IxDF Certificate of Completion

Perception and Memory in HCI and UX

IxDF Course Certificate awarded to Pedro Junceiro for completing the "Perception and Memory in HCI and UX" course
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The Interaction Design Foundation (IxDF) hereby certifies that the IxDF Course Certificate (ID #d6070c21-658b-428f-868e-5e12269675d2) has been conferred upon Pedro Junceiro with a Best in Class 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 Pedro Junceiro

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

  • Apply the interaction model and five-step goal-mapping walkthrough, including the 90-second time-out rule, to identify exactly where a design fails to give users the evidence they need to act and determine what needs to change.

  • Apply George Miller's Magical Number Seven and the Atkinson-Shiffrin multi-store model to design interfaces that work with human memory rather than against it, to reduce errors and support task completion.

  • Distinguish between sensory, short-term, and long-term memory and use that knowledge to reduce friction in user flows and support users in completing tasks accurately.

  • Account for how cross-sensory dependencies between sight, touch, and proprioception create failure points in single-channel interface designs, and propose design solutions that address them.

  • Design for users affected by illness, disability, age, stress, and fatigue, not as exceptions but as an expected part of the user population, producing interfaces that hold up across the full spectrum of human ability.

  • Evaluate color, contrast, and motion against the known limits of human visual perception, including the one-second peripheral motion threshold, to make specific, substantiated decisions about animation and notification design.

  • Use the ecological sound and earcon framework to design auditory feedback to carry meaningful information through pitch, timbre, and harmonic complexity, and evaluate when visual or auditory channels are appropriate for a given user context.

  • Identify where an interface demands recall from users when recognition would serve them better, and produce annotated learnability evidence to demonstrate where design supports new users and where it fails them.

  • Conduct an accessibility audit against WCAG perceivable guidelines to identify where a design excludes users across vision, hearing, and cognitive ability, and produce a documented checklist of what works and what fails.

  • Recognize how confabulation and memory reconstruction affect the reliability of user research data, and account for those risks when interpreting findings and making design decisions.

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Certificates Earned
by Pedro Junceiro

IxDF Course Certificates are awarded to Pedro Junceiro 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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Creativity: Methods to Design Better Products and Services certificate

Creativity: Methods to Design Better Products and Services

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Emotional Design — How to Make Products People Will Love certificate

Emotional Design — How to Make Products People Will Love

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IxDF Master Class Certificates Earned

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

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How to Elevate Your Portfolio: Sketching Your Design Process certificate

How to Elevate Your Portfolio: Sketching Your Design Process

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Radical Participatory Design: Insights From NASA’s Service Design Lead certificate

Radical Participatory Design: Insights From NASA’s Service Design Lead

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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 Create Successful Design Systems with Storytelling certificate

How to Create Successful Design Systems with Storytelling

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A Guide to Hassle-Free Designer-Developer Collaboration certificate

A Guide to Hassle-Free Designer-Developer Collaboration

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Beyond Interfaces: The UI Design Skills You Need to Know certificate

Beyond Interfaces: The UI Design Skills You Need to Know

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Mental Models: How to Design for the Way Your Users Think certificate

Mental Models: How to Design for the Way Your Users Think

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Design For Agile: Common Mistakes and How to Avoid Them certificate

Design For Agile: Common Mistakes and How to Avoid Them

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How to Use Card Sorting for Better Information Architecture certificate

How to Use Card Sorting for Better Information Architecture

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Behavioral Design: Create Engaging Products with Behavioral Science certificate

Behavioral Design: Create Engaging Products with Behavioral Science

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Innovating in an Enterprise: The Challenges and How to Overcome Them certificate

Innovating in an Enterprise: The Challenges and How to Overcome Them

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How to Attract Users Through Great Onboarding Experiences certificate

How to Attract Users Through Great Onboarding Experiences

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UX Magic: Achieve 10X Better Designs Through Semantic Interaction Design certificate

UX Magic: Achieve 10X Better Designs Through Semantic Interaction Design

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IxDF Membership Certificate

This IxDF Membership Certificate (ID #mc_Wt5dkJBKs) has been issued to Pedro Junceiro 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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