Stop making mud pies!

A talk about microservices presented at PDX.rb on June 5, 2018.

Transcript

1. Stop making mud pies!
2. Thank you
5. "Experts [consistently] make better choices." Kathy Sierra, BADASS
7. IP #1 The value of information is using it to choose the better of two alternatives
8. IP #2 Information takes time to propagate because of distance and resistance
9. IP #3 The distribution of information is non-uniform
11. IP #4 Applying information implies change which requires work which has a cost
13. IP #5 Information can be inconsistent, which is a contradiction
15. IP #6 Information is fractal
16. IP #6 Information is fractal
17. IP #7 The leverage of information degrades over time
18. The fundamental problem of working with matter is coordination
19. Properties of Matter
20. Properties of Matter 1. Can't be in two places at once
22. Properties of Matter 1. Can't be in two places at once; two pieces can't be in the same place at the same time
23. Properties of Matter 1. Can't be in two places at once; two pieces can't be in the same place at the same time 2. No action-at-a-distance
24. Properties of Matter 1. Can't be in two places at once; two pieces can't be in the same place at the same time 2. No action-at-a-distance 3. Order of operations is important
25. Are matter and information the same?
26. In theory, there's no difference between theory and practice; in practice, there is.
27. Theory / Explanation 1. Some phenomena that we observe
28. Theory / Explanation 1. Some phenomena that we observe 2. A model of the world
29. Theory / Explanation 1. Some phenomena that we observe 2. A model of the world 3. A cause-and-effect relationship
30. Theory / Explanation 1. Some phenomena that we observe 2. A model of the world 3. A cause-and-effect relationship 4. The accuracy of the model
31. A Good Explanation 1. It makes predictions
32. A Good Explanation 1. It makes predictions 2. Evidence can be used to falsify
33. A Good Explanation 1. It makes predictions 2. Evidence can be used to falsify 3. It is hard to vary
34. Formal System 1. Finite set of symbols
35. Formal System 1. Finite set of symbols 2. Grammar for well-formed formulas
36. Formal System 1. Finite set of symbols 2. Grammar for well-formed formulas 3. A set of axioms which are wffs
37. Formal System 1. Finite set of symbols 2. Grammar for well-formed formulas 3. A set of axioms which are wffs 4. A set of inference rules
38. Definition microservices, n. a network of communicating services which perform computation A B C D E
39. Microservices Properties 1. Substitutability A B C D E A'
40. Microservices Properties 1. Substitutability 2. Replaceability B C D E A'
41. Microservices Properties 1. Substitutability 2. Replaceability 3. Isolation A B C D E
42. Microservices Properties 1. Substitutability 2. Replaceability 3. Isolation 4. Repeating structure A B C D E
43. Hypothesis microservices are a universal and optimal mechanism for working with information
44. Manufacturing Processes 1. Status - where is it?
45. Manufacturing Processes 1. Status - where is it? 2. Testing - will it work?
46. Manufacturing Processes 1. Status - where is it? 2. Testing - will it work? 3. Delivery - Is it done?
47. Information Processes 1. Batch size
48. Information Processes 1. Batch size 2. Cycle time
49. Information Processes 1. Batch size 2. Cycle time 3. Quality of feedback loops
51. Learning means retention. Retention comes from retrieval, not repetition
52. Thank you