1. © 2010 University of California, Irvine – André van der Hoek1June 16, 2015 – 21:42:11 Informatics 121 Software Design I Lecture 7 André van der Hoek & Alex Baker Duplication of course material for any commercial purpose without the explicit written permission of the professor is prohibited.

2. Today’s Lecture Silent stickies Design studio II continued © 2010 University of California, Irvine – André van der Hoek2June 16, 2015 – 21:42:11

3. Design Studio II – Part I (Continued) You have identified five key design decisions that the designers made in their design It is now time to construct the essence of the design problem as you see it Using sticky notes, construct the set of key decisions that should be made, relate those decisions, and provide three alternative choices for each decision Group exercise, 1 hour, no talking allowed in the first forty-five minutes © 2010 University of California, Irvine – André van der Hoek3June 16, 2015 – 21:42:11

4. Design Studio II – Part II Read Michael Jackson’s “Representing structure in a software system design” Provide a written document that –contains the key decisions to be made, their relationships, and three alternative choices for each decision, as refined by yourself after today’s exercise –documents which choices align and which not –explicitly makes the decisions by selecting one out of the three choices for each decision, and provide an argument for why you make these choices The result is the essence of your design solution, the part that conceptually solves most, if not all, of the hard problems © 2010 University of California, Irvine – André van der Hoek4June 16, 2015 – 21:42:11

5. Design Studio II – Part II Hand in at the beginning of class, October 26 –bring a second copy for use during the in-class exercise that is to follow This assignment is an individual assignment © 2010 University of California, Irvine – André van der Hoek5June 16, 2015 – 21:42:11