The structure of the BIDS schema as seen from a top-level file view:
schema ├── BIDS_VERSION ├── SCHEMA_VERSION ├── meta │ ├── context.yaml │ └── expression_tests.yaml ├── objects │ ├── columns.yaml │ ├── ... │ └── suffixes.yaml └── rules ├── checks ├── ... └── tabular_data
The BIDS Schema can be be divided into three major components:
2) Rules (
- Validation rules for entity ordering, sidecar values, and both common and modality specific rules
- Source of filename tempaltes and tables describing sidecar fields and TSV Columns
3) Meta (
- Defines a "context" object to which rules can be applied
- Expandable to definitions, tests, or rules related to the schema itself
Note: object dot notation e.g.
rules.checks.*is used when referencing parts of the schema throughout this document. Bracket notation such as
objects['columns'][*]is equally valid, but more difficult to read.
*, represents a glob and is used to denote matching any string/object.
Examples are hyperlinked to parts of the schema (source code) where applicable, simply click on the blue links to reach those parts of the schema.
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