![Starbucks (v2)
Select Coffee Type (Hot/Cold) [ cold serve with ice ]
Select Size of cup (S,M,L)
(S) Cup -> Coffee
(M) Cup -> Coffee x 2
(L) Cup -> Coffee x 3
S = 100, M = 120, L = 150, Hot/Cold = Same price](https://image.slidesharecdn.com/codingdefinesreality-161109140328/85/Coding-defines-reality-55-320.jpg)
![Starbucks (v3)
Select Coffee Type (Hot/Cold) [ cold serve with ice ]
Americano [ Coffee + Water ]
Cappuccino [ Coffee + Milk + Whip the milk ]
Latte [ Coffee + Milk ]
Select Size of cup (S,M,L)
(S) Cup -> Coffee
(M) Cup -> Coffee x 2
(L) Cup -> Coffee x 3
S = 100, M = 120, L = 150, Hot/Cold = Same price, Latte +10, Cappucino + 20](https://image.slidesharecdn.com/codingdefinesreality-161109140328/85/Coding-defines-reality-56-320.jpg)
Coding defines reality
- 1. Coding De鍖nes Reality Code Mania #101 @varokasBIGBEARS.
- 3. Design
- 4. Design Creating Solutions based on 1. Requirements 2. Desired Properties
- 5. Available Reliable Performance Maintainable Reusable Usable
- 8. Design is very easy Knowing what you want is very hard
- 12. Contextual Force
- 15. Johnny Appleseed Type a quote here.Force Force Force Force Force Force Force Force Design
- 20. Feel the force! Do not put in one that does not exist
- 21. Patterns
- 22. Design Patterns
- 23. Patterns
- 24. The Pattern is in the problem
- 25. Johnny Appleseed Type a quote here. Pattern Problem
- 26. Don't Solve the Problem. Discover the Pattern
- 27. Emergent Design Change from Create Solutions to Discover Solutions
- 28. Discovering Techniques Code Properties Analysis Commonality Variability Analysis Programming by Intention Tests (TDD)
- 30. Commonality Variability Analysis What is in Common? What Varies? Under a certain Context of Use
- 32. CVA Exercise (Pen-Pencil) Pen write with ink can't erase Pencil write with lead can erase ? write cylinder can put in a box breakable ....
- 33. CVA Exercise (Pen-Pencil) Pen write with ink can't erase Pencil write with lead can erase WritingTool write cylinder can put in a box WritingUser
- 34. CVA Exercise (Pen-Pencil) Pen write() { //inkImpl } Pencil write() { //leadImpl } WritingTool write() WritingUser
- 35. CVA Exercise (Pen-Pencil) Pen write() { //inkImpl } Pencil write() { //leadImpl } WritingTool write() interface WritingTool { def write() } class Pen extends WritingTool { def write() { //ink impl } } class Pencil extends WritingTool { def write() { //lead impl } }
- 36. CVA Exercise (Pen-Pencil) Pen write() { //inkImpl } Pencil write() { //leadImpl } WritingTool write() WritingUser
- 37. CVA Exercise (2) There are two types of shape (Circle, Square) There are two types of writer (Pen, Pencil) Each shape can print itself on different writers
- 38. CVA Exercise (2) Pen write() { //inkImpl } Pencil write() { //leadImpl } Writer write() There are two types of shape (Circle, Square) There are two types of writer (Pen, Pencil) Each shape can print itself on different writers
- 39. CVA Exercise (2) Pen write() { //inkImpl } Pencil write() { //leadImpl } Writer write() Square Shape There are two types of shape (Circle, Square) Circle
- 40. CVA Exercise (2) Pen write() { //inkImpl } Pencil write() { //leadImpl } Writer write() Square Shape print() Each shape can print itself on different writers Circle
- 41. Programming by Intention "So what do we want to do"?
- 42. Perspective Conceptual Speci鍖cation Implementation
- 43. Starbucks Create a software for cashier and barista A program accepts order from user Retrieve cost based on the order A program shows the barista what to do
- 44. Starbucks A program creates order from user Retrieve cost based on the order A program shows the barista what to do order = user.createOrder() cost = order.getCost() inst = order.whatToDo()
- 45. Starbucks Select Size of cup (S,M,L) (S) Cup -> Coffee (M) Cup -> Coffee x 2 (L) Cup -> Coffee x 3 S = 100, M = 120, L = 150 order = user.createOrder() { selectSize() } cost = order.getCost() inst = order.whatToDo()
- 46. Starbucks Select Size of cup (S,M,L) (S) Cup -> Coffee (M) Cup -> Coffee x 2 (L) Cup -> Coffee x 3 S = 100, M = 120, L = 150 M coffee() { //2 } price() { //120 } Cup coffee() price() S coffee() { //1 } price() { //100 } L coffee() { //3 } price() { //150 }
- 47. Starbucks order = user.createOrder() { selectSize() } cost = order.getCost() { order.getCup().getPrice() }M coffee() { //2 } price() { //120 } Cup coffee() price() S coffee() { //1 } price() { //100 } L coffee() { //3 } price() { //150 } Order
- 48. Closing Thoughts
- 49. When does design starts? When does it end?
- 54. Other slides
- 55. Starbucks (v2) Select Coffee Type (Hot/Cold) [ cold serve with ice ] Select Size of cup (S,M,L) (S) Cup -> Coffee (M) Cup -> Coffee x 2 (L) Cup -> Coffee x 3 S = 100, M = 120, L = 150, Hot/Cold = Same price
- 56. Starbucks (v3) Select Coffee Type (Hot/Cold) [ cold serve with ice ] Americano [ Coffee + Water ] Cappuccino [ Coffee + Milk + Whip the milk ] Latte [ Coffee + Milk ] Select Size of cup (S,M,L) (S) Cup -> Coffee (M) Cup -> Coffee x 2 (L) Cup -> Coffee x 3 S = 100, M = 120, L = 150, Hot/Cold = Same price, Latte +10, Cappucino + 20