From open source healthcare to semantic data infrastructure—the research foundation behind the Semantic Data Charter (SDC4)
When we incorporated Axius SDC, Inc. in October 2025, we weren't starting from scratch. We were taking 15+ years of validated research, proven concepts, and international collaboration and bringing it to market.
This is the story of how semantic data modeling evolved from academic research in healthcare to a production platform serving any domain—and why that foundation matters.
The Beginning: Open source healthcare applications for practice management and electronic health records.
Academic Validation: Multi-Level Health Information Model—proving semantic data modeling works in healthcare.
Domain-Agnostic Generalization: Taking healthcare concepts to any domain—finance, government, research, commerce.
Production Platform: Research → Commercial transition. Built on proven foundation, ready for market.
With 1,228 commits in 4 months and our latest commit from October 25, 2025, we're actively building. Our sdcvalidator package is production-ready on PyPI. This isn't slides—it's working code.
MLHIM → S3Model → SDC4 represents intentional evolution: healthcare → domain-agnostic → commercial. Each phase has working code, specifications, and publications. 2,200+ commits across 12 years with no gaps in development.
Our team has 17-25 years of partnership, verified by ICMJE disclosure forms (the gold standard journals use). These forms are verified independently—they cannot be faked. Our collaboration is documented in co-authored publications and joint projects.
165+ citations and 12+ peer-reviewed publications in top venues (AMIA, JCI, JAMA, IEEE/ACM) prove the concepts work. This isn't untested theory—it's validated research ready for production.
Axius SDC, Inc. is founded by three partners who've been working together for decades:
Founder & CEO
Creator of FreePM, MLHIM, S3Model, and SDC4. 25+ years in semantic data modeling and open source healthcare.
Co-Founder & Partner
Professor, Universidade do Estado do Rio de Janeiro (UERJ). 17 years collaboration. Expert in health informatics and social epidemiology.
Co-Founder & Partner
Professor, Algoma University. 25 years collaboration. Expert in health informatics implementation and adoption.
100% founder-owned. No outside investors. No board pressure. Just three researchers who've spent decades solving this problem, now bringing it to market.
We don't ask you to "trust us"—we provide artifacts you can independently verify. That's why we've made our entire historical archive public.
2,200+ commits with full Git history (2013-2025) in our public historical archive
All papers with DOIs verifiable on Google Scholar and PubMed
sdcvalidator package live on PyPI. Latest commit from yesterday.
We're not a new startup with an untested idea. We're 15+ years of validated research, ready for production. Our foundation is solid. Our team is experienced. Our vision is clear.
Want to learn more? Let's talk about how semantic data infrastructure can transform your organization.
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