A software requirement states "Calcuate the Check Date equal to two days from the transaction date. For example, if processed on 10/03, the check date should be 10/05. The software should consider month changes and year changes". The program works perfectly and always produces check dates two days in advance. Once implemented, some customers are complaining that they are receiving a check dated on Saurday or Sunday. One even called about receiving a check dated on Christmas. The customer service team is asking the development team to "fix" the program.

In this example:

a The project manager failed

b A software defect is produced

c A requirement enhancement is needed

d A calendar function is not working properly

e A software bug is produced