You are assigned to a test team to write test cases for their retail call center application. Your analysis estimates a need for approximately 2,000 test cases. Your test team consists of experienced business users, who have helped with testing on an on-going basis for several years. The application that you are assigned to test is continually being updated to meet market and customer requirements.
What is recommended in this situation?
You are testing the processing of a critical traffic control system to which various regulations apply The processing of the input variables is dependent
on defined ranges within which the actual retrieved data values can lie.
Which of the following black-box test techniques should you use to test the processing functionality of this system?
You are working on a hand held product that will be used by carpet salespeople to create estimates while the salesperson is at the customer's location. The carpet installation prices are different based on how much carpet the customer will be buying. If the customer is buying enough only for a small room (less than 20 square yards) the cost to install is $5 a square yard. For a medium room (less than 40 square yards) the cost to install is $4 a square yard. For a large room (40 square yards or more) the cost to install is $2 a square yard. Two small rooms or one small room plus a set of stairs is priced at the medium room price. Two medium rooms or one medium room plus a set of stairs is priced at the large room price.
Which of the following is the smallest set of test conditions to provide minimum coverage of the equivalence partitions?
You are a Test Analyst in the banking domain. You have received the following requirement: "The system shall allow cash advances of at least 200 Euros for all supported credit cards. The following credit cards are supported: American Express, Diners, Visa, Mastercard and Eurocard.
Which one of the findings described below is true regarding this requirement?
The following decision table shows the conditions/actions that are handled by the current system regarding taking credit cards for reservations.
The customer has decided that credit cards are too high risk and wants to change to accepting only debit cards. Debit cards have to be valid and also require a valid PIN in order to be accepted. Debit cards require purchase amount approval in order to be accepted. Given these changes, how many test cases will be needed to provide 100% coverage of the decision table?
A decision table is a technique that shows the possible combinations of conditions and actions for a given problem. To achieve 100% coverage of the decision table, all the combinations of conditions must be tested. The decision table has four conditions: debit card valid, PIN valid, amount approved, and dates available. Each condition has two possible values: yes or no. Therefore, the number of test cases for the decision table is 2^4 = 16. However, some of these test cases are invalid or redundant, as they do not reflect the logic of the problem. For example, if the debit card is not valid, then the PIN and the amount are irrelevant. Similarly, if the PIN is not valid, then the amount is irrelevant. Therefore, these test cases can be eliminated from the decision table. After eliminating the invalid or redundant test cases, only eight test cases remain, as shown in the table below:
Table
Debit card valid
PIN valid
Amount approved
Dates available
Actions
No
No
No
No
Reject reservation
No
No
No
Yes
Reject reservation
No
No
Yes
No
Reject reservation
No
No
Yes
Yes
Reject reservation
Yes
No
No
No
Reject reservation
Yes
No
No
Yes
Reject reservation
Yes
No
Yes
No
Reject reservation
Yes
No
Yes
Yes
Reject reservation
Yes
Yes
No
No
Prompt for lower purchase
Yes
Yes
No
Yes
Prompt for lower purchase
Yes
Yes
Yes
No
Prompt for different date
Yes
Yes
Yes
Yes
Create reservation
Reference=
ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst1, page 2
Decision tables - IBM2, section ''Decision table overview''
