Subscribe by Email


Showing posts with label Usability testing. Show all posts
Showing posts with label Usability testing. Show all posts

Tuesday, July 2, 2019

The Unseen Barrier: Why Usability and Readability Are Crucial for Effective Design

The Unseen Barrier: Why Usability and Readability Are Crucial for Effective Design (And What a Gas Station Sign Taught Me)

Recently, I had a simple yet profoundly illustrative experience while driving. I was passing a familiar gas station next to the highway, one I’d driven by countless times. This time, however, a brand-new, brightly lit board caught my eye, announcing some new eating options available there. Normally, even at highway speeds, I can quickly scan and comprehend such signs. But this particular board was different. The names of the food outlets were rendered in an elaborate, fancy script. In the fleeting moments I had while driving past, my brain struggled to decipher the ornate lettering. It wasn't that the words were complex, but the style of the text made them incredibly difficult to process rapidly. I asked the other people in the car if they’d managed to read the names – a unanimous "no" was the answer. We simply didn't have enough time to decode the visual puzzle before we'd sped past. Interestingly, this wasn't an issue with other signboards along the same stretch of road that used plain, simple, and instantly legible scripts.

This seemingly minor incident immediately brought my years of experience in the IT industry flooding back, specifically the countless discussions, debates, and sometimes hard-won battles surrounding usability and user experience (UX). If that gas station signboard had been designed after consulting with a usability expert, the outcome would likely have been very different. The expert would have immediately recognized the primary use case: drivers needing to make a quick decision, often at speed, about whether to stop. They would have championed a design that prioritized instant readability, ensuring potential customers could grasp the information and perhaps be enticed to pull over before they’d missed their chance. Instead, a visually "fancy" choice likely resulted in lost opportunities.

And this, in essence, is what usability is all about. It's about designing with the end-user firmly in mind, ensuring that whatever we create – be it a physical sign, a software interface, a website, or a mobile app – is not just functional, but also intuitive, efficient, and satisfying to use.

The Core of Usability: Designing for the User, Not for Ourselves

When we embark on the design of any new user-facing element, whether it's a completely new software screen, a redesign of an existing interface, or even something as seemingly simple as a public notice, the paramount question should always be: "How will this look and function for the users?" This might sound obvious, but it’s a principle that is surprisingly easy to overlook, especially by those deeply embedded in the creation process.

The team behind a product – the developers, the testers, the product managers – lives and breathes that product day in and day out. They develop an intimate familiarity with its intricacies, its workflows, and its terminology. This deep immersion, while beneficial for development, can inadvertently create blind spots. What seems perfectly logical and intuitive to an internal team member might be confusing or cumbersome to a first-time user or even a regular user approaching a feature from a different context. This is precisely why the role of a usability expert (often a UX Designer, UX Researcher, or Human Factors Specialist) is so incredibly vital.

The Usability Expert: An Indispensable Advocate for the User

A usability expert brings an objective, user-centered perspective to the design process. Their expertise lies in understanding human-computer interaction, cognitive psychology, information architecture, and interaction design principles. They employ various methodologies – user research, persona development, journey mapping, wireframing, prototyping, and, crucially, usability testing – to ensure that the design is:

  1. Effective: Can users successfully achieve their goals? (e.g., Can a driver read the sign and understand the offerings?)

  2. Efficient: How much effort (time, clicks, cognitive load) does it take for users to achieve their goals? (e.g., Can the sign be read in the 2-3 seconds available?)

  3. Engaging: Is the interaction pleasant and appropriate for the user and the context? (While less critical for a highway sign, still relevant for its visual appeal and non-distracting nature).

  4. Error Tolerant: How well does the system prevent errors, and how well does it help users recover from them?

  5. Easy to Learn: How quickly can a new user become proficient?

In the case of my gas station sign, a usability expert would have flagged the fancy script as a major impediment to efficiency and effectiveness given the specific "user" (a driver at speed) and the "task" (quickly identifying food options). They would have advocated for clear, high-contrast, sans-serif fonts known for their legibility at a distance and with brief exposure.

The Challenge of Internal Resistance: "We Know What the Customer Wants"

It's important to emphasize a common hurdle: internal resistance to the recommendations of usability experts. I've witnessed numerous instances where development teams, deeply invested and proud of their work, feel they inherently understand what the customer wants. They might perceive usability-driven changes to workflows or screen designs as unnecessary, an underestimation of the user's intelligence, or even as a criticism of their existing efforts.

There are specific examples I recall where a usability expert, backed by user testing data, recommended significant changes to a complex software screen or a convoluted workflow. The development team, having worked on the product for so long, often struggled to appreciate the user's pain points. Their arguments might include:

  • "Users will get used to it."

  • "It’s powerful; they just need to learn it."

