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Ana. Margarita Cardenes
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May 2023 – Present • Research Impact Case Study

AM Digital Designs

A cross-cultural testing platform designed for global audiences and local businesses.

Core Focus: Local Web Optimization, Global UX Participant Recruitment, & Unified AI Agent Infrastructure. An engineered ecosystem.
Overview

Role & Scope

Founder & Lead UX Product Designer

Wearing multiple hats across the product lifecycle:

UX Research • Graphic Design • Marketing Lead • Web Development • Full-Stack Systems Engineering

Built solo with:

PHP • MySQL • Custom PHP i18n system (6 languages) • JavaScript • HTML/CSS • PHPMailer • Hostinger

The Framework

I built AM Digital Designs to prove that cultural research drives conversion across three pillars:

  • Local Impact: Redesigning digital frontends for community businesses.
  • Global Testing: Building an international participant recruitment pipeline.
  • Data Synthesis: Linking research insights via an evolving AI agent.

Under The Hood

Every layer of amdigitaldesigns.com was designed and coded by me. The frontend is hand-written PHP, HTML, and CSS. No CMS, no page builder. The multilingual system is a custom t() translation function reading from six PHP language files (English, Spanish, Hindi, Korean, French, Mandarin). Contact and intake forms are wired to a MySQL database with server-side validation and email delivery via PHPMailer. Hosting and DNS are managed on Hostinger.

Building it myself meant every design decision—from typography to form microcopy to error states—was one I could ship the same day, in every language.

AM Digital Designs Brand Logo and Visual Identity 0.2 Brand Logo & Identity
AM Digital Designs E-Book Agency Resource Cover 0.1 Agency E-Book Resource
AM Digital Designs Homepage Marketing Frontend Overview 0.0 AM Digital Designs: Marketing frontend, hand-coded in PHP with a MySQL-backed intake form. Designed and engineered solo.

Global Accessibility: Custom Multiple Language Switcher

To truly serve a cross-cultural audience, the platform's architecture had to be borderless.

Dynamic Language Switcher Modal UI Interface 0.3 Dynamic Localization: A custom PHP i18n system I built from scratch: six language files, one t() helper, applied across the entire marketing frontend without a plugin or framework.

Security: Multi-layer Defense Built from the Database Up

Handling cross-cultural research data means handling trust. I engineered the account and platform security system from scratch: six MySQL tables (password resets, email verifications, TOTP 2FA with backup codes, session tracking, audit log, login throttling), a PHP security library with AES-256-GCM encrypted TOTP secrets, and a pure-PHP RFC 6238 implementation for two-factor auth. No third-party auth service, no shortcuts.

Account verification interface with expiring tokens 0.4 Account Verification: Email verification layer before dashboard access, backed by a dedicated email_verifications MySQL table with expiring tokens.
Platform Vault TOTP Two-Factor Authentication setup screen 0.5 Platform Vault: TOTP 2FA setup with QR code, backup codes, and AES-256-GCM encrypted secrets. Pure PHP, RFC 6238 compliant.
The Context

Strategic Market Research.

Before building, I sized the opportunity. I researched who the multicultural audience actually is, who pays to reach them, and why so much of that spend still misses. The slides below are the market analysis that shaped AM Digital Designs and the case for a consented, cross-cultural research network built for agencies.

Market gap analysis slide showing diverse audience market share 0.1 The Gap: Diverse communities make up 40% of the U.S., yet receive a fraction of targeted attention.
Multicultural audience distribution map across US states 0.2 The Audience: Multicultural populations are already the majority in nine states and rising.
Agency buyers and multicultural advertising spend breakdown slide 0.3 The Buyers: A $45.8B multicultural ad category and 15,000+ U.S. agencies needing authentic insights.
Multicultural purchasing power opportunity slide 0.4 The Opportunity: $7T in annual buying power—the fastest-growing consumer segment.
TAM SAM SOM bottom-up revenue market sizing slide 0.5 The Sizing: From total addressable market to a realistic, bottom-up revenue path.
Authentic voice white space opportunity in agency market 0.6 The White Space: The authentic, agency-facing corner of the research market is wide open.
Workflow diagram: Agency, AMD, and client interaction 0.8 How It Works: Agency, AMD, and client unified in one workflow.
Revenue model and participant panel network structure 0.9 The Model: Real, named participant voices and network monetization structure.
Pillar 01

Local Impact: Optimizing Community Frontends.

I partner directly with local businesses to audit and upgrade their digital presence. By engineering a dedicated client subdomain, I intentionally separate local, on-site studio operations in Lawrence from the global research platform.

