ATA: ISTQB Advanced Level Test Analyst

By ISTQB · Question Mode

QuestionQ38

Test Analysis and Test Design

Tax system —

A tax system must be updated because of new legislation. For a person who earns a salary of less than 20.000 and is married, the tax must be recalculated. If that person also has more than two and fewer than five children, an additional 10% reduction applies.

How many cases are needed to test the Tax system specification using a decision table that is not collapsed?

Explanation

A non-collapsed decision table contains one rule for every combination of its three true/false conditions: salary below 20.000, married status, and having more than two but fewer than five children. Three binary conditions require 2³, or 8, test cases.

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