Usability Evaluation
Week 10 : A Deep Dive into Usability Evaluation
Introduction to Usability ( What is Usability? )
Usability is all about how users interact with technology, and usability engineering studies the human-computer interface (HCI) in depth.
Introduction to Usability ( What is Usability? )
Usability is all about how users interact with technology, and usability engineering studies the human-computer interface (HCI) in depth.
Usability is a professional discipline that focuses on improving the usability of interactive systems.
Introduction to Usability ( What is Usability? )
Usability is all about how users interact with technology, and usability engineering studies the human-computer interface (HCI) in depth.
Usability is a professional discipline that focuses on improving the usability of interactive systems.
It draws on theories from computer science and psychology to define problems that occur during the use of such a system
Introduction to Usability ( importance )
Usability is crucial for the successful implementation of Information Systems because it directly impacts user satisfaction, efficiency, and productivity
Introduction to Usability ( importance )
1. Enhanced User Satisfaction: Improves the overall experience, increasing acceptance and usage.
Introduction to Usability ( importance )
2. Increased Efficiency: Allows users to accomplish tasks more quickly and with less effort.
Introduction to Usability ( importance )
3. Reduced Training and Support Costs: Intuitive systems require less training and fewer support resources
Introduction to Usability ( importance )
4. Improved Productivity: Users work more effectively, contributing to organizational goals
Introduction to Usability ( importance )
5. Lower Error Rate: Well-designed interfaces minimize mistakes and the severity of errors.
Introduction to Usability ( importance )
6. Greater Accessibility: Makes systems usable for a broader range of people, including those with disabilities.
Introduction to Usability ( importance )
7. Competitive Advantage: Differentiates products in the market, leading to increased customer loyalty and sales.
Introduction to Usability ( Impact on user experience )
Introduction to Usability ( Impact on user experience )
Enhanced User Satisfaction: Makes systems more enjoyable and satisfying to use.
Introduction to Usability ( Impact on user experience )
Improved Efficiency: Users can perform tasks more quickly and with fewer errors.
Introduction to Usability ( Impact on user experience )
Increased Accessibility: Systems become usable for a wider audience, including those with disabilities.
Introduction to Usability ( Impact on user experience )
Reduced Learning Curve: Easier for new users to learn and master the system.
Introduction to Usability ( Impact on user experience )
Better Engagement: A user-friendly system encourages longer and more frequent use.
Components of Usability
The components of usability for the implementation of Information Systems are primarily focused on making systems logical, effective, and easy to utilize
Components of Usability
Ease of Use: The system should be easy to understand and navigate.
Figure: Usability - Author: Seobility - License: CC BY-SA 4.0
Components of Usability
Efficiency: Users should be able to perform tasks quickly.
Components of Usability
Memorability: Ease of relearning for infrequent users.
After visiting the site, if a user can remember enough to use it effectively in future visits
Components of Usability
Errors: Minimizing error rates and severity, with clear recovery options.
Components of Usability
Satisfaction: The system should be pleasant to use.
Usability Evaluation Methods
Usability Evaluation Methods
Usability evaluation methods for information systems include techniques like user testing, where real users interact with the system to identify usability issues
Usability Evaluation Methods
1. Baseline Testing: Assessing the current system to establish usability benchmarks
Usability Evaluation Methods
1. Baseline Testing: Assessing the current system to establish usability benchmarks
evaluating a person's current performance or function, or comparing the performance of a system before and after changes
Usability Evaluation Methods
2. Focus Groups and Surveys: Asking users about their preferences for a new app feature.
Through a focus group, you can learn about users’ attitudes, beliefs, desires, and reactions to concepts.
Usability Evaluation Methods
3. Card Sort Testing: Users organize topics into categories for a website's layout.
Card sorting is a method used to help design or evaluate the information architecture of a site
business goals, funding, politics, culture, technology, resources, constraints
content objectives, document and data types, volume, existing structure, governance and ownership
audience, tasks, needs, information-seeking behavior, experience
Usability Evaluation Methods
3. Card Sort Testing: Users organize topics into categories for a website's layout.
Card sorting is a method used to help design or evaluate the information architecture of a site
business goals, funding, politics, culture, technology, resources, constraints
content objectives, document and data types, volume, existing structure, governance and ownership
audience, tasks, needs, information-seeking behavior, experience
a UX research method used to discover how people understand and categorize information
Usability Evaluation Methods
4. Wireframe Testing: To test flow, users navigate a basic version of a new website/system.
A wireframe is a two-dimensional illustration of a page’s interface that specifically focuses on space allocation and prioritization of content, functionalities available, and intended behaviors
Usability Evaluation Methods
5. First Click Testing: Observing the first action users take on a redesigned homepage.
First Click Testing examines what a test participant would click on first on the interface in order to complete their intended task.
Usability Evaluation Methods
6. Comprehensive Usability Testing: Users complete tasks on a site while being observed.
Usability Evaluation Methods
7. Satisfaction Surveys: Post-interaction survey to rate a user's experience with a system.
Implementing Usability in System Design
Implementing Usability in System Design
1. Collecting Feedback: Gathering input from users on their experience.
correlates with Focus Groups and Surveys, Satisfaction Surveys - gathering user preferences and satisfaction levels.
Implementing Usability in System Design
2. Analyzing Feedback: Identifying common issues and areas for improvement.
aligns with Baseline Testing, Comprehensive Usability Testing - identifying usability issues and areas for improvement from user interactions.
Implementing Usability in System Design
3. Prioritizing Changes: Determining which changes will have the most impact.
can be informed by outcomes of First Click Testing, Wireframe Testing - deciding which navigational or layout changes are most crucial based on user behavior.
Implementing Usability in System Design
4. Implementing Changes: Updating the system based on user feedback.
reflects actions taken after Card Sort Testing - updating the system's information architecture or design based on user-suggested categorizations
business goals, funding, politics, culture, technology, resources, constraints
content objectives, document and data types, volume, existing structure, governance and ownership
audience, tasks, needs, information-seeking behavior, experience
Implementing Usability in System Design
5. Follow-Up Evaluation: Assessing the effectiveness of the changes made.
matches with Comprehensive Usability Testing - reassessing the system post-changes to measure impact.
Implementing Usability in System Design
6. Iterative Improvement: Repeating the process to continually enhance usability.
is a cycle supported by all methods, particularly Satisfaction Surveys, to continuously refine usability based on ongoing user feedback and evaluations.
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
User-centered design (UCD) process to usability evaluation
Assignment Week 10: Application of User-Centered Design to Information Systems Project