Service packages for local business digital transformation 0.9 Service Packages: Modular web and UX offerings tailored for local community businesses.
Client review and testimonial post 1.1 Client Testimonial
Local business client portal dashboard 1.2 Client Portal

Fully Integrated Career Portal

To support local business owners, this subdomain's primary purpose is simplicity. By establishing a dedicated career portal, our growing team ensures a seamless experience for managing deliverables and communicating with local talent.

Career portal applicant management view 1.3 Career Portal: Applicant Dashboard
Studio manager job application interface preview 1.4 Studio Manager application directly linked and routed to the Career Portal.
AM Digital Designs branded lanyards and hats 1.5 Studio Marketing: AMD Branded Lanyards & Hats
Pillar 02

Global Reach: Recruiting Targeted Cross-Cultural Panels.

I built a scalable recruitment pipeline to validate designs globally. The goal is to measure how cultural expectations impact software interaction, turning human behavior into structured data.

2.0 Operations Walkthrough: Streamlined screening for international test panels.

The System Behind the Panel

Recruiting globally is only half the work. I engineered the backend to run it, including a participant database, an admin matching dashboard, and a custom PHPMailer invitation system. The system emails users individually to maintain strict privacy. Testers are compensated for their time, and the entire pipeline runs securely without relying on third-party platforms.

Marketing the Pipeline

To recruit diverse participants, I launched the Represent Your Roots Instagram campaign. I designed the visual identity, custom apparel, and physical onboarding kits tied to each participant's native country. Cultural pride drove the signups.

Physical participant onboarding kit packaging 2.1 Physical Onboarding Kits

Instagram Story Campaign

A Story series turning cultural heritage into a call to participate.

Represent Your Roots Instagram Story 1
Represent Your Roots Instagram Story 2
Represent Your Roots Instagram Story 3
Represent Your Roots Instagram Story 4
2.2 Represent Your Roots: The four-part Story series.
Live participant store integrated with Printful on desktop 2.3 Live Store: Participant apparel available through our Printful integration.

On the Ground

The panel extends beyond the digital space. I traveled to meet participants in person to recruit, listen, and build trust. Every pin on the lanyard below represents a country where I have personally met testers. The platform scales digitally, but the relationships are built by hand.

Local participant unboxing AMD kit 2.4 Local Participant: Kit unboxing after in-person onboarding.
Founder's lanyard decorated with international country pins 2.5 Founder's Lanyard: One pin per country visited to meet participants.

The Result

A cross-cultural UX panel spanning multiple continents. Social followers converted into an active participant pool, and eager testers evolved into a global research community.

Alaska participant unboxing AMD kit 2.6 Panel Reach: Alaska
UX Participant located in India 2.7 Panel Reach: India
UX Participant located in Mexico 2.8 Panel Reach: Mexico
Community Participant representing Dominican roots 2.9 Panel Reach: Dominican Republic
Community Participant representing Indonesian roots 2.10 Panel Reach: Indonesia
Community Participant representing South Korean roots 2.11 Panel Reach: South Korea
Community Participant representing Puerto Rican roots 2.12 Panel Reach: Puerto Rico
Pillar 03

Platform: Driven by a Growing AI Agent Aries

Admin restricted security platform interface dashboard
3.0 Admin Dashboard behind testing pipelines wired to database—organizing insights inside an automated agent loop.
Ask Aries AI Agent Client Frontend interface testing 3.1 Client Frontend: Ask Aries Version 1 Testing

To connect local frontends with global test panels, I engineered a platform driven by an evolving AI agent. This engine automates research coordination, indexes participant metrics, and maps user data to accelerate product iteration.

Impact & Roadmap

Where it stands, and where it's going.

AM Digital Designs is an active, evolving build. It began as proof of one idea—that cultural research drives better products—and it's growing into the infrastructure that lets agencies deliver on it. Here's the impact so far:

  • Community impact: Rebuilt digital frontends for local, multicultural businesses, improving how they present, engage, and convert online.
  • Global research reach: Recruited and onboarded a cross-cultural participant panel spanning multiple continents through the "Represent Your Roots" campaign.
  • Unified platform: Connected both sides into a single testing platform driven by Aries, an evolving AI research agent.

What's next

I'm building AMD Global Insights. The platform, the panel, and the case for it all keep growing, and this case study grows with them.

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Research & Engineering Strategy Applied

Qualitative UX Research Impact Local B2C Web Improvements Cross-Cultural Recruitment Operations Growing AI Agent Integration Global Demographic Auditing End-to-End System Testing
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