Object-Oriented and Classical Software Engineering 8th Edition by Stephen Schach

Exercise 3

Consider the following recipe for grilled pockwester. Ingredients:
The night before, take one lemon, squeeze it, strain the juice, and freeze it. Take one large onion and three shallots, dice them, and grill them in a skillet. When clouds of black smoke start to come off, add 2 cups of fresh orange juice. Stir vigorously. Slice the lemon into paper-thin slices and add to the mixture. In the meantime, coat the mushrooms in flour, dip them in milk, and then shake them in a paper bag with the bread crumbs. In a saucepan, heat 1/2 cup of Pouilly Fuisse. When it reaches 170°, add the sugar and continue to heat. When the sugar has caramelized, add the mushrooms. Blend the mixture for 10 minutes or until all lumps have been removed. Add the eggs. Now take the pockwester, and kill it by sprinkling it with frobs. Skin the pockwester, break it into bite-sized chunks, and add it to the mixture. Bring to a boil and simmer, uncovered. The eggs previously should have been vigorously stirred with a wire whisk for 5 minutes. When the pockwester is soft to the touch, place it on a serving platter, sprinkle with Parmesan cheese, and broil for not more than 4 minutes.
Determine the ambiguities, omissions, and contradictions in the preceding specification. (For the record, a pockwester is an imaginary sort of fish and frobs is slang for generic hors d'oeuvres.)