamos sobre o básico de "Generics". Play no p de Podcast! Participantes Marcio Frayze David   [email protected]   https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze   Julianno Martins Silva   [email protected]   https://twitter.com/juliannoms   https://linkedin.com/in/juliannoms   Links: Generics no Java:   https://docs.oracle.com/javase/tutorial/java/generics/why.html     https://www.baeldung.com/java-generics   Generics no .NET:   https://docs.microsoft.com/en-us/dotnet/standard/generics   https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/generics/   Generics no Type Script:   https://www.typescriptlang.org/docs/handbook/2/generics.html   Generics no Python:   https://mypy.readthedocs.io/en/stable/generics.html   Duck Typing:   https://en.wikipedia.org/wiki/Duck_typing   Livro Effective Java (possui um capítulo só sobre Generics):   https://www.goodreads.com/book/show/34927404-effective-java   Generics na linguagem Dart:   https://dart.dev/guides/language/language-tour#generics   Type Erasure (Java):   https://docs.oracle.com/javase/tutorial/java/generics/genTypes.html  

Como publicar alterações no BD? Como sincronizar a alteração do BD com a nova versão da aplicação? Já ouviu falar de "Migrations"? Play no p de Podcast! Participantes Marcio Frayze David [email protected] https://twitter.com/marciofrayze https://segunda.tech https://masto.donte.com.br/web/accounts/138458 https://linkedin.com/in/marcio-frayze Julianno Martins Silva [email protected] https://twitter.com/juliannoms https://linkedin.com/in/juliannoms Links: Artigo da Amanda Sposito. Migrations in databases with large amount of data: http://blog.plataformatec.com.br/2019/02/migrations-in-databases-with-large-amount-of-data/ Criando íncides no PostgreSQL sem lock: https://www.postgresql.org/docs/9.1/sql-createindex.html Undo no flyway (não recomendado): https://flywaydb.org/documentation/command/undo Definição de Database refactoring: https://en.wikipedia.org/wiki/Database_refactoring Livro Refactoring Databases: https://www.goodreads.com/book/show/161302.Refactoring_Databases Blue-green deployment: https://martinfowler.com/bliki/BlueGreenDeployment.html Evolutionary Database Design, Pramod Sadalage: https://www.martinfowler.com/articles/evodb.html Boas práticas de Migration em Java na Heroku: https://devcenter.heroku.com/articles/running-database-migrations-for-java-apps Ferramentas de migrations: Java: https://flywaydb.org/ https://www.liquibase.org/ .NET: https://docs.microsoft.com/pt-br/ef/core/managing-schemas/migrations/?tabs=dotnet-core-cli Ruby on rails: https://edgeguides.rubyonrails.org/active_record_migrations.html

Sua aplicação fica lenta com o passar do tempo? Recebe exceções por falta de memória? Pode ser "Vazamento de Memória". Aperte o play e confira! Participantes Marcio Frayze David   [email protected]   https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze   Julianno Martins Silva   [email protected]   https://twitter.com/juliannoms   https://linkedin.com/in/juliannoms   Links: Analisador on-line de logs do GC (identifica possíveis vazamentos): https://gceasy.io/ Visual VM: https://visualvm.github.io/ Try with resources do Java: https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html Git lab memory leads issues: https://duckduckgo.com/?t=ffab&q=gitlab+memory+leak&atb=v223-1&ia=web Memory Leak no Rust: https://doc.rust-lang.org/book/ch15-06-reference-cycles.html#reference-cycles-can-leak-memory Microsoft 70% dos bugs de segurança: https://www.zdnet.com/article/microsoft-70-percent-of-all-security-bugs-are-memory-safety-issues Podcast do Marcio sobre Livros: Outros artigos: https://martinfowler.com/articles/qa-in-production.html https://deepsource.io/blog/exponential-cost-of-fixing-bugs https://developers.redhat.com/blog/2014/08/14/find-fix-memory-leaks-java-application https://www.toptal.com/java/hunting-memory-leaks-in-java https://www.baeldung.com/java-heap-dump-capture https://www.dynatrace.com/news/blog/the-top-java-memory-problems-part-1/

Como seus objetos se  relacionam? Conhece o "Tell Don't Ask"? E o "Train Wreck"? O que isso  tem a ver com encapsulamento? Aperte o play e confira! Participantes Marcio Frayze David   [email protected]   https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze Julianno Martins Silva   [email protected]   https://twitter.com/juliannoms   https://linkedin.com/in/juliannoms Links: Um dos artigos originais onde o termo é criado (Andy Hunt and Dave Thoma), 2003: http://media.pragprog.com/articles/jan_03_enbug.pdf Definição de Tell don't ask, Martin Fowler: https://www.martinfowler.com/bliki/TellDontAsk.html Vídeo (em inglês) com alguns exemplos: https://www.youtube.com/watch?v=ZJ6bH6Df4K8 Texto do Giovanni Bassi: https://www.lambda3.com.br/2009/07/tell-dont-ask-ou-fique-longe-das-minhas-propriedades/ Exemplo TDA: Statement recebe um printer pra impressão do extrato, e não pega o extrato pra imprimir https://github.com/sandromancuso/Bank-kata/blob/master/src/main/java/org/craftedsw/domain/Statement.java Screencast Sandro Mancuso https://www.youtube.com/watch?v=XHnuMjah6ps https://www.youtube.com/watch?v=gs0rqDdz3ko https://www.youtube.com/watch?v=R9OAt9AOrzI http://www.mockobjects.com/2006/10/tell-dont-ask-and-mock-objects.html?m=1 Artigo sobre TDD que cita TDA https://martinfowler.com/articles/mocksArentStubs.html#DesignStyle Link sobre TrainWreck https://wiki.c2.com/?TrainWreck

Qual a documentação  necessária pro sistema? O código fonte é o suficiente? Conhece 'código  como documentação'? Vem trocar ideia com a gente. Participantes Marcio Frayze David    [email protected]    https://twitter.com/marciofrayze   https://segunda.tech   https://masto.donte.com.br/web/accounts/138458   https://linkedin.com/in/marcio-frayze   Julianno Martins Silva    [email protected]    https://twitter.com/juliannoms https://linkedin.com/in/juliannoms Links: Artigo do Fowler: https://www.martinfowler.com/bliki/CodeAsDocumentation.html Artigos do Jack Reeves recomendados pelo Fowler: https://www.developerdotstar.com/mag/articles/reeves_design.html https://www.developerdotstar.com/mag/articles/reeves_13yearslater.html https://www.developerdotstar.com/mag/articles/reeves_originalletter.html Spring REST Docs: https://spring.io/projects/spring-restdocs Vídeo da Punk do DevOps falando sobre padrões nas mensagens de commit: https://www.youtube.com/watch?v=vXOVl6TxuOE&t=388s Outra convenção para mensagens de commit: https://www.conventionalcommits.org/pt-br/v1.0.0/ Mais uma convenção para mensagens de commit: https://karma-runner.github.io/6.1/dev/git-commit-msg.html Artigo contrário à  nossa ideia, com baixa abstração: https://medium.com/it-dead-inside/self-documenting-code-is-mostly-nonsense-1de5f593810f