
Role of Design Spaces in Guiding a Software Design ◾ 39
© 2010 Taylor & Francis Group, LLC
is task presumably relies on common knowledge of trac signal timing, a phenomenon
that almost any driver has experienced. But, as the prompt indicates, experiencing the phe-
nomenon is not the same as understanding how it really works. No team mentioned asking
for outside expertise, perhaps because of the articial setting of the task.
e safety requirement, “combinations of individual signals that would result in crashes
should not be allowed,” was pushed down into the details-yet-to-be-settled by all teams.
Team AD assigned it to the controller ...