  • "Changing it now will be too much work."

  • "Our current users haven't complained that much."

This resistance isn't usually born out of malice, but rather from a combination of familiarity blindness (the "curse of knowledge"), attachment to one's own creations, and sometimes, a lack of direct, unfiltered exposure to genuine user struggles.

Bridging the Gap: Fostering Empathy Within Development Teams

So, how can organizations ensure that the invaluable insights of usability experts are not just heard but embraced and acted upon? One of the most effective ways is to cultivate empathy for the user directly within the development and product teams. Simply presenting usability reports isn't always enough; teams need to feel the user's experience.

Here are some powerful strategies:

  1. Direct Exposure to User Feedback:

    • User Forums and Community Channels: Encourage team members (not just support staff) to regularly monitor user forums, social media discussions, and online communities related to the product. Reading firsthand accounts of frustrations, confusion, and desired features can be incredibly eye-opening.

    • Customer Support Tickets and Defect Logs: Analyzing patterns in support tickets and customer-logged defects can highlight recurring usability issues that might not be obvious from an internal perspective. This is raw data directly from the trenches.

  2. Active Participation in User Research and Testing:

    • Observing Usability Tests: Having developers, testers, and product managers observe live (or recorded) usability testing sessions is perhaps the most impactful way to build empathy. Watching a real user struggle with an interface they helped build, click in the wrong places, or express confusion can be a humbling and highly motivating experience. It shifts the perspective from "the user should know this" to "how can we make this clearer?"

    • Beta Programs: Encourage active participation in beta programs, not just for bug hunting, but for interacting directly with beta users. Soliciting feedback on new designs and workflows during the beta phase allows for course correction before a wider release.

    • "Dogfooding" (Using Your Own Product): While valuable, dogfooding alone isn't enough, as internal users are still subject to familiarity bias. However, it can help identify glaring issues.

  3. Involving Users Early and Often:

    • Don't wait until the end to test usability. Incorporate user feedback loops throughout the design and development process, from early concepts and wireframes to interactive prototypes. This iterative approach makes changes less daunting and more collaborative.

  4. Creating User Personas and Journey Maps:

    • These tools, often developed by UX professionals, help the entire team visualize and empathize with different types_of users and their experiences interacting with the product to achieve their goals. They make the abstract "user" more concrete and relatable.

When team members witness firsthand the challenges users face, their perspective on what is "important for the product" often undergoes a rapid and significant transformation. The focus shifts from internal logic or technical elegance (though still important) towards genuine user-centricity. The fancy script on the gas station sign, which might have looked aesthetically pleasing to its creators in isolation, would quickly be seen as a functional failure when viewed through the lens of a driver’s fleeting glance.

Readability: A Cornerstone of Usability

The gas station example specifically highlights the critical role of readability within the broader concept of usability. Readability refers to the ease with which a reader can understand a written text. In visual design, this extends to:

  • Typography: Choice of font (serif vs. sans-serif, script vs. block), font size, weight, line spacing (leading), and line length. For quick scanning (like a highway sign or a button label), sans-serif fonts are generally preferred for their clarity.

  • Contrast: The difference in brightness or color between the text and its background. High contrast (e.g., black text on a white background, or vice-versa) is crucial for legibility, especially for users with visual impairments or in varying lighting conditions.

  • Layout and Whitespace: How text is arranged on the page or screen. Adequate whitespace (negative space) around text blocks reduces clutter and improves focus.

  • Language and Wording: Using clear, concise, and simple language, avoiding jargon or overly complex sentence structures.

Poor readability creates a cognitive burden, forcing users to expend more mental effort to simply understand the information presented, let alone act upon it. This can lead to frustration, errors, and abandonment of a task or product.

Conclusion: Prioritizing Clarity for User Success

The simple act of choosing a fancy, hard-to-read script for a highway sign serves as a potent metaphor for a common pitfall in design: prioritizing aesthetics or internal preferences over fundamental usability and the user's actual context. Whether designing a physical object, a software interface, or a piece of written communication, the principles remain the same. If the intended audience cannot easily perceive, understand, and interact with the design to achieve their goals, then the design, no matter how clever or visually appealing to its creators, has ultimately failed.

Investing in usability expertise, fostering a culture of user empathy within development teams, and paying close attention to foundational elements like readability are not just "nice-to-haves"; they are essential ingredients for creating products and experiences that are effective, efficient, and genuinely valued by the people they are meant to serve. After all, the goal isn't just to display information or offer functionality, but to ensure it can be effortlessly accessed and utilized, turning a fleeting glance into a satisfied customer, or a complex task into a smooth interaction.

