Advanced OO Design Programming 2 lecture

1. Programming 2:
Advanced OO Design
Jorge Ressia

2. Programming 2

3. Programming ?

4. Program ?

6. an D ahl
Ole -Joh
Nyg aard
Kr isten

7. Simula 67

8. Simula 67

10. r ing A ward
Tu 2001

12. P eter Naur
1968

13. Christopher
Alexander: Notes on
the Synthesis of Form
1964
NATO Software Engineering Conference
1969

14. Christopher
Alexander: Notes on
the Synthesis of Form
1964
NATO Software Engineering Conference
1969
P eter Naur
1969

15. Programming as
a Theory Building

16. Programming as
a Theory Building
P eter Naur
1985

18. g Aw ard
Turin 2005

20. Alan Kay

21. Put all this together
Alan Kay

22. Simula
Programming as a Theoty
building
Christopher Alexander
Biology

23. We need a new
metaphor

24. OOP

25. Object-oriented programming
Smalltalk 1980

26. Object-oriented programming
Smalltalk 1980
r ing A ward
Tu 2003

27. Program ?

28. Program ?
Computational
simulation of a
domain

29. Program ?
Computational
simulation of a
domain

30. Problem Domain
Computational Model
Reality

31. Problem Domain
Computational Model
Semantic Gap

32. OOP

33. Program for OOP?

34. Program for OOP?
Set of object that
collaborate
sending

35. Program for OOP?
Set of object that
collaborate
sending

36. Let’s Model:
Model a system which prints the invoices for the
customers of a Telco. There are 3 different types
of calls: locals, nationals and internationals.
The cost of an international call is $2 per minute
The cost of a national call is $1.50 per minute
The cost of a local call depends if it was done
during peak hour or not. Peak hour cost is $1 per
minute, not peak hour cost is $0.50 per minute.