Each document is available in various formats.
The Gombe Mother-Infant Technical Specifications
The canonical description of the system and its capabilities.
The Gombe Mother-Infant Pocket Reference
A compendium of tables and diagrams taken from the Technical Specifications
Entity Relationship Diagrams
The entity relationship diagrams, as separate files, in various file formats.
The ProjectAdministration wiki page contains other, non-database design related, documentation.