Predigle Design Session

A mobile app has a 40% drop-off rate on the final checkout screen. What is the best method to diagnose the issue?

• Heatmaps & session recordings

• A/B testing a new CTA color

• Sending a survey

• Redesigning the entire flow

Answer explanation

Heatmaps and session recordings visually reveal user struggles—where they hesitate, rage-click, or abandon the page.

Patients in an ER (Emergency Room) often arrive in critical condition and can’t manually fill out forms or provide ID. Which UX approach is MOST practical?

• Use voice & facial recognition for identity verification

• Enable quick auto-fill using past patient records

• Allow relatives to check in patients remotely

• Use RFID wristbands to track patient arrival & status.

Answer explanation

In emergencies, patients may be unconscious, unresponsive, or unable to provide personal details.

RFID wristbands enable instant scanning for identification, ensuring faster treatment decisions.

If you had to design an ATM UI for people who can’t read, what would be the best solution?

Users abandon hotel booking websites before confirming.

• Displaying a countdown timer for limited-time discounts.

• Asking users for payment details upfront.

• Removing navigation so users don’t get distracted.

• Showing a transparent total cost breakdown before checkout.

Answer explanation

Unexpected costs (e.g., taxes, service fees) are one of the biggest reasons users abandon bookings. Displaying the full cost upfront builds trust. Hidden charges revealed late in the process often trigger frustration or hesitation, causing users to drop off.

According to Apple and Google guidelines, the ideal touch target size for mobile buttons is _______ px.

• 40

• 48

• 44

• 36

Answer explanation

According to both Apple and Google guidelines, the ideal touch target size for mobile buttons is at least 48x48 pixels (or 48dp). 

You notice that users frequently drop off on a multi-step signup form. What design changes would you suggest?

Answer explanation

* Progress Indicator

* Show real-time validation errors (e.g., “Invalid email”) instead of waiting until submission.

*Add testimonials, security badges, or benefits near CTA buttons to build trust.

*Group related fields together to reduce perceived effort.

Problem: A "smart refrigerator" needs an intuitive way to show “what’s inside” without using a screen or an app.

Your company wants to improve onboarding completion rates for a SaaS product. The team suggests setting an OKR to increase user retention by 20%. How would you break this OKR into specific UX KPIs that measure onboarding effectiveness?

• User engagement metrics (e.g., total time spent in the app)

• Completion rate of onboarding steps and drop-off points

• Customer Support ticket volume related to onboarding issues

• Total Score after 30 days of usage

Answer explanation

Completion Rate tells you how many users successfully finish the onboarding flow.

Drop-off Points reveal where users get stuck or frustrated.

A banking app needs to work in areas with poor internet. What’s the best UX solution?

• Allow transactions to queue & process when online

• Show an error message when offline

• Block access without internet

• Require users to switch to desktop

Answer explanation

Users in low-network areas may attempt transactions repeatedly if they fail. By queuing transactions, the app reassures users that their actions are saved and will be processed once connectivity is restored.

You're designing a banking app for users in high-fraud regions. Many users don’t trust digital payments and fear getting scammed. What is the MOST effective UX approach?

• Mandate multi-step authentication for every transaction

• Use transparent security indicators & real-time fraud alerts

• Require users to set complex passwords & security questions

• Use AI-based behavior tracking to detect fraud silently

Answer explanation

Users fear scams because they often feel uninformed or powerless. Transparent security indicators (e.g., lock icons, "Secured by XYZ" badges) provide visible reassurance that their transactions are secure.