Further References & Learning:

Books on Usability, UX Design, and Readability:

  1. "Don't Make Me Think, Revisited: A Common Sense Approach to Web Usability" by Steve Krug (Buy book - Affiliate link) A foundational, highly readable classic on web usability principles.

  2. "The Design of Everyday Things" by Don Norman (Buy book - affiliate link) Explores the psychology of how people interact with objects and systems, crucial for understanding usability.

  3. "About Face: The Essentials of Interaction Design" by Alan Cooper, Robert Reimann, David Cronin, Christopher Noessel (Buy book - affiliate link) A comprehensive guide to interaction design principles and practices.

  4. "Measuring the User Experience: Collecting, Analyzing, and Presenting Usability Metrics" by Tom Tullis and Bill Albert (Buy book - Affiliate link) For those interested in quantifying usability.

  5. "Letting Go of the Words: Writing Web Content that Works" by Janice (Ginny) Redish (Buy book - affiliate link) Focuses on writing clear, user-centered content.

  6. "Typography for Lawyers" by Matthew Butterick (Buy book - affiliate link) (surprisingly relevant for anyone wanting to understand document readability and professional typography).











Monday, July 23, 2012

What is the difference between the graphical user interface testing and usability testing?


There are different types of testing and graphical user interface testing and usability testing are two of them. In this article we have taken up the discussion regarding two types of testings mentioned in the heading plus the differences between them.
Though the graphical user interface testing and usability testing sound quite similar to one another but they are quite different from each other. First we shall discuss about these two types individually and later we shall see the differences between them. 

Graphical User Interface Testing


- Graphical user interface or GUI testing is all about checking the graphical user interface of a developed software system or application as a measure for ensuring that it holds up to its specifications as mentioned in its documentation. 
- The GUI testing is carried out with the help of several varying test cases. 
- The generation of good and effective test cases depends a lot on the certainty of the test designers regarding whether or not the test suite designed by them will cover the over all functionality of the software system or application under question.
- It also depends on the extent up to which the designed test suite exercises the graphical user interface of the software system or application. 

Usability Testing


- Usability testing is more like an interaction design centered on the users for the evaluation of the software system or application.
- The usability testing has been known for giving the direct input regarding the usage of a particular software system or application by the real world users.
The usability testing actually falls in contrast with the other available usability inspection methods since in these methods the methods used for the evaluation of a graphical user interface are quite different.
- The primary focus of the usability testing is on the capacity of the human designed software system or application to fulfill its intended purpose. 
- The outcome of the usability testing is actually a measure of the ease with which the software system or application can be used. 
- Usability testing falls under the category of the black box testing. 
- The basic goal of the usability testing is to measure the following four aspects mentioned below:
  1. Efficiency
  2. Accuracy
  3. Recall and
  4. Emotional response
- Usability testing is carried with the aim of observing the users using the software system or application in order to catch the errors and spot the areas where improvement can be made. 

Differences between Graphical User Interface Testing & Usability Testing


Difference #1:
The purpose of the graphical user interface testing is to see the look and feel of a particular software system or application differs in different operating system. On the other hand the purpose of the usability testing is to make it convenient for the users to use the software system or application.

Difference #2:
Graphical user interface testing involves making confirmations regarding whether or not the software system or application adheres to its design requirements checking on the aspects like:
         a)   Colors
         b)   Fonts
         c)   Control placements and so on.
On the other hand the usability testing goes much deeper in to the above mentioned aspects like whether or not the controls have been arranged in a logical sequence.

Difference #3:
In Graphical user interface testing the tests are executed to check the following:
        a)  whether or not the standards are in place,
        b)   All the screen validations namely navigation conditions, validation 
conditions, aesthetic conditions and so on.
Usability testing involves asking questions like:
       a)   Is navigation intuitive enough?
       b)   Does the GUI make sense to the user? Etc.


Thursday, December 8, 2011

What are different characteristics of usability testing?

Usability testing can be defined as a technique which is used in the interaction design centered around the user for evaluation of a software system, application or product by testing it out on the software product users. This can be thought of as an irreplaceable practice of usability. It is considered as irreplaceable usability practice because it generally gives direct report on how the real users use the software system or application or the product.

From the mentioned things, we can say that the usability testing is highly in contrast with inspection methods for usability.

- In usability inspection methods the experts seem to use several different methods to evaluate and check a GUI or graphical user interface without the involvement of the real users.
- The main focus of the Usability testing is on measuring a software system’s or product’s capacity of achieving its aim and objectives made by humans.

Best examples of the software systems or products that are commonly benefited from usability testing are the web sites and the web applications, the computer user interfaces, documents, databases and devices.

- The Usability testing usually measures the usability i.e., to say the ease of use of some specific object or group of many objects.
- However, the general human- computer interaction is different from this in the way that the human – computer interaction makes the attempts to formulate the principles of the universe.
- Usability testing is basically a black box testing methodology.
- It aims at observing people using the software system, product or application in their own way and discovering new errors and bugs.
- They can also find some ways for the improvement of the software system or the application.

