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Previsão é sobre responder as perguntas
corretas
com um grau alto de certeza
Previsão é uma tentativa de usar um
modelo de predição para determinar a
manifestação de um evento futuro.
“Forecasting is an attempt to use model-
based prediction to determine the
manifestation of a future event.”
- Practical Kanban, Chapter 4, Klaus Leopold
Quando ficará
pronto?usando métodos
quantitativos
incerteza
O futuro não é um só, são inúmeras
possibilidades.
Estrutura de uma previsão
• Uma afirmação sobre um evento futuro ainda desconhecido
• Uma afirmação sobre o nivel de certeza dessa previsão se tornar realidade,
mas não garantida.
• Uma maneira de testar o resultado atual com a previsão feita no passado
Throughput – Vazão do sistema
Seja consistente!
Regressão Linear
Distribuição Normal
50%
95.4%
Flaw of Averages & Percentis de
confiabilidade
Regressão Linear com percentis de
confiabilidade
95% 100%75%
Monte Carlo e Lei de Little
Cookbook
pra começar na segunda
1. Comece a medir a vazão do seu sistema
2. Faça um histograma do resultado
3. Analise e escolha os percentis de
confiança que achar apropriado
4. Faça um burnup chart com previsão
baseada nos percentis escolhidos
5. Repita todos passos continuamente
Obrigado!
danilogarcia0611@gmail.com
danilo-garcia-17153065
@danilog0611
Referências
Forss’s, Hakan (2012) “Spectral Analysis Chart – How to create one in Excel 2010”
https://hakanforss.wordpress.com/2012/11/06/spectral-analysis-chart-how-to-create-one-in-excel-2010/#more-1279
Vacanti, Daniel (2015) “Actionable Agile Metrics for Predictability: An Introduction”.
https://www.amazon.com/Actionable-Agile-Metrics-Predictability-Introduction/dp/098643633X
Magennis, Troy (2017) “Forecasting: Proactive, Informed and Iterative Decision Making”.
https://medium.com/forecasting-using-data
Leopold, Klaus (2017) “Practical Kanban: From Team Focus to Creating Value”.
https://www.amazon.com/Practical-Kanban-Focus-Creating-Value-ebook/dp/B077RZ2JNS
Albino, Raphael (2016) “Why we love metrics? Throughput and Burnup charts”
http://blog.plataformatec.com.br/2016/02/why-we-love-metrics-throughput-and-burnup-charts/
Savage L., Sam (2012) “The Flaw of Averages: Why We Underestimate Risk in the Face of Uncertainty”
https://www.amazon.com/Flaw-Averages-Underestimate-Risk-Uncertainty/dp/1118073754

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Forecasting 101 - Criando previsões da sua entrega sem muito esforço

  • 1.
  • 2. Previsão é sobre responder as perguntas corretas com um grau alto de certeza
  • 3. Previsão é uma tentativa de usar um modelo de predição para determinar a manifestação de um evento futuro. “Forecasting is an attempt to use model- based prediction to determine the manifestation of a future event.” - Practical Kanban, Chapter 4, Klaus Leopold
  • 4. Quando ficará pronto?usando métodos quantitativos incerteza O futuro não é um só, são inúmeras possibilidades.
  • 5. Estrutura de uma previsão • Uma afirmação sobre um evento futuro ainda desconhecido • Uma afirmação sobre o nivel de certeza dessa previsão se tornar realidade, mas não garantida. • Uma maneira de testar o resultado atual com a previsão feita no passado
  • 6. Throughput – Vazão do sistema Seja consistente!
  • 9. Flaw of Averages & Percentis de confiabilidade
  • 10. Regressão Linear com percentis de confiabilidade 95% 100%75%
  • 11. Monte Carlo e Lei de Little
  • 12. Cookbook pra começar na segunda 1. Comece a medir a vazão do seu sistema 2. Faça um histograma do resultado 3. Analise e escolha os percentis de confiança que achar apropriado 4. Faça um burnup chart com previsão baseada nos percentis escolhidos 5. Repita todos passos continuamente
  • 14. Referências Forss’s, Hakan (2012) “Spectral Analysis Chart – How to create one in Excel 2010” https://hakanforss.wordpress.com/2012/11/06/spectral-analysis-chart-how-to-create-one-in-excel-2010/#more-1279 Vacanti, Daniel (2015) “Actionable Agile Metrics for Predictability: An Introduction”. https://www.amazon.com/Actionable-Agile-Metrics-Predictability-Introduction/dp/098643633X Magennis, Troy (2017) “Forecasting: Proactive, Informed and Iterative Decision Making”. https://medium.com/forecasting-using-data Leopold, Klaus (2017) “Practical Kanban: From Team Focus to Creating Value”. https://www.amazon.com/Practical-Kanban-Focus-Creating-Value-ebook/dp/B077RZ2JNS Albino, Raphael (2016) “Why we love metrics? Throughput and Burnup charts” http://blog.plataformatec.com.br/2016/02/why-we-love-metrics-throughput-and-burnup-charts/ Savage L., Sam (2012) “The Flaw of Averages: Why We Underestimate Risk in the Face of Uncertainty” https://www.amazon.com/Flaw-Averages-Underestimate-Risk-Uncertainty/dp/1118073754

Notas del editor

  1. Explicar o que é Flaw of averages a premissa errada é que a curva é normal
  2. Coin Toss
  3. Premissa errada é que a curva é normal - Explicar o que é Flaw of averages
  4. Premissa principal que o futuro vai se comportar igual ao passado Quão arriscado voce quer ser?