Data Model

This page contains a proposal for a streamlined and generalized SciTran data model as delivered by the RESTful API.

• Fields marked with † are only returned by detail endpoints, such as /projects/123, but suppressed by list endpoints for efficiency, such as /projects.
• Only italicized fields are guaranteed to be returned by all requests.

Group

Field	Type	Description
_id	string	database ID
name	string	group name
roles	[Permission, …]	array of user roles

User

Field	Type	Description
_id	string	database ID
firstname	string	first name
lastname	string	last name
email	email	email address
avatar	URL	avatar image URL
wheel	boolean	user can become superuser
root	boolean	user is superuser
preferences†	object	application-specific sub-document of user prefernces

Permission

Field	Type	Description
uid	string	database ID of permission holder
access	ro|rw|admin	access level
site	string	permission holder's scitran instance

Container

Field	Type	Description
_id	string	database ID
creation	timestamp	creation time (automatically set)
modification	timestamp	modification time (automatically update)
notes	[Note, …]	array of Note objects
files	[File, …]	array of File objects
analyses	[Analysis, …]	array of Analysis objects
permissions‡	[Permission, …]	array of Permission objects
public	boolean	indicates whether or not container is public
label	string	application-specific label
tags	[string, …]	array of application-specific tags
metadata†	object	application-specific information

‡ Only the permission of the requesting user is included for list requests and also for detail requests, if the current user does not have admin permissions.

Project (extends Container)

Field	Type	Description
group	string	database ID of project owner

Session (extends Container)

Field	Type	Description
group	string	database ID of parent project owner
project	string	database ID of parent project
uid	string	data-derived unique ID
timestamp	string	data capture time in ISO format
timezone	string	data capture time zone
subject	Subject	subject information

Subject

Field	Type	Description
firstname	string	first name
lastname	string	last name
firstname_hash	string	hash of first name
lastname_hash	string	hash of last name
sex	male|female	sex
age	int	age at time of session in seconds
code	string	subject code
tags	[string, …]	array of application-specific tags
metadata†	object	application-specific sub-document

Acquisition (extends Container)

Field	Type	Description
session	string	database ID of parent session
collections†	[string, …]	array of collection IDs
uid	string	data-derived unique ID
modality	string	instrument type of primary data
datatype	string	type of primary data
timestamp	string	data capture time in ISO format
timezone	string	data capture time zone

Collection (extends Container)

Field	Type	Description
curator	string	user ID of collection creator

Note

Field	Type	Description
user	string	user ID of note writer
creation	string	creation time in ISO format
text	string	note text

File

Field	Type	Description
mimetype	string	MIME type
filetype	string	internal file type
filename	string	name of file
filesize	int	size of file
hash	string	hash of file
modality	string	instrument type (ex 'MRI')
datatypes	[string, …]	array of strings (ex 'DICOM')
unprocessed	boolean	false if file has not been processed
tags	[string, …]	array of application-specific tags
metadata†	object	application-specific information

Analysis (currently undefined)

Field	Type	Description
…
tags	[string, …]	array of application-specific tags
metadata†	object	application-specific information