CEN 3721 SCRIPTED EXAMS ANSWERS AND
QUESTIONS SET A+
✔✔(Lecture 9: Usability Testing) What are some qualities of usability objectives? - ✔✔1.
They were created during user/task analysis and product scoping
2. They must be measurable
3. Should indicate: Type of user, Task to be performed, and specific performance
criteria
✔✔(Lecture 9: Usability Testing) Good usability is indicated by? - ✔✔1. Ease of learning
- How fast can a novice learn to accomplish basic tasks?
2. Efficiency of use- How fast can an experienced user accomplish tasks?
3. Easy to remember - can a user remember enough to use it effectively the next time?
4. Error frequency and severity - How often do users make errors, how serious are
these errors, and how do users recover from these errors?
5. Subjective satisfaction - How much does the user like using the system?
✔✔(Lecture 9: Usability Testing) Creating the test plan is basically - ✔✔Explaining what
you are testing and how you will conduct the test
✔✔(Lecture 9: Usability Testing) What are the 6 things to consider when creating the
test plan? - ✔✔1. Purpose
2. Problem Statement/Test Objectives
3. User profile
4. Method
5. Task List
6. Test Environment/Equipment
,✔✔(Lecture 9: Usability Testing) What are the 4 basic participant documents? - ✔✔1.
Consent form
2. Entrance questionnaire
3. Task based questionnaire
4. Exit questionnaire
✔✔(Lecture 10) What is a graphical input device (GID)? - ✔✔It is a mechanism for
communicating information.
✔✔Interpret this notation sequence: Shift↓n Control ↓ k Shift ↑ w Control - ✔✔1. Press &
hold shift
2. tap n
3. press and & hold control (while shift is still pressed)
4. tap k
5. release shift
6. tap w
7. release control
✔✔(Lecture 10) What is a mode? - ✔✔It is the system's current state that is manifested
by how an interface responds to a gesture.
✔✔(Lecture 10) What is a gesture? - ✔✔It is a sequence of human actions completed
as a set
✔✔(Lecture 10) What is chunking? - ✔✔It is combining a sequence of actions into a
gesture.
✔✔(Lecture 10) What are some problems with modes? - ✔✔1. Toggle can be
problematic
2. Caps lock key: how do you know when it is on?
3. How much of a problem is this?
✔✔(Lecture 10) What 3 ways does Norman list to minimize mode errors? - ✔✔1. Do not
have modes
2. Ensure that mods are distinctly marked
, 3. Ensure that the commands required by different modes are not the same, so that a
command issued in the wrong mode will not lead to problems
✔✔(Lecture 10) What is the range of a gesture? - ✔✔The set of states in which a
gesture(s) has a particular interpretation
✔✔(Lecture 10) What is persistence of modes? - ✔✔When you enter a mode, does the
program stay in that mode indefinitely or does it return to the previous state after one
command?
✔✔(Lecture 10) What is the general rule of modes? - ✔✔Modes that vanish after a
single use generally cause fewer errors than modes that persist
✔✔(Lecture 10) What is a Spring-Loaded mode? - ✔✔A mode in which one must
activate and hold a control while performing another action.
✔✔(Lecture 10) What are adaptive menus adaptive palettes? - ✔✔It makes the favored
( or most often used) item be at the top of the menu or palette
✔✔(Lecture 10) Quasimodes should be reserved for? - ✔✔Control functions
✔✔(Lecture 10) What are visible interface feature? - ✔✔It is either currently accessible
to a human sense organ or has not yet faded from short term memory.
✔✔(Lecture 10) What does affordance do? - ✔✔It provides strong clues to the
operations of things
✔✔(Lecture 10) What are monotonous interfaces? - ✔✔An interface having only one
way to accomplish a task
✔✔(Lecture 10) What is a modeless interface? - ✔✔A given user gesture has one and
only one result
✔✔(Lecture 11: Quantification) What does GOMS stand for? - ✔✔1. Goals - the user's
goals defined in layman terms
2. Operators - actions that the user executes or that the software allows the user to take
3. Methods - exact, well learned sequences of steps taken to accomplish a goal
4. Selection rules - which method should be used to satisfy a goal
✔✔(Lecture 11: Quantification) In Goms, K means? - ✔✔Press a Key or button
QUESTIONS SET A+
✔✔(Lecture 9: Usability Testing) What are some qualities of usability objectives? - ✔✔1.
