
Ideas, Subjects, and Cycles as Lenses for Understanding the Software Design Process ◾ 195
© 2010 Taylor & Francis Group, LLC
1. Early on, Cycle 3 (0:09:37) shows the designers talking about how cars are added to
the intersection, but at this point, they are conceptualizing each intersection in isola-
tion, and roads are not considered.
2. In Cycle 6, roads are rst acknowledged as being rst-class entities, spurred by the
acknowledgment that “the simulation is not supposed to be just one [intersection]”
(0:37:48). But at this point, over 30 minutes’ worth of design has taken place; the
intersections, trac, and controller have been ...