1. Informatics 121 Software Design I
Lecture 10 André van der Hoek
Duplication of course material for any commercial purpose without the explicit written permission of the professor is prohibited.
November 11, 2018 – 21:23:52
(c) 2006 University of California, Irvine – André van der Hoek

2. © 2006 University of California, Irvine – André van der Hoek
Today’s Lecture
A review of what we learned
Motivation behind the structure of the course
A look forward
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

3. © 2006 University of California, Irvine – André van der Hoek
Defining Design
“Features of shape, configuration, pattern or ornamentation applicable to an article, being features that, in the finished article, can be judged by the eye, but does not include a method or principle of construction” [Designs Act, 1906]
“The imaginative jump from present facts to future possibilities” [Page]
“The optimum solution to the sum of true needs of a particular set of circumstances” [Matchett]
“To conceive or plan out in the mind” [Merriam-Webster]
“A plan or protocol for carrying out or accomplishing something” [Merriam-Webster] …
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

4. Seven Fundamental Dimensions of Design
Goal
Ideas
Representation
Activity
Knowledge
Domain of Use
Domain of Materials
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

5. © 2006 University of California, Irvine – André van der Hoek
Design Diamond
Domain of Materials
Domain of Use
Knowledge
Representation
Ideas
Activity
concern
manipulates
informs
Goal
captures
enhances
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

6. Reflective Conversation with Materials
Domain of Materials
Domain of Use
Knowledge
Representation
Ideas
Activity
concern
manipulates
informs
Goal
captures
enhances
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

7. Divergence, Transformation, Convergence
Domain of Materials
Domain of Use
Knowledge
Representation
Ideas
Activity
concern
manipulates
informs
Goal
captures
enhances
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

8. © 2006 University of California, Irvine – André van der Hoek
Team Communication
Domain of Materials
Domain of Use
Knowledge
Representation
Ideas
Activity
concern
manipulates
informs
Goal
captures
enhances
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

9. Positioning Software Design – Informatics 121
Informatics 121: all the time, in many phases
“design is design”
in other words, do not try to pigeonhole the activity nor the artifact
We must:
stay true to ourselves
recognize when we design
recognize the form of design
adopt the activity and representation best fitting the form of design
use the Design Diamond to properly practice design
regardless of what our colleagues say
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

10. Informatics 121 View of System Design
Booch …
pi calculus
informal drawing
UML
System Design
pseudo code
architecture
text
code
data flow diagrams
Statecharts
JSD
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

11. System and Implementation Design
System Design
describes what the system should do
address the essence of the problem
Implementation Design
describes what the implementer should do
address all of the problem
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

12. Three Goals of Implementation Design
Provide a shared plan to follow
consistency
Ensure the plan meets its recipients’ needs
helpfulness
Ensure the solution is appropriate
effectiveness
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

13. © 2006 University of California, Irvine – André van der Hoek
Practice
Animals, chairs, bridges, and towers
to illustrate aspects of the Design Diamond that you naturally understand and practice when it comes to other disciplines, but need to make explicit in your handling of software design
Google Maps
to promote creative, out-of-the-box thinking in a realistic setting
to promote the importance of choosing the right design notations
to practice systems design
to explicitly work from the perspective of the Design Diamond
Educational Game
to promote the important of choosing the right design notations
to practice systems and implementation design
to practice the “real nitty gritty”
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

14. Posters, Stickies, Presentations, Feedback, …
To expose you to various activities that you can draw on in future when you are faced with a design problem
common in other disciplines
uncommon, but therefore not less important, in software design
To make you think from both the perspective of the designer and someone interpreting the design
To keep you on your toes
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

15. © 2006 University of California, Irvine – André van der Hoek
A Look Forward
Software Design II
additional design exercises
system design and implementation design
broadening of topics
product lines
middleware
reuse
refactoring
design recovery
real-time systems
and…
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

16. © 2006 University of California, Irvine – André van der Hoek
A Look Forward
Software Design II
additional design exercises
system design and implementation design
broadening of topics
product lines
middleware
reuse
refactoring
design recovery
real-time systems
and…
…maybe some more Play-Doh!
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek

17. © 2006 University of California, Irvine – André van der Hoek
In Closing…
Thanks for a fun quarter
If you have feedback on the class, I would love to hear it (both positive and negative; after all, this was a first)
Do not forget to fill out the online course evaluations
November 11, 2018 – 21:23:52
© 2006 University of California, Irvine – André van der Hoek