UX Research, 2023, Northeastern University

Importance of Accessibility
& Usability for customer satisfaction

Brief

For the UX research project in the course CSYE7280 32164: User Experience Design/Testing at Northeastern University, I focused on the critical role of accessibility and heuristic evaluation in creating inclusive, user-friendly digital experiences.

The project identified several issues, such as insufficient color contrast and a lack of screen reader compatibility, which were mapped to the WCAG 2.1 guidelines. The evaluation revealed that 70% of tasks required additional cognitive effort due to unclear labeling, and 60% of users faced difficulties with the checkout process.

The identified accessibility issues were addressed through a comprehensive redesign, leading to improved usability and full compliance with WCAG 2.1 standards.

Use Case

Zara’s e-commerce website was selected as the use case due to its global reach and the critical importance of accessibility in its user experience. The website was evaluated against the Web Content Accessibility Guidelines (WCAG) 2.1 standards, with a focus on the core principles of perceivability, operability, understandability, and robustness. The objectives include:

Conduct a heuristic evaluation of Zara’s website to identify accessibility barriers

Connect with users and understand experience painpoints

Challenges

“In 2021, Zara faced a 44% sales slump in their business, making it a major cause of concern…”

When coronavirus affected the offline shopping experience worldwide, people couldn’t resist the urge to shop online, and that’s when the reality hit hard. With approximately 1200 offline outlets being shut down, Zara faced a 44% sales slump in their business, making it a major cause of concern.

Refer to the January 2023 web portal screenshots

Busy Images combined with low-contrast navigation patterns increase the exploration journey for first-time users. Especially when you want the customer to explore your product offerings, they shouldn’t be searching for certain areas — the search bar, navigation links, and categories.

Complex Navigation
The website’s layout can be unintuitive, making it difficult for users to find specific categories or products efficiently.

According to Sciencedirect.com, “…navigational links should be visible within 5 seconds…

Over-Reliance on Images
Zara heavily emphasizes visual elements, sometimes at the expense of clear text descriptions, making it harder for users to scan and browse quickly.

Research


Research Hypothesis
Implementing usability and accessibility improvements based on WCAG 2.1 standards will result in higher user satisfaction and task completion rates for Zara’s e-commerce website.

Research Methods

(A) Heuristic Evaluation

Team

Karthik Sharma
Diksha Rawat
Shikha Singh
Harshveen Kalsi

Tasks

1. Browsing products by category.
2. Searching for a specific item.
3. Adding items to the cart.
4. Completing the checkout process.

The website was rigorously tested against the Web Content Accessibility Guidelines (WCAG) 2.1 standards, focusing on key principles of perceivability, operability, understandability, and robustness.

(B) User Interviews

Objective
To understand user behaviors and pain points when using Zara’s website.

Participants
5 participants (2 female, 3 male) aged 22–25, representing Zara’s target demographic.

Sample Questions

  • How often do you order from ZARA?

  • Can you describe your experience with ordering?

  • Did you spend more time than expected ordering online?

  • Are there any significant roadblocks in your way?

  • What are your views on the mobile app?

Sample Tasks

  • Add a product from the “x” category to your cart and finalize the payment.

  • Navigate to the “y” part of the platform

  • Raise a platform concern

  • Can you browse the “z” category products

Ethical Considerations

  • Informed Consent
    All participants provided informed consent before participating in interviews and surveys.

  • Anonymity
    Participant data was anonymized to protect privacy.

  • Data Security: Survey and interview data were stored securely and used only for research purposes.

Sample Empathy Mapping
Here’s a sample empathy map that I created to capture what the user said, felt, did, and thought during the interviews. This map helped us pinpoint the sources of user frustration.

(C) Feedback Analysis

We dived deep into customer reviews to identify user emotion patterns towards the online presence to find that Zara had a 2.08 star rating from 1,132 reviews, indicating that most customers are generally dissatisfied with their online platform experience.

”…Zara ranked 43th among Best Global Brands in the year 2023. It was ranked 25th in 2018 and has kept dropping ever since…”

Code Inspection

On inspecting the web portal code to identify the design intricacies, we found that certain spacings, layouts, typography sizes, and most importantly,y the choice of background image used was interfering with some industry standard accessibility guidelines.

Research Findings

  • The evaluation revealed significant usability issues, particularly in navigation and checkout processes.

  • Users struggled with ambiguous labels, inconsistent design, and a lack of feedback, leading to frustration and task abandonment.

  • These findings align with previous research on e-commerce usability, emphasizing the importance of clear navigation and error prevention., Layouts, typography sizes, and most importantly, the choice of background image used, were interfering with some industry standard accessibility guidelines.

Solution

Improved Navigation
Updated layout features ample white space and evenly distributed information essential for guiding users through their intended actions.

Onboarding starts with Information Clarity.


As part of our UX revamp, the website now features an improved onboarding process. After each development release, new features that benefit the user will be presented to returning customers through modals. We chose modals because they direct the user’s attention to key information, allowing them to focus on the content while keeping the background out of focus..

Feature Improvement: Sticky Pane for Major User Actions

To enhance usability and streamline the user experience, we propose the implementation of a sticky pane on the right side of the website. This pane will occupy 20% of the screen real estate and provide quick access to the most commonly performed tasks, ensuring that key functionalities are always within reach. The sticky pane will remain visible as users scroll, offering consistent and intuitive navigation.

Improved Accessibility
Key actions are always visible, reducing the cognitive load on users.

Enhanced Efficiency
Users can perform common tasks without navigating through multiple pages.

Consistent Navigation
The sticky pane ensures that essential functionalities are always accessible, regardless of where the user is on the website.

User-Centric Design
By prioritizing the most frequently used tasks, the design aligns with user needs and behaviors.

The same usability task results showed a user confidence boost of 60% on average.

We carried out moderated usability testing, focusing on task-based evaluation and comparison to the original version, to validate the prototype's usability and functionality.

Participants were tasked with comparing the navigation and overall layout of Zara's website to our prototype. Subsequently, they were assigned specific tasks, such as locating an item and placing an order, allowing us to assess the user experience comprehensively.

Learnings

Enhancing an interface doesn't always necessitate an extensive budget or a complete overhaul. Sometimes, minor adjustments can wield a substantial impact.

This paper served as a reminder that even prominent brands with successful products and services can undergo significant improvement without incurring exorbitant costs.

Conclusion

This study employed a mixed-methods approach to evaluate the usability of Zara’s website, combining heuristic evaluation, user interviews, and surveys. The findings revealed significant usability issues, particularly in navigation, checkout, and product discovery. By addressing these issues, Zara can enhance the user experience, increase customer satisfaction, and improve conversion rates. Future research could include usability testing with prototypes to validate the proposed recommendations.

References

Nielsen, J. (1994). Usability Engineering. Morgan Kaufmann.

Norman, D. A. (2013). The Design of Everyday Things. Basic Books.

Rubin, J., & Chisnell, D. (2008). Handbook of Usability Testing. Wiley.

Additional sources on UX research methodologies and e-commerce usability.

Propose design solutions to address these barriers and painpoints.

Risk Criteria

1. Severity (Critical, Major, Minor)
2. Frequency (# occurrence)

Onboarding Prototype

Post user interviews and usability testing, we had a good understanding of the problem statement and the solutions required for the same. So we started working on the prototype. The tool used for designing the prototype was Moqups.