The document discusses evaluation frameworks in interaction design. It introduces key concepts like prototypes, evaluation paradigms, and techniques. Low and high fidelity prototyping are described. Evaluation paradigms include quick and dirty evaluations, usability testing, field studies, and predictive evaluation. Common techniques involve observing, asking, and testing users. The DECIDE framework is presented as a process for planning evaluations by determining goals, exploring questions, choosing techniques, and addressing practical and ethical concerns. Pilot studies are recommended to test evaluation plans.
Jeff Belden MD and Janey Barnes PhD co-presented at HIMSS Virtual Conference June 2010. You can hear the audio recording if you are a HIMSS member, available online.
The goal of this presentation is to give attendees a deeper understanding of usability testing so they can leverage it in their own work. The material will shed light on what is important to the research buyer and will help the research provider to better understand how to plan, moderate, and report on a usability study. It will also provide information on where they can go to learn more about this very practical qualitative method.
Kay will cover what a usability test is and when to use it, the key planning steps, the language around it, and the unique insights this method produces. She will also discuss the various approaches a market researcher can take when running a usability study at different points in a product’s development (e.g., concept, early prototype, released product).
Usability testing (or user testing) involves measuring the ease with which users can complete common tasks on your website. The results of the analysis are a huge eye-opener and their implementation often leads to:
Increased sales and task completion and a high rate of return site visitors
A greatly improved understanding of your customers’ needs
A significant reduction in call centre enquiries
A much more user-focused in-house development team Source: http://www.wbcsoftwarelab.com/wbcblog/read-basics-of-usability-testing
How do you plan a successful UX project?
You need to include activities to answer each of
the following questions:
1. What are the business requirements?
2. What are the user requirements?
3. What is the best design solution that meets
both the business and user requirements?
Jeff Belden MD and Janey Barnes PhD co-presented at HIMSS Virtual Conference June 2010. You can hear the audio recording if you are a HIMSS member, available online.
The goal of this presentation is to give attendees a deeper understanding of usability testing so they can leverage it in their own work. The material will shed light on what is important to the research buyer and will help the research provider to better understand how to plan, moderate, and report on a usability study. It will also provide information on where they can go to learn more about this very practical qualitative method.
Kay will cover what a usability test is and when to use it, the key planning steps, the language around it, and the unique insights this method produces. She will also discuss the various approaches a market researcher can take when running a usability study at different points in a product’s development (e.g., concept, early prototype, released product).
Usability testing (or user testing) involves measuring the ease with which users can complete common tasks on your website. The results of the analysis are a huge eye-opener and their implementation often leads to:
Increased sales and task completion and a high rate of return site visitors
A greatly improved understanding of your customers’ needs
A significant reduction in call centre enquiries
A much more user-focused in-house development team Source: http://www.wbcsoftwarelab.com/wbcblog/read-basics-of-usability-testing
How do you plan a successful UX project?
You need to include activities to answer each of
the following questions:
1. What are the business requirements?
2. What are the user requirements?
3. What is the best design solution that meets
both the business and user requirements?
Java programming presentations By Daroko blog
Do not just read java as a programmer, find projects and start making some Money, at DAROKO BLOG,WE Guide you through what you have learned in the classroom to a real business Environment, find java applications to a real business Environment, find also all IT Solutions and How you can apply them, find the best companies where you can get the IT jobs worldwide, Find java contract, Complete and start making some cash, find clients within your Country, refer and get paid when you complete the work.
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Do not just learn and go, apply them in real world.
1. What it is?. Philosophy and Principles.
2. How to use it? methodology and basic tools.
3. Beyond UCD. Alternatives methodologies: Activity Centered Design and Goal Directed Design.
User experience & design user centered analysisPreeti Chopra
UCA is a multistage process which allows designers to analyze and foresee how user is going to use the product. UCA employs proven and objective data-gathering and analysis techniques to develop a clear understanding of who the users are and how they will approach a website or application.
This proposal of work contains details and samples of the user centric design process I follow. I have been trying to find a good graph that represents the process, but at the end I have decided to make my own! ;)
Learn how to use prototyping and usability testing as a means to validate proposed functionality and designs before you invest in development. SOMETIMES there is a huge disconnect between the people who make a product and the people who use it. Usability testing is vital to uncovering the areas where these disconnects happen. In this symposium you will learn the steps to conduct a successful usability test. This includes tips and real life examples on how to plan the tests, recruit users, facilitate the sessions, analyze the data, and communicate the results.
A presentation I made for showing Alcatel-Lucent developers what usability is about and what simple techniques they could use in their development process.
You can easily understand Evaluation Techniques in HCI from this ppt.
Hope you understand in easy way by thoroughly reading this material.
For clear understanding I also give examples of each and every concept.
