a representative end user or two, a
human-factors engineer, and the key original analysts or designers of the
program. Including the original designers does not violate principle 2
from Table 2.1, ‘‘Vital Program Testing Guidelines,’’ recommending
against testing your own program, since the program has probably passed
through many hands since it was conceived. Therefore, the original designers
do not have the troublesome psychological ties to the program
that motivated this principle.