Class notes
College aantekeningen Human Computer Interaction (822201-B-6)
- Course
- Institution
CIW Human Computer Interaction - aantekeningen van de colleges
[Show more]
Seller
Follow
nhackl
Reviews received
Content preview
HCI – Human Computer InteractionMini lecture: What is interaction design?
Product design is not interaction design.
“Interaction design is the design of interactive products and services in which a
designer’s focus goes beyond the item in development to include the way users will
interaction with it.”
Designing the interaction between user and product – Designing the interaction and
communication between people
Designing good interactions
This will ensure that a product/service:
- Enhances/augments the way people work, communicate & interact (usefulness)
- Supports people in achieving goals and their activities (effectiveness)
- Is easy to use (usability)
- Is enjoyable to use (user experience)
Mini lecture: what is new media?
What is a medium?
In the communications: outlets and
tools used to store and deliver
information or data
Weaver model of communication
Dead media = media that are
obsolete or have been forgotten.
Old media = forms of analogue,
rather than digital, media that are
still in use.
There is little to no feedback, when
it comes to the types of media.
Remediation = the integration of
features of an old medium into a new medium (layouts that are comparable to
newspapers)
New media = forms of media that are native to computers, are computational, and rely
on computers for re-distribution – digital.
Key aspect: high level of interaction
Emerging media = communication formats or channels in the process of becoming known
as part of a long evolution of our communication architecture.
Mini lecture: usability goals
Usability goals:
- Effective to use (effectiveness)
o How good is a product what it is supposed to do?
o Task completion rate = number of tasks completed successfully / total
number of tasks undertaken
o Number of errors
- Efficient (efficiency)
o Time on task
- Safe to use (safety)
o Avoid unwanted actions (prevent errors, provide recovery options after
errors)
o Inventory of possible errors
, - Have a good utility
o Does the product provide an appropriate set of functions that will enable
users to carry out all of their tasks in the way they want to do them?
- Easy to learn
- Easy to remember how to use
Mini lecture: interaction types
Five main interaction types:
- Instructing
o Giving commands and selecting options
- Conversing
o Interacting with a system as if having a conversation
- Manipulating
o Manipulating objects in a virtual or physical space
- Exploring
o Moving through a virtual or physical space
- Responding
o Computer-initiated interactions to which users can respond
First wave of HCI
- Period: Until the 1980s
- Context: Mainframe computers operated by multiple users
- HCI goal: Optimizing fit between human and computer to allow computer
operation
- Research: Computer science
Second wave of HCI
- Period:1980s -1990s
- Context: PCs used in real-life, collaborative work spaces
- HCI goal: Support work-related tasks, e.g. optimizing accuracy and efficiency of
task performance
- Research: Human cognition
Third wave of HCI
- Period: 2000s
- Context: Mobile devices used beyond work context: private & public everyday life
- HCI goal: Support actions/tasks in everyday life, enjoyment & self-expression
- Research: Cultural studies & ethnography
Fourth wave of HCI
- Period: Now!
- Context: Hypermobility, ubiquitous computing, AI
- HCI goal: Design for the greater good; social responsibility
- Research: Values
Revolution: Natural User Interfaces (NUI)
- Interact with computers in the same way we interact with the physical world.
- Advantage: use everyday skills people know anyway
o Talking
o Writing
o Gesturing
o Walking
o Picking up objects
- No need for learning, more intuitive
Choose appropriate interaction types
, Mini lecture: design principles
- Visibility
o Make relevant parts of the design visible
o Too much or too less information can cause problems
- Feedback
o Sending information back to the user about what has been done
o Includes sound, highlighting, animation and combinations of these.
- Constraints
o Restricting the possible actions that can be performed
o Helps prevent user from selecting incorrect options
o Physical and digital objects can be designed to constrain things
- Consistency
o Design interfaces to have similar operations and use similar elements for
similar tasks
o Internal consistency:
This refers to designing operations to behave the same within an
application
o External consistency:
This refers to designing operations, interfaces, to be the same
across applications and devices.
- Affordance
o Refers to an attribute of an object
that allows people to know how to
use it
o Origin of the concept: Ecological
Psychology
o Physical vs. digital
o Not only visual, but also auditory
Mini Lecture: ‘Emotions – what and why?’
Emotions can change behavior
Example:
- Colasante, Marini & Russo, 2017
- Lab experiment
- Induced sadness or happiness (music and pictures)
- Compared risky choices participate in a lottery, with different chances.
- Greater risk aversion when happy or sad than in neutral state of mind.
- Explanation: controlling em otions requires cognitive resources, so fewer
resources are left for risk estimation.
So, what about emotion and technology?
Interaction with technology can bring about strong emotions. Those emotions influence
our behavior.
Design goals:
- Prevent negative emotions related to interaction with a product
- Facilitate positive attitudes toward a product
o Purchases
o Sharing
o Recommending
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller nhackl. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.97. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now