Scenario “Tax system”
The 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. The functionality of the newly
released tax system is now at the right level. However, there are frequent complaints about nonfunctional issues. In particular:
i the new system does not run on PC’s with VISTA installed
ii it is difficult to update the system quickly when new legislation
must be implemented
iii especially when many users are using the web site, the system
seems to be slow
iv some users enthusiastically use the system but are not able to
complete some of the transactions
Which TWO types of risks are related to complaint (i) and (ii)?
A.
Functionality
B.
Usability
C.
Efficiency
D.
Portability
E.
Maintainability