IxDF Certificate of Completion

Mobile UI Design

IxDF Course Certificate awarded to Joann Schermerhorn for completing the "Mobile UI Design" course
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The Interaction Design Foundation (IxDF) hereby certifies that the IxDF Course Certificate (ID #bd9669e9-dc7e-4c1e-911e-06db1268e21b) has been conferred upon Joann Schermerhorn with a Top 10% Course Taker Distinction in formal recognition of completing evidence-based curricula taught by industry leaders, to the standards established by the IxDF Educational Codex. View Course Curriculum.

This document serves as the official record of the above credential. Third parties may reference the certificate ID to verify its authenticity. The Interaction Design Foundation maintains permanent records of all credentials issued.

Verified Competencies Demonstrated by Joann Schermerhorn

By completing this curriculum to the standards of the IxDF Educational Codex, Joann Schermerhorn has demonstrated mastery of how to:

  • Apply the principles of affordances and signifiers to mobile interfaces to ensure users intuitively understand which elements are actionable without instruction or trial and error.

  • Design touch targets that meet Apple Human Interface and Google Material Design standards to maximize accuracy and accessibility.

  • Sharpen the tappability of mobile UI elements using signifiers, contrast, and subtle motion to point users toward the intended action.

  • Conduct the One Thumb, One Eyeball test to evaluate interfaces under realistic mobile conditions.

  • Apply established UI patterns including navigation, forms, help systems, search, and notifications.

  • Diagnose and reduce cognitive friction by streamlining interfaces, lowering memory load, and clarifying decision points for users.

  • Construct mobile forms that account for localized inputs, intelligent field categorization, clear labels, and contextual error handling to reduce friction and abandonment.

  • Design mobile search experiences using auto-complete, explicit, dynamic, scoped, faceted, saved and recent, search forms, and search results patterns matched to user intent.

  • Identify and avoid deceptive patterns and design ethical alternatives that respect user intent and consent.

  • Apply the fundamental elements of visual design, including typography, color, and grid systems, to build mobile interfaces that generate trust and emotional resonance.

  • Build typographic scales using mathematical ratios such as the Golden Ratio and Perfect Fifth to establish visual hierarchy and harmony across an interface.

  • Develop accessible color palettes grounded in contrast, perception, and inclusive design considerations.

  • Align design decisions with a coherent visual strategy, drawing on Material Design principles to balance aesthetics with function.

  • Apply UI animation purposefully to communicate state changes, guide attention, and support user tasks.

  • Diagnose and reduce cognitive friction by streamlining interfaces, lowering memory load, and clarifying decision points for users.

  • Audit interfaces using a structured mobile UI checklist to ensure usability and visual integrity before handoff.

  • Design mobile augmented reality experiences and translate affordances into augmented reality contexts, accounting for spatial awareness, user attention, and physical safety.

  • Conduct heuristic evaluations of AR and mobile interfaces using Nielsen and Molich's ten heuristics, extended with Labrie and Cheng's mobile AR adaptations, and document findings with a structured scorecard.

  • IxDF Outstanding
 Learner Award
    IxDF Outstanding Learner Award distinction: Completed 15 IxDF Courses
  • IxDF
 Best-in-Class
    IxDF Best-in-Class distinction: Completed an IxDF Course with a score of 100%
  • IxDF Top 10%
 Course Taker
    IxDF Top 10% Course Taker distinction: Completed an IxDF course with a score of 90%
  • IxDF Assiduous
 Learner Award
    IxDF Assiduous Learner Award distinction: Completed 5 IxDF Courses
  • More distinctions
    +4

Overland Park, United States

Joann Schermerhorn

Founder, SEO and UX Consultant at The Grand Schema

IxDF Distinctions

Distinctions are conferred upon Joann Schermerhorn in formal recognition of their notable achievements and contributions, as stipulated by the IxDF Educational Codex.