If you get any knowledge or understanding from this material then, Kindly share further wit your family members and friends, and don't forget to give likes to this material THANKS.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Java programming presentations By Daroko blog
Do not just read java as a programmer, find projects and start making some Money, at DAROKO BLOG,WE Guide you through what you have learned in the classroom to a real business Environment, find java applications to a real business Environment, find also all IT Solutions and How you can apply them, find the best companies where you can get the IT jobs worldwide, Find java contract, Complete and start making some cash, find clients within your Country, refer and get paid when you complete the work.
Not Just a contact, at daroko Blog (www.professionalbloggertricks.com/),you are also being taught how you can apply all IT related field in real world.
Simply Google, Daroko Blog or visit (www.professionalbloggertricks.com/) to Know More about all these service now.
Do not just learn and go, apply them in real world.
1. What it is?. Philosophy and Principles.
2. How to use it? methodology and basic tools.
3. Beyond UCD. Alternatives methodologies: Activity Centered Design and Goal Directed Design.
User experience & design user centered analysisPreeti Chopra
UCA is a multistage process which allows designers to analyze and foresee how user is going to use the product. UCA employs proven and objective data-gathering and analysis techniques to develop a clear understanding of who the users are and how they will approach a website or application.
This proposal of work contains details and samples of the user centric design process I follow. I have been trying to find a good graph that represents the process, but at the end I have decided to make my own! ;)
Learn how to use prototyping and usability testing as a means to validate proposed functionality and designs before you invest in development. SOMETIMES there is a huge disconnect between the people who make a product and the people who use it. Usability testing is vital to uncovering the areas where these disconnects happen. In this symposium you will learn the steps to conduct a successful usability test. This includes tips and real life examples on how to plan the tests, recruit users, facilitate the sessions, analyze the data, and communicate the results.
A presentation I made for showing Alcatel-Lucent developers what usability is about and what simple techniques they could use in their development process.
You can easily understand Evaluation Techniques in HCI from this ppt.
Hope you understand in easy way by thoroughly reading this material.
For clear understanding I also give examples of each and every concept.
If you get any knowledge or understanding from this material then, Kindly share further wit your family members and friends, and don't forget to give likes to this material THANKS.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
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Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
2. The aims
Explain key evaluation concepts & terms based on
prototyping.
Describe the evaluation paradigms & techniques used
in interaction design.
Discuss the conceptual, practical and ethical issues
that must be considered when planning evaluations.
Introduce the DECIDE framework.
4. What is a prototype?
In other design fields a prototype is a
small-scale model:
a miniature car
a miniature building or town
5. What is a prototype?
In interaction design it can be (among other things):
a series of screen sketches
a storyboard, i.e. a cartoon-like series of scenes
a Powerpoint slide show
a video simulating the use of a system
a cardboard mock-up
a piece of software with limited functionality
written in the target language or in another
language
6. Why prototype?
•Evaluation and feedback are very important to
interaction design
•Stakeholders/client can see, hold, interact with a
prototype more easily than a document or a drawing
•Team members can communicate effectively
•You can test out ideas for yourself
•Prototypes answer questions, and support
designers in choosing between alternatives
8. Low-fidelity Prototyping
•Uses a medium which is unlike the final
medium, e.g. paper, cardboard
•Is quick, cheap and easily changed
•Examples:
sketches of screens, task sequences,
etc
index cards
storyboards
‘Wizard-of-Oz’
9. Storyboards
•Often used with scenarios, bringing more
detail, and a chance to role play
•It is a series of sketches showing how a
user might progress through a task using
the device
•Used early in design
11. •Index cards (3 X 5 inches)
•Each card represents one screen
•Often used in website development
Using index cards
12. ‘Wizard-of-Oz’ prototyping
•The user thinks they are interacting with a
computer, but a developer is responding to
output rather than the system.
•Usually done early in design to understand
users’ expectations
13. High-fidelity prototyping
•Uses materials that you would expect to be in
the final product.
•Prototype looks more like the final system than
a low-fidelity version.
•For a high-fidelity software prototype common
environments include Macromedia Director, Flash,
Visual Basic
•Danger that users think they have a full system
14. Low vs High Fidelity
Type Advantages Disadvantages
Low fidelity prototype •Lower development cost •Limited error checking
•Evaluate multiple design
concept
•Poor detail specification
to code to.
•Address screen layout
issues
•Limited usefulness for
usability test
•Navigational and flow
limitation
High fidelity prototype •Fully interactive •More expensive to
develop
•User driven •Time-consuming to
create
•Clearly defines
navigational scheme
•Developers are reluctant
to change something they
have done for hours
•Look and feel of final
product
15. Compromises in prototyping
•All prototypes involve compromises (give and
take)
•For software-based prototyping maybe there is a
slow response? sketchy icons? limited
functionality?
