Answer Sketches

• Problem 8.4. or 8.5 (pick one here).
  Answers depend on the program/spec you selected to work. But the attention should be on the decision points, and the partitions derived accordingly.

• Problem 9.4.
  Answer Key:
  The boundary is shared between A-B, B-C, and A-C pairs (A for "<"; B for "="; and C for ">").

• Sample midterm exam question IV.
  Answer Key:
  • 1a. concatenation: TT, TF, FF, FT
  • 1b. nesting: TT, TF, F-
  • 2. each branch with probability, and the overall probability for a combination is the product of its probabilities of the branches involved. (in fact, this is the so called "implicity" OP)
• Sample midterm exam question V.
  Answer Key:
  • EPC: draw the bounding boxes for each shape and place test points in corners
  • Weak N X 1: 2 ON and 1 OFF for each boundary
  • Weak 1 X 1: 1 ON and 1 OFF for each boundary
  • For Weak Nx1 and 1x1 above, remember that the circle consists of only one boundary.