Usability tests determine how well the output comes from the following 4 fields when tested with usability testing test cases:

1. Efficiency or the performance
It includes how much time the software system is taking to respond? In how many the software system is completing the assigned task?

2. Accuracy:
It includes determining the number of mistakes the users make? And were they recoverable or they caused the software system failure?

3. Recall:
It includes determining what the user remembers afterwards i.e., after the time of usage or after the periods of non- usage.

4. Emotional response:
It involves determining the level of satisfaction of the users about the completed tasks? Does the confidence level of person has increased or decreased? Is the user stressed? Is the user confident enough to recommend this software application to others?

Some people have a misconception of usability testing.
- They think that simply collecting opinions on some software system or documentation is called usability testing.
But this is absolutely wrong.

- Gathering of opinions on some object is simply called qualitative research or market research.
- It’s important to clear up the concept of the usability testing.
- It can be though of as a testing involving systematic observation under certain conditions which are controlled by experts.
- This is done basically to have an understanding about how people use that particular software system or application.
- But usually usability testing is used in combination with qualitative research. - This helps in better understanding of user’s expectations.
- It involves watching people use that software system or the product for its intended objective.
- For carrying out a successful usability test, one needs to create a realistic environment where the user or the tester is required to perform the tasks which can be performed by the software system and the observers watch the testing and record the results and the observations.
- Other forms of feedback are also gathered like pre and post test questionnaires, scripted instructions, customer feed back and paper prototypes etc.


Thursday, June 2, 2011

Some best practices that contribute to improved software testing Part II

There is always a search for best practices going on. Some are well known and some hidden. Testing does not stand alone. It is intimately dependant on the development practices. These practices have come from many sources. These practices can be divided in three parts:
- Basic Practices
- Foundation Practices
- Incremental Practices

The foundational practices include:
- User Scenarios
User scenarios are developed to test the functionality of applications when multiple software products are integrated. User scenarios test the product in a way that it reflects customer usage. It also reduces complexity of writing test cases. This practice should capture methods of recording user scenarios and developing test cases based on them.

- Usability Testing
Usability testing not only tests how usable a product is but also provide feedback on methods to improve user experience. A good user experience is very necessary. The best practice for usability testing is that it should have knowledge in area of human computer interface.

- In-process ODC feedback loops
Orthogonal defect classification or ODC uses deect stream for precise measurability into product and process. The advantage of ODC is that it has the ability to close feedback loops which has proved to be cost effective and process improvement.

- Multi release ODC/Butterfly profiles
This technology or practice allows to make strategic decisions to optimize development costs, time and quality issues by recognizing customer trends, patterns and performance of the product.

- Test Planning Requirements
Requirements management and preparing test plans out of it is an important step to check whether they are meeting the customer needs or not. This practice is understood and executed with a holistic view.

- Automated test generation
There are many automated tools to generate test cases which help in software testing.this practice needs to understand which of the methods are successful and in what environments they are viable. A good amount of learning is needed to learn these tools.


Monday, October 18, 2010

Validation phase - System Testing - Usability Testing

Usability is the degree to which a user can easily learn and use a product to achieve a goal. It is the system testing that attempts to find any human factor problems. It is testing the software from a user's point of view. Essentially, it means testing software to prove or ensure that it is user friendly. It includes ergonomic considerations, screen design, standardization etc.

The idea behind usability testing is to have actual users perform the tasks for which the product was designed. If they can not do the tasks or if they have difficulty performing the tasks, the user interface is not adequate and needs redesigning. Usability testing is just one of the many techniques that serve as a basis for evaluating the user interface in a user-centered approach. Other techniques for evaluating a UI include inspection methods such as heuristic evaluations, expert reviews, card sorting, matching test or icon intuitiveness evaluation, cognitive walk-through. Confusion regarding usage of the term can be avoided if we use usability evaluation for the generic term and reserve usability testing for the specific evaluation method based on user performance.

It often involves building prototypes of parts of the user interface, having representative users perform representative tasks and seeing if the appropriate users can perform the tasks. In other techniques such as inspection methods, it is not performance, but someone's opinion of how users might perform that is offered as evidence that the UI is acceptable or not. This distinction between performance and opinion about performance is crucial. Opinions are subjective. Whether a sample of users can accomplish what they want or nit is objective. Under many circumstances it is more useful to find out if users can do what they want to do rather than asking someone.

The end goals of usability testing is to get:
- a better quality software.
- a software that is easier to use.
- a software that is more readily accepted by users.
- a method that shortens the learning curve for new users.


Facebook activity