Tax system
A tax system needs to be updated due to new legislation. For a person with a salary of less than €
20.000 and who is married, the tax needs to be re-calculated. If the person also has more than two
and less than five children, an additional 10% reduction is applicable.
Applying equivalence partitioning to the “Tax System” specification, which of the following set of
equivalence classes is most effective in testing the processing the number of children?

Consider the following decision table, How many cases are left when this decision table is collapsed?

A temperature unit holds the temperature between 10 degrees Celcius and –10 degrees Celcius. If
the temperature drops below –10 or rises above 10 then an alarm rings. Boundary Value Analysis
tests are drawn up using the approach of two test cases per boundary. The temperatures to be
tested are:

For a tax system the earnings € 4.000 are tax free, the following € 1.500 are charged at 10%, the
following € 28.000 at 20% and the remainder above 40%. All values are rounded to € 1. What test
case could result from a boundary value analysis?

A specification states: “If the fossil is Jurassic in origin then it must be catalogued under Mesozoic
post Triassic and cross referred to politic limestone.
If it is a tooth, then it must be catalogued under Dental remains. If the fossil is both Jurassic in origin
and a tooth it will be catalogued under Mesozoic post Triassic and cross referred to politic limestone
only. ”
The tester analyses this for decision table testing and finds the following conditions and actions:
C1: Jurassic
C2: tooth
A1: Catalogue as Mesozoic post Triassic
A2: Cross refer to politic limestone
A3: Catalogue as
Dental remains
How many test cases will a collapsed decision table have?

A route calculation for a car navigation system has been developed using the following state table:
How many test cases are needed to achieve 0-switch coverage?

How many invalid test cases can be identified from the “Route Calculation” state table provided?
You may assume all actions are different and independent.

A diamond retailer is introducing a new stock taking system. Each diamond is assigned a character
that represents the colour. The valid domain for the character ranges from D to Z. The colour is then
graded using the following scale:
Which of the following test sets will provide the best equivalence partitioning coverage?

Apart from state transition testing, which other specification-based technique would you
additionally choose to test the interfaces between components of “Route Calculation” and thus
typically find different types of defects?
Identify the MOST likely technique from the following list.

Analyzing the requirement, “The system shall allow cash advances of at least 200 Euros for all
supported credit cards. The correct list of credit cards is American Express, Diners, VISA, Mastercard
and Eurocard.” There are arguments to be made for several test design techniques. Which of the
following test design techniques is LEAST likely to be used for identifying test cases for the
requirement?