Example requirements document from From http://csis.bits-pilani.ac.in/faculty/yash/OOAD/classes
Design the software to handle reservations at Blue Lake Resort. The resort comprises several cottages and two meeting rooms. Cottages can comprise from one to three beds. The first meeting room has a capacity of 20 persons, the second, 40 persons. Cottages can be booked by the night; meeting rooms can be booked by the hour. Rates for cottages are expressed per person, per night; rates for meeting rooms are expressed per hour.

Clients can book cottages and meeting rooms in advance by providing a phone number and a valid credit card information. Customers can express preferences for specific cottages. Cancellation of reservations is possible but requires 24 hours notice. An administrative charge applies to all cancellations. Every morning, a summary of the bookings for the previous day is printed out and the related information is erased from the computer; a list of the cottages and meeting rooms that will require cleaning is printed.