UX Design & Accessibility for Software

UX Design & Accessibility for Software – WCAG & BFSG Compliance Experts

At zinosign, we transform digital products into inclusive experiences that work for everyone. For nearly 18 years, we’ve partnered with government agencies, medical technology companies, and innovative SMEs to create user-centered software solutions that are not only beautiful and intuitive but also fully accessible and legally compliant.

Whether you’re navigating the new BFSG 2025 accessibility requirements in Germany, implementing WCAG 2.1 AA standards, or redesigning your digital products for maximum usability, zinosign brings certified expertise and proven methodologies to every project. Our approach combines strategic UX research, human-centered design principles, and rigorous accessibility testing to deliver products that serve all users—regardless of ability.

From strategy to implementation. From concept to compliance. From barriers to possibilities.

We don’t just design accessible interfaces—we design better products that expand your market reach, reduce legal risk, and create genuine value for your users.

The Float rehabilitation software interface displayed on iPad showing comprehensive balance training session analysis for patient Baumann, Angela. Screen displays training parameters on the left, session metrics in the center with data tables, and performance graphs at the bottom with green and red indicators showing training progress and deviations. Timestamp shows 26 December 2016, session duration 26 minutes 23 seconds, therapist Anton Sauer. Workspace includes white keyboard and mouse on gray desk.

Digital products that work for everyone.

Zinosign develops responsible UX design with a focus on digital accessibility and MedTech. We create digital products that are clearly structured, user-centered, and compliant with standards. Our approach combines creative design with a deep understanding of user needs and legal requirements.

Human-Centered Design Strategy

Strategic anchoring of user-centered principles for sustainable product success.

UX research & strategy

User insights and strategic analysis to create evidence-based designs that truly resonate.

UX Analysis & User Journey

Understanding user behavior and designing optimal paths for digital product experiences.

UX conception & UI design

Develop intuitive interfaces and interactive prototypes for compelling digital products.

Usability engineering

Standard-compliant documentation and safe, reliable usability for medical device interfaces.

UX Writing & Easy Language

Clear and accessible texts for intuitive communication in all your digital product interfaces.

We design the interface between people and technology.

In today’s digital world, excellent user experience (UX) and accessibility are crucial to the success of your products. zinosign creates digital solutions that not only inspire, but are also inclusive, functional, and measurably effective. We help you achieve your business goals through intuitive and accessible products.

Two overlapping medical imaging displays from Brainlab showing X-ray and CT scan images for surgical planning, demonstrating accessible medical technology interface design

Buzz Digital O.R.

Curve

Brainlab Logo
Curve display interface of Winterhalter industrial dishwasher showing accessible control panel with clear typography, intuitive navigation, and status information for commercial kitchen operations

Display-Design der Winterhalter

UC-Serie

Winterhalter Logo

Accessibility is not a feature. It is the future.

Infographic showing four essential accessibility icons: eye symbol for visual accessibility, ear symbol for hearing accessibility, subtitle symbol for caption accessibility, and wheelchair symbol for mobility accessibility

Digital accessibility is the basis for genuine participation. At zinosign, we provide comprehensive support to help you make your digital offerings—from websites and apps to documents—strategically, technically, and content-wise accessible to everyone. We identify areas where action is needed and effectively break down barriers.

Digital accessibility

Strategic consulting and technical support for inclusive digital offerings.

Accessible documents

Design and testing of PDFs and documents according to PDF/UA and WCAG.

Accessibility & UX Audits

Comprehensive testing of digital products to WCAG & EN 301 549 standards.

About zinosign: 18 Years of Accessibility Leadership

Founded in 2007 with a simple but powerful vision: “Design must work for everyone.” zinosign has become a trusted partner for organizations committed to creating truly inclusive digital products.

Zinaida Iller – Founder & Accessibility Expert

Zinaida founded zinosign after witnessing firsthand how poor design and inaccessible interfaces excluded people with disabilities from digital opportunities. With nearly 18 years of experience in UX design and digital accessibility, Zinaida has dedicated her career to proving that accessibility and great design are not mutually exclusive—they’re complementary.

As a Certified Professional in Accessibility Core Competencies (CPACC) and active member of the International Association of Accessibility Professionals (IAAP), Zinaida brings both practical expertise and deep knowledge of accessibility standards to every project.

Our Philosophy:

We believe that accessibility is not a feature to be added at the end of development—it’s a fundamental principle that should guide every design decision. Great products are inclusive products. When we design for people with disabilities, we create better products for everyone.

“Good design is born from diverse perspectives and experiences,” Zinaida explains. “We firmly believe that diversity creates better products. That’s why we invest in accessibility training, actively partner with organizations that promote diversity in the creative sector, and ensure our team reflects the diversity of the users we serve.”

zinosign LTD is a proud member of the Charter of Diversity, demonstrating our commitment to creating an inclusive workplace and promoting diversity in the design industry. We actively champion diversity and inclusion in all aspects of our work—from hiring practices to project teams to the products we create.

IAAP logo - International Association of Accessibility Professionals

IAAP Member

Professional Member of the International Association of Accessibility Professional

CPACC certification logo - Certified Professional in Accessibility Core Competencies

CPACC Certified

Certified Professional in Accessibility Core Competencies

IAAP D-A-CH chapter logo

IAAP D·A·CH

Member of the IAAP D-A-CH Chapter

Bulgarian Diversity Charter member logo

Diversity Charter

zinosign LTD signed the Charter of Diversity commitment