These are the slides from Robert "Uncle Bob" Martin's talk at the Chicago Day of Mobile event held in March 2010. Slides posted with permission from Bob.

1. Dynamic Languages
are
The Future
Robert C. Martin
Object Mentor Inc.
Copyright © 2010 by Robert C. Martin
All Rights Reserved.
Tuesday, March 9, 2010

2. Static Languages Rule.
Tuesday, March 9, 2010

3. 1980: C vs. Pascal
Tuesday, March 9, 2010

4. 1986: C++, A “Better” C
Tuesday, March 9, 2010

5. 1990s: C++ vs Smalltalk
Productivity vs. Safety
Tuesday, March 9, 2010

6. Why are Dynamic Languages
more Productive?
OO.
Tuesday, March 9, 2010

7. Dependency Management
and
DIP
Tuesday, March 9, 2010

8. Dependency Inversion
 Source code dependencies oppose the flow of control
Caller
Flow of Control
Interface
Callee
Tuesday, March 9, 2010

9. The Ultimate Problem of Static Typing.
Tuesday, March 9, 2010

10. Dynamically Typed Solution
 All dependencies are run-time only.
 Dashed lines don’t know type.
 Solid lines know type.
Shape
Factory
Application
make_square
make_circle
Square Circle
Tuesday, March 9, 2010

11. Fewer lines. More Flexible.
Productive.
Tuesday, March 9, 2010

12. Productivity of Languages.
 http://barnesc.blogspot.com/2006/05/programming-language-productivity.html
Tuesday, March 9, 2010

13. Productivity of Languages.
 http://wwwipd.ira.uka.de/~prechelt/Biblio/jccpprtTR.pdf
Tuesday, March 9, 2010

14. But, in the end, safety won.
Tuesday, March 9, 2010

15. 1999: TDD
Tuesday, March 9, 2010

16. The Three Laws
Tuesday, March 9, 2010

17. The Litany of Benefits.
Tuesday, March 9, 2010

18. Professionalism and TDD
Tuesday, March 9, 2010

19. TDD safety replaces Static
safety?
Tuesday, March 9, 2010

20. fin
• unclebob @ objectmentor.com
• fitnesse.org
• cleancodeproject.com
Tuesday, March 9, 2010

21. “Too easy to make a mess”
-- Ward Cunningham
Tuesday, March 9, 2010

22. 20 years wandering in the
wilderness.
Tuesday, March 9, 2010