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TESTE DEIN WISSEN

Define the term Usability according to ISO-9241(2pt)

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TESTE DEIN WISSEN

Usability defines the area to which a product, system or service can be used by specific users to achieve specific goals with effectiveness, efficiency, and satisfaction while enjoying the experience

effectiveness: users can complete their goals with a high degree of accuracy and completeness

efficiency: It is all about speed. How fast can the user get the job done?

satisfaction: the flexibility, comfort and acceptability of the work system to its users

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TESTE DEIN WISSEN

Please name 4 goals of Usability testing

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TESTE DEIN WISSEN

GOALS

– Validate your prototype

– Provide a better user experience

– Confirm your product meets expectations

– Minimize risks

– Increase customer loyalty and sales

– Reduce costs

– Stay competitive

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TESTE DEIN WISSEN

Name 3 usability testing restrictions/weakness/cons  

(3 pts. short sentences) 

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TESTE DEIN WISSEN

• Tests are no guarantee of reaching something

• Small number of participants rarely reflect the whole target group

• Tests are not always the best option

• Results may not be effective

• Past production could be criticized

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TESTE DEIN WISSEN

Describe the 7 Principles of dialog design
ISO 9241-110 (7pts)

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TESTE DEIN WISSEN

1. Suitability for the task

(Hotel reservation system shows only free rooms for the desired booking time)

2. Self-descriptiveness 

(should make it clear for the user what to do next)

3. Conformity with user expectations (Girokonto)

4. Learnability 

(tutorials and animations)

5. Controllability (“Undo” function)

6. User error robustness

(Error messages should be informative and contain help)

7. User engagement (system presents functions and information in a motivating way) 

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TESTE DEIN WISSEN

Explain 'Thinking aloud' procedure in the context of usability testing (1X2 sentences)

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TESTE DEIN WISSEN

In a thinking aloud test, you ask test participants to use the system while continuously thinking out loud

Challenges

• Inspire users to “think aloud”

• Linked with qualitative observations

• More common formative testing than in

summative testing

• Let people be  comfortable to criticizing an

interface out loud

• Note that the more users talk, the more their

task and time performance may be affected

“reflection session” where users give feedback AFTER outloud session

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TESTE DEIN WISSEN

List 4 aspects should be considered when designing tasks 

(4x1 short sentences or keywords)

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TESTE DEIN WISSEN

• Introduce the user to the test situation with

scenarios

• Using open/specific questions at the end

• Use first impression

• Do not stress the user

• Writing real-life/daily tasks/scenarios

• Do not include any solutions

• Do not set any unsolvable tasks

• Formulate only one goal per task

• Use wording of the target group

• Read tasks aloud

Lösung ausblenden
TESTE DEIN WISSEN

What is the difference between a formative and summative study?

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TESTE DEIN WISSEN

Formative evaluations are applied in a repetitive process to make corrections before production. Focus on resolving which aspects of the design work well or not, and why.

–  Low-fidelity prototypes and During design and development

– Iterative

Summative evaluations are used to evaluate a shipped product in comparison to a benchmark or competitor. It defines how good and effective design performs. 

– Single evaluation

– Too late to influence the design


Compare between them is Summative evaluations whose intentions are to inform the design process, involve getting the high picture and evaluating the overall knowledge of a finished product. Formative evaluations so that the final product has a satisfactory user experience. Summative evaluations occurs usually right before or right after a redesign.

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TESTE DEIN WISSEN

Please describe 3 roles that are important during usability testing (3x1,5 short sentences 4,5pt)

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TESTE DEIN WISSEN

Usability Testing has an important role in the user-oriented design process

  • To observe real-world interactions of real users
  • To check if the product engage user’s expectations 
  • To see how successful users capture the emotions
  • Collect feedbacks
  • Fixing bugs
  • Eventually Improve usability
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TESTE DEIN WISSEN

Define HCI and discuss how it is connected with core informatics, applied informatics, software ergonomics, and socio informatics (7.5 pt)

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TESTE DEIN WISSEN

Human-computer interaction is a multidisciplinary field of study focusing on the design of computer technology and in a particular interaction between human and computers. The multidisciplinary field of HCI is Computer science, cognitive science and human factor engineering

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TESTE DEIN WISSEN

Explain the functional approach to HCI, discussing its assumptions and illustrating it with methods which are usually used  for it (7.5)

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TESTE DEIN WISSEN

In the HCI world, this approach is for understanding users, Starting from an important question such as who are the target people? Primary, secondary, stakeholders. Moreover,

What are they trying to do? How? What are their needs?

The purpose of the functional approach is particularly, increase execution, reduce error and frustration. Concerning the field, it is important to control domains such as air traffic control.

Furthermore Home devices, GUIs, software support systems. Method GOMS is appropriate for the functional approach.

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TESTE DEIN WISSEN

Explain the contextual approach to HCI, discussing its assumptions and illustrating it with methods which are usually used  for it (7.5)

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TESTE DEIN WISSEN

In the HCI world, the core of the contextual design is to understand the users in order to find out their fundamental desires. But these are invisible. The only way to find out about them is by talking with people. Understanding their contexts in a different way. For instance, using an Ethnographic approach to perceive their quality of life such as cultural, social, physical, technological. Moreover using qualitative research also an important approach. The source is

– “From Human Factors to Human Actors”

Lösung ausblenden
TESTE DEIN WISSEN

Please name three types of usability testing?

