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.
How many input classes can be distinguished when applying equivalence partitioning to the "Tax System" specification?
To determine the number of input classes using equivalence partitioning, we need to consider different conditions and break them into distinct groups. Here are the partitions for the given conditions: (1) Salary less than 20,000, (2) Salary 20,000 or more, (3) Married, (4) Not married, (5) Children less than 2, (6) Children between 2 and 4 (inclusive), (7) Children 5 or more. Combining these, we get the following combinations of conditions relevant to the specification: 1. Salary < 20,000, Married, Children < 2; 2. Salary < 20,000, Married, Children 2-4; 3. Salary < 20,000, Married, Children >= 5; 4. Salary < 20,000, Not Married; 5. Salary >= 20,000. Since the question relates to people with a salary of less than 20,000 and who are married specifically, disjoint conditions include children in various ranges (<2, 2-4, >=5). Considering this leads to a total of 7 distinct input classes.
why not 7? 20000 (yes + no) married (yes + no) child (<2, 2-4, >=5)