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In HealthModEx, models can be distributed under different open-source licenses. These licenses define how models may be used, modified, and shared. In addition to free licenses, optional paid services are available for extended validation, ontology search, data sourcing, and expert support.
Table Of Contents
Licensing Options
Open-source models may use various licenses. Each comes with specific features and financial strategies for platforms and users.
| Scenario | License | Key Features | Financial Strategy |
| Maximize adoption & commercialization | MIT/BSD | • Permissive: allows proprietary derivatives • Minimal restrictions | • Charge for premium support, documentation, or enhanced features • Platform earns via transaction fees |
| Balance openness & IP protection | Apache 2.0 | • Permissive with explicit patent grants • Compatible with most licenses | • Dual licensing: free Apache version + commercial licenses for proprietary integrations |
| Ensure open derivatives | GPLv3 | • Copyleft: modifications must remain open-source • Protects against proprietary forks | • Monetize via consulting, training, certifications • Platform facilitates paid support services |
| SaaS/networked models | AGPLv3 | • Extends GPL to network/cloud • Ensures service providers share modifications | • Charge for hosted solutions or API access • Platform takes SaaS distribution fee |
| Creative Commons | CC 4.0 | • Requires attribution to original creator • Ensures modifications shared | • Charge for premium support or enhanced features • Platform earns via transaction fees |
Paid Options
Paid add-ons extend licensing by offering validation, additional data, ontology searches, or negotiated support.
| Title | Description | Price | Who Can Access |
| Overall Model Validation (AdViSHe) | Provides an overall score (% “yes” for all criteria) with CDA-AMC tool | $100/model | End-users & modelers |
| Breakdown of Score (CDA-AMC / CADTH) | Scores of individual criteria comprising overall validation score | $500/model | End-users & modelers |
| Ontology Advanced Search | Use of additional ontology in addition to embedded NCI ontology | $200 | End-users & modelers |
| Additional Data Sources | Data from UMD (Premier databases) & Icahn School of Medicine at Mount Sinai for rerun comparisons | Varies | End-users & modelers |
| Tripartite Negotiations | Negotiated by HealthModEx personnel on behalf of modeler/data provider | Varies | End-users & modelers |
| Updating Models | Negotiated with developer or Expert Advisory Panel | Varies | End-users & modelers |
| Miscellaneous Services | Market access, reimbursement, gov’t submissions, quality of life assessments, competitive landscape, model licensing | Varies | End-users & modelers |