(keywords 3pt)

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TESTE DEIN WISSEN

USER-BASED

EXPERT-BASED

 AUTOMATED

(SOFTWARE TOOLS)

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Q:

Define the term Usability according to ISO-9241(2pt)

A:

Usability defines the area to which a product, system or service can be used by specific users to achieve specific goals with effectiveness, efficiency, and satisfaction while enjoying the experience

effectiveness: users can complete their goals with a high degree of accuracy and completeness

efficiency: It is all about speed. How fast can the user get the job done?

satisfaction: the flexibility, comfort and acceptability of the work system to its users

Q:

Please name 4 goals of Usability testing

A:

GOALS

– Validate your prototype

– Provide a better user experience

– Confirm your product meets expectations

– Minimize risks

– Increase customer loyalty and sales

– Reduce costs

– Stay competitive

Q:

Name 3 usability testing restrictions/weakness/cons  

(3 pts. short sentences) 

A:

• Tests are no guarantee of reaching something

• Small number of participants rarely reflect the whole target group

• Tests are not always the best option

• Results may not be effective

• Past production could be criticized

Q:

Describe the 7 Principles of dialog design
ISO 9241-110 (7pts)

A:

1. Suitability for the task

(Hotel reservation system shows only free rooms for the desired booking time)

2. Self-descriptiveness 

(should make it clear for the user what to do next)

3. Conformity with user expectations (Girokonto)

4. Learnability 

(tutorials and animations)

5. Controllability (“Undo” function)

6. User error robustness

(Error messages should be informative and contain help)

7. User engagement (system presents functions and information in a motivating way) 

Q:

Explain 'Thinking aloud' procedure in the context of usability testing (1X2 sentences)

A:

In a thinking aloud test, you ask test participants to use the system while continuously thinking out loud

Challenges

• Inspire users to “think aloud”

• Linked with qualitative observations

• More common formative testing than in

summative testing

• Let people be  comfortable to criticizing an

interface out loud

• Note that the more users talk, the more their

task and time performance may be affected

“reflection session” where users give feedback AFTER outloud session

Mehr Karteikarten anzeigen
Q:

List 4 aspects should be considered when designing tasks 

(4x1 short sentences or keywords)

A:

• Introduce the user to the test situation with

scenarios

• Using open/specific questions at the end

• Use first impression

• Do not stress the user

• Writing real-life/daily tasks/scenarios

• Do not include any solutions

• Do not set any unsolvable tasks

• Formulate only one goal per task

• Use wording of the target group

• Read tasks aloud

Q:

What is the difference between a formative and summative study?

A:

Formative evaluations are applied in a repetitive process to make corrections before production. Focus on resolving which aspects of the design work well or not, and why.

–  Low-fidelity prototypes and During design and development

– Iterative

Summative evaluations are used to evaluate a shipped product in comparison to a benchmark or competitor. It defines how good and effective design performs. 

– Single evaluation

– Too late to influence the design


Compare between them is Summative evaluations whose intentions are to inform the design process, involve getting the high picture and evaluating the overall knowledge of a finished product. Formative evaluations so that the final product has a satisfactory user experience. Summative evaluations occurs usually right before or right after a redesign.

Q:

Please describe 3 roles that are important during usability testing (3x1,5 short sentences 4,5pt)

A:

Usability Testing has an important role in the user-oriented design process

  • To observe real-world interactions of real users
  • To check if the product engage user’s expectations 
  • To see how successful users capture the emotions
  • Collect feedbacks
  • Fixing bugs
  • Eventually Improve usability
Q:

Define HCI and discuss how it is connected with core informatics, applied informatics, software ergonomics, and socio informatics (7.5 pt)

A:

Human-computer interaction is a multidisciplinary field of study focusing on the design of computer technology and in a particular interaction between human and computers. The multidisciplinary field of HCI is Computer science, cognitive science and human factor engineering

Q:

Explain the functional approach to HCI, discussing its assumptions and illustrating it with methods which are usually used  for it (7.5)

A:

In the HCI world, this approach is for understanding users, Starting from an important question such as who are the target people? Primary, secondary, stakeholders. Moreover,

What are they trying to do? How? What are their needs?

The purpose of the functional approach is particularly, increase execution, reduce error and frustration. Concerning the field, it is important to control domains such as air traffic control.

Furthermore Home devices, GUIs, software support systems. Method GOMS is appropriate for the functional approach.

Q:

Explain the contextual approach to HCI, discussing its assumptions and illustrating it with methods which are usually used  for it (7.5)

A:

In the HCI world, the core of the contextual design is to understand the users in order to find out their fundamental desires. But these are invisible. The only way to find out about them is by talking with people. Understanding their contexts in a different way. For instance, using an Ethnographic approach to perceive their quality of life such as cultural, social, physical, technological. Moreover using qualitative research also an important approach. The source is

– “From Human Factors to Human Actors”

Q:

Please name three types of usability testing?

(keywords 3pt)

A:

USER-BASED

EXPERT-BASED

 AUTOMATED

(SOFTWARE TOOLS)

Human&Technology

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