Chapter 10

1. Full combinatorial tables provide all possible combinations of a set of values with each other. The size of such a table is calculated by multiplying the number of choices being considered ( tested ) for each parameter. A pairwise combinatorial table does not have to incorporate all combinations of every value with all other values. It is "complete" in the sense that somewhere in the table there will be at least one instance of any value being paired up in the same row with any other value. Pairwise tables are typically much smaller than full combinatorial tables; sometimes hundreds or thousands of times smaller.

2. A parameter represents a function that can be performed by the game or the game player. Values are the parameter (function) choices that are available, possible or interesting from a test perspective.

3. Use the template for 7 params to arrive at the table in Figure A.2. The cells with "*" can have either a "Yes" or "No" value and your table will still be a correct pairwise combinatorial table.

4. In the three new rows, just add one instance of each of the remaining parameters. The order is not important since they have already been paired with the other parameters in the original portion of the table. Your new table should resemble the one in Figure A.3. The cells with "*" can have either a "Yes" or "No" value and your table will still be a correct pairwise combinatorial table.

5. You should have used all of the values available for Body Type, Skin Tone, and Face. For this solution they were each listed in order from lowest to highest in the input table. It is sufficient to only use the default, minimum, and maximum values for Height and Weight. They were specified in that same order in the input table. If you correctly fed Allpairs, you should get the tests shown in Figure A.4. The "pairings" column has been left off. If your input table had the parameters in a different order than was used for this solution, check that you have the same number of test cases. 1512 full combinations have been reduced to 44 pairwise tests. If your result doesn't seem right, redo the input table with the ordering described here and try again.

Figure A.2: ESPN NFL 2K5 game options test table with seven parameters.

Figure A.3: ESPN NFL 2K5 game options test table with 2 min value combinations.

Figure A.4: ESPN NFL 2K5 Create Player pairwise combinatorial table.