They were created during user/task analysis and product scoping
2. They must be measurable
3. Should indicate: Type of user, Task to be performed, and specific performance
criteria
✔✔(Lecture 9: Usability Testing) Good usability is indicated by? - ✔✔1. Ease of learning
- How fast can a novice learn to accomplish basic tasks?
2. Efficiency of use- How fast can an experienced user accomplish tasks?
3. Easy to remember - can a user remember enough to use it effectively the next time?
4. Error frequency and severity - How often do users make errors, how serious are
these errors, and how do users recover from these errors?
5. Subjective satisfaction - How much does the user like using the system?
✔✔(Lecture 9: Usability Testing) Creating the test plan is basically - ✔✔Explaining what
you are testing and how you will conduct the test
✔✔(Lecture 9: Usability Testing) What are the 6 things to consider when creating the
test plan? - ✔✔1. Purpose
2. Problem Statement/Test Objectives
3. User profile
4. Method
5. Task List
6. Test Environment/Equipment
,✔✔(Lecture 9: Usability Testing) What are the 4 basic participant documents? - ✔✔1.
Consent form
2. Entrance questionnaire
3. Task based questionnaire
4. Exit questionnaire
✔✔(Lecture 10) What is a graphical input device (GID)? - ✔✔It is a mechanism for
communicating information.
✔✔Interpret this notation sequence: Shift↓n Control ↓ k Shift ↑ w Control - ✔✔1. Press &
hold shift
2. tap n
3. press and & hold control (while shift is still pressed)
4. tap k
5. release shift
6. tap w
7. release control
✔✔(Lecture 10) What is a mode? - ✔✔It is the system's current state that is manifested
by how an interface responds to a gesture.
✔✔(Lecture 10) What is a gesture? - ✔✔It is a sequence of human actions completed
as a set
✔✔(Lecture 10) What is chunking? - ✔✔It is combining a sequence of actions into a
gesture.
✔✔(Lecture 10) What are some problems with modes? - ✔✔1. Toggle can be
problematic
2. Caps lock key: how do you know when it is on?
3. How much of a problem is this?
✔✔(Lecture 10) What 3 ways does Norman list to minimize mode errors? - ✔✔1. Do not
have modes
2. Ensure that mods are distinctly marked
, 3. Ensure that the commands required by different modes are not the same, so that a
command issued in the wrong mode will not lead to problems
✔✔(Lecture 10) What is the range of a gesture? - ✔✔The set of states in which a
gesture(s) has a particular interpretation
✔✔(Lecture 10) What is persistence of modes? - ✔✔When you enter a mode, does the
program stay in that mode indefinitely or does it return to the previous state after one
command?
✔✔(Lecture 10) What is the general rule of modes? - ✔✔Modes that vanish after a
single use generally cause fewer errors than modes that persist
✔✔(Lecture 10) What is a Spring-Loaded mode? - ✔✔A mode in which one must
activate and hold a control while performing another action.
✔✔(Lecture 10) What are adaptive menus adaptive palettes? - ✔✔It makes the favored
( or most often used) item be at the top of the menu or palette
✔✔(Lecture 10) Quasimodes should be reserved for? - ✔✔Control functions
✔✔(Lecture 10) What are visible interface feature? - ✔✔It is either currently accessible
to a human sense organ or has not yet faded from short term memory.
✔✔(Lecture 10) What does affordance do? - ✔✔It provides strong clues to the
operations of things
✔✔(Lecture 10) What are monotonous interfaces? - ✔✔An interface having only one
way to accomplish a task
✔✔(Lecture 10) What is a modeless interface? - ✔✔A given user gesture has one and
only one result
✔✔(Lecture 11: Quantification) What does GOMS stand for? - ✔✔1. Goals - the user's
goals defined in layman terms
2. Operators - actions that the user executes or that the software allows the user to take
3. Methods - exact, well learned sequences of steps taken to accomplish a goal
4. Selection rules - which method should be used to satisfy a goal
✔✔(Lecture 11: Quantification) In Goms, K means? - ✔✔Press a Key or button
