From framework to classification practice.
The PHCF Classification Manual Version 0.1 provides the architecture, definitions, recording logic and guidance needed to apply the developmental system consistently.
A structured reference for classification practice.
The manual is designed in the tradition of classification references. It separates conceptual rationale from classification guidance and records uncertainty rather than hiding it.
The online manual provides direct access to the framework’s definitions, classification guidance, interpretive cautions and application resources, while stable releases preserve version history.
Versioned releases and transparent revision.
Each PHCF release will preserve a public change history documenting revisions to definitions, classification guidance and the supporting evidence base.
Explore the Classification Manual online.
Universal Core
Definitions, classification guidance, evidence requirements and interpretive cautions for the Universal Core.
Clinical Presentation Modules
Application guidance showing how PHCF can be used alongside conventional assessment of specific clinical presentations.
Measurement and validation
Research guidance covering operationalisation, reliability, construct validity, incremental validity and clinical utility.