Sorting enables you to target a mailing to individuals in a specific state or ZIP code area.

The UML decision and merge symbols can be distiguished by ____________

a) the number of flowlines entering or exiting the symbol b) whether or not the flowlines have guard conditions c) Both of the above. d) Neither of the above.

Describe informally in what ways the following events di?er from or are similar to transactions with respect to atomicity and durability.

a. A telephone call from a pay phone (Consider line busy, no answer, and wrong number situations. When does this transaction “commit?”) b. A wedding ceremony (Suppose that the groom refuses to say “I do.” When does this transaction “commit?”) c. The purchase of a house (Suppose that, after a purchase agreement is signed, the buyer is unable to obtain a mortgage. Suppose that the buyer backs out during the closing. Suppose that two years later the buyer does not make the mortgage payments and the bank forecloses.) d. A baseball game (Suppose that it rains.)