Requirement for an effective central reference ontology supporting the OHDSI Network.
| Requirement . | Definition . |
|---|---|
| Standard concepts | Unique concepts of fully pre-coordinated medical entities, to be stated as fact, no negations of facts, no reference to the past, and no flavors of null (unknown, not reported, etc.) |
| Concept domains | Assignment of concepts to domain categories (condition, drug, visit, etc.) |
| Comprehensive coverage | In each domain, standard concepts must cover all possible entities and mappings from terms and codes used in databases around the world |
| Polyhierarchies | Precalculated hierarchies organizing concepts |
| Efficiency | Computationally efficient data model |
| Use case focus | Storing and analyzing patient-level data for evidence generation |
| Requirement . | Definition . |
|---|---|
| Standard concepts | Unique concepts of fully pre-coordinated medical entities, to be stated as fact, no negations of facts, no reference to the past, and no flavors of null (unknown, not reported, etc.) |
| Concept domains | Assignment of concepts to domain categories (condition, drug, visit, etc.) |
| Comprehensive coverage | In each domain, standard concepts must cover all possible entities and mappings from terms and codes used in databases around the world |
| Polyhierarchies | Precalculated hierarchies organizing concepts |
| Efficiency | Computationally efficient data model |
| Use case focus | Storing and analyzing patient-level data for evidence generation |
Requirement for an effective central reference ontology supporting the OHDSI Network.
| Requirement . | Definition . |
|---|---|
| Standard concepts | Unique concepts of fully pre-coordinated medical entities, to be stated as fact, no negations of facts, no reference to the past, and no flavors of null (unknown, not reported, etc.) |
| Concept domains | Assignment of concepts to domain categories (condition, drug, visit, etc.) |
| Comprehensive coverage | In each domain, standard concepts must cover all possible entities and mappings from terms and codes used in databases around the world |
| Polyhierarchies | Precalculated hierarchies organizing concepts |
| Efficiency | Computationally efficient data model |
| Use case focus | Storing and analyzing patient-level data for evidence generation |
| Requirement . | Definition . |
|---|---|
| Standard concepts | Unique concepts of fully pre-coordinated medical entities, to be stated as fact, no negations of facts, no reference to the past, and no flavors of null (unknown, not reported, etc.) |
| Concept domains | Assignment of concepts to domain categories (condition, drug, visit, etc.) |
| Comprehensive coverage | In each domain, standard concepts must cover all possible entities and mappings from terms and codes used in databases around the world |
| Polyhierarchies | Precalculated hierarchies organizing concepts |
| Efficiency | Computationally efficient data model |
| Use case focus | Storing and analyzing patient-level data for evidence generation |
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