IxDF Assiduous
 Learner Award Distinction IxDF Assiduous Learner Award
Completed 5
IxDF Courses
IxDF
 Best-in-Class Distinction IxDF Best-in-Class
Completed an IxDF Course
with a score of 100%
IxDF Certified
 Course Completer Distinction IxDF Certified Course Completer
Completed one or more
IxDF Courses.
IxDF Career 
Program Completer Distinction IxDF Career Program Completer
Completed one or more
IxDF Career Programs.
IxDF Community Influencer Distinction IxDF Community Influencer
Contributed meaningfully
to IxDF Conversations
IxDF Master
 Class Learner Distinction IxDF Master Class Learner
Completed one or more
IxDF Master Classes
IxDF Outstanding
 Learner Award Distinction IxDF Outstanding Learner Award
Completed 15
IxDF Courses
IxDF Top 10%
 Course Taker Distinction IxDF Top 10% Course Taker
Completed an IxDF course
with a score of 90%
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Certificates Earned
by Joann Schermerhorn

IxDF Course Certificates are awarded to Joann Schermerhorn in formal recognition of completing evidence-based curricula taught by industry leaders, to the standards established by the IxDF Educational Codex.

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Accessibility in Practice: Build Digital Experiences Everyone Can Use certificate

Accessibility in Practice: Build Digital Experiences Everyone Can Use

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Present Like a Pro: Communication Skills to Fast-Track Your Career certificate

Present Like a Pro: Communication Skills to Fast-Track Your Career

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Object-Oriented UI Design: Build Interfaces Users Love certificate

Object-Oriented UI Design: Build Interfaces Users Love

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Personas and User Research: Design Products and Services People Need and Want certificate

Personas and User Research: Design Products and Services People Need and Want

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Human-Computer Interaction: The Foundations of UX Design certificate

Human-Computer Interaction: The Foundations of UX Design

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IxDF Master Class Certificates Earned

IxDF Master Class Certificates are awarded to Joann Schermerhorn in formal recognition of their attendance and ongoing commitment to learning from industry leaders.

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Influence Product Strategy with Design: Learn from a Booking.com Case Study certificate

Influence Product Strategy with Design: Learn from a Booking.com Case Study

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Design to Delight Every Generation: From Gen Z to Boomers certificate

Design to Delight Every Generation: From Gen Z to Boomers

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Speak Strategy, Get Influence: How Designers Can Shape Product Decisions certificate

Speak Strategy, Get Influence: How Designers Can Shape Product Decisions

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How to Design Engaging Products: Insights from Fortnite's UX certificate

How to Design Engaging Products: Insights from Fortnite's UX

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Design for AI Agents: Healthcare and High-Stakes Systems certificate

Design for AI Agents: Healthcare and High-Stakes Systems

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User Research for Everyone: Practical Strategies for Every Team certificate

User Research for Everyone: Practical Strategies for Every Team

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How to Design for the Human Mind: Cognitive Science for UX certificate

How to Design for the Human Mind: Cognitive Science for UX

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How to Break into UI Design: Design Skills That Make You Irreplaceable by AI certificate

How to Break into UI Design: Design Skills That Make You Irreplaceable by AI

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How to Break into UX Design and Product Design: A Career Change Guide certificate

How to Break into UX Design and Product Design: A Career Change Guide

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How to Break into UX Design with No Industry Experience certificate

How to Break into UX Design with No Industry Experience

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Gestalt Principles in Action: Design Better UIs and a Stronger Career certificate

Gestalt Principles in Action: Design Better UIs and a Stronger Career

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Sketch with Confidence: The Skill That Gets Your Design Thinking Out of Your Head certificate

Sketch with Confidence: The Skill That Gets Your Design Thinking Out of Your Head

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Innovate with Design Thinking: Your Shortcut to Results certificate

Innovate with Design Thinking: Your Shortcut to Results

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UI Sound for Designers: The Hidden Layer of Human-Centered Design certificate

UI Sound for Designers: The Hidden Layer of Human-Centered Design

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How to Design for Neurodiversity: Inclusive Content and UX certificate

How to Design for Neurodiversity: Inclusive Content and UX

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How to Create Complex Tables Users Love: A UI Designer's Guide certificate

How to Create Complex Tables Users Love: A UI Designer's Guide

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The No-Burnout Blueprint for a Successful Design Career certificate

The No-Burnout Blueprint for a Successful Design Career

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How to Create Successful Design Systems with Storytelling certificate

How to Create Successful Design Systems with Storytelling

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How to Elevate the User Experience of AI with Design Patterns certificate

How to Elevate the User Experience of AI with Design Patterns

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IxDF Membership Certificate

This IxDF Membership Certificate (ID #mc_joann-schermerhorn) has been issued to Joann Schermerhorn in formal recognition of their membership of the Interaction Design Foundation (IxDF).

The authenticity of this membership certificate can be verified on this permanent link.

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