•Two common types of compromise
• ‘horizontal’: provide a wide range of
functions, but with little detail
• ‘vertical’: provide a lot of detail for only a
few functions
•Compromises in prototypes mustn’t be ignored.
18. “Quick and Dirty”
A common practice in which designers informally get
feedback from users or consultants to confirm that
their ideas are in-line with users’ needs and are liked.
Done any time.
The emphasis is on fast input to the design process
rather than carefully documented findings.
19. Usability Testing
Usability testing involves recording typical users’
performance on typical tasks in controlled settings.
As the users perform these tasks they are watched &
recorded on video & their key presses are logged.
This data is used to calculate performance times,
identify errors & help explain why the users did what
they did.
User satisfaction questionnaires & interviews are
used to elicit users’ opinions.
20. Field Studies
Field studies are done in natural settings
The aim is to understand what users do naturally and
how technology impacts them.
In product design field, field studies can be used to:
Identify opportunities for new technology
Determine design requirements
Decide how best to introduce new technology
Evaluate technology in use.
21. Field Studies
Two Approaches:
Outsider: observing and recording what happens as an
outsider looking in.
Insider: participant in study that explores the details of
what happens in a particular setting.
22. Predictive Evaluation
Experts apply their knowledge of typical users, often
guided by heuristics, to predict usability problems.
Note: heuristics- design principles used in practice
Another approach involves theoretically based
models.
A key feature of predictive evaluation is that users
need not be present
Relatively quick & inexpensive
23. Evaluation Techniques
Observing users
Asking users their opinions
Asking experts their opinions
Testing users’ performance
Modeling users’ task performance to predict
the efficacy of a user interface
25. Asking users their opinions
Questions like:
What do you think about the product?
Does it do what you want?
Do you like it?
Does the aesthetic design appeal to you?
Did you encounter problems?
Would you use it again?
26. Asking experts their opinions
Use heuristics to step through tasks
Typically use role-playing to identify problems
It is inexpensive and quick to ask experts
rather than perform laboratory and field
evaluations
27. User Testing
Usually conducted in a controlled environment
Users perform well-defined tasks
Data can be collected and statistically analyzed
28. Modeling users’ task performance
Model human-computer interaction to predict
the efficiency and problems in the design
This is successful for systems with limited
functionality
29. DECIDE: Framework
Determine the goals the evaluation addresses.
Explore the specific questions to be answered.
Choose the evaluation paradigm and
techniques to answer the questions.
Identify the practical issues.
Decide how to deal with the ethical issues.
Evaluate, interpret and present the data.
30. Determining the Goals
What are the goals of the evaluation?
Who wants it and why?
Goals influence the paradigm for the study.
Some examples of goals:
Check that evaluators have understood user needs
Check to ensure that the final interface is consistent.
Investigate how technology affects working practices.
Improve the usability of an existing product .
31. Explore the Questions
All evaluations need goals & questions to guide them
so time is not wasted on ill-defined studies.
For example, the goal of finding out why many
customers prefer to purchase paper airline tickets
rather than e-tickets can be broken down into sub-
questions:
What are customers’ attitudes to these new tickets?
Are they concerned about security?
Is the interface for obtaining them poor?
32. Choose Evaluation Paradigm and
Techniques
Evaluation Paradigms determine which type of
techniques will be used.
Trade-Offs
Combinations of Techniques
33. Identifying Practical Issues
For example, how to:
Select users
Stay on budget
Staying on schedule
Select evaluators
Select equipment
34. Decide on Ethical Issues
Consideration for peoples rights.
Develop an informed consent form.
Participants have a right to:
know the goals of the study
know what will happen to the findings
know privacy of personal information
not to be quoted without their agreement
leave when they wish
“do unto others only what you would not mind being
done to you”
35. Evaluate, Interpret, and Present Data
How data is analyzed & presented depends on the
paradigm and techniques used.
The following also need to be considered:
Reliability: can the study be replicated?
Validity: is it measuring what you thought?
Biases: is the process creating biases?
Scope: can the findings be generalized?
Ecological validity: is the environment of the
study influencing it
36. Pilot Studies
Pilot Study is a small trial run of the main
study.
Pilot studies are always useful for testing
plans for an evaluation, before launching the
main study
Often evaluators run several pilot studies.
37. Summary
An evaluation paradigm is an approach that is influenced
by particular theories and philosophies.
Five categories of techniques were identified: observing
users, asking users, asking experts, user testing, modeling
users.
The DECIDE framework has six parts:
- Determine the overall goals
- Explore the questions that satisfy the goals
- Choose the paradigm and techniques
- Identify the practical issues
- Decide on the ethical issues
- Evaluate ways to analyze & present data
Do a pilot study