TurtleDock
SchoolDeck · Feature

How a group is modelled, technically

A group is one tenant with campuses beneath it. Definitions — fee heads, attendance rules, grading bands, thresholds — are set at the trust and inherited; values are supplied per campus. Data is isolated per campus by default, and a student transferring between them carries one record.

This is the data model. How to run a group on it — what to centralise, what to leave to a principal — is the multi-branch use case.

Written by Checked by MuthuLast reviewed

The technical question a group asks is narrower than the operational one: what exactly is shared, what is isolated, and what happens to a student who moves between campuses in October.

Shape
One trust, campuses beneath it
Inherited
Definitions, never values
Isolation
Per campus by default
Identity
SAML per campus OU where required
01

Inheritance, and what a campus may override

  • Defined at the trust, not overridable. What a fee head includes, what counts as present, where grade boundaries fall, what triggers a flag.
  • Supplied per campus. The amounts, the thresholds within an allowed range, the academic calendar, the report card format where boards differ.
  • Never shared. A campus’s student data, unless a trust-level role is explicitly granted access.

A campus can change a value and cannot change a definition. That constraint is unpopular in week one and is the only reason a group figure means anything in November.

02

Transfers between campuses

A student moving within the group carries their record — attendance history, fee ledger, results — rather than being admitted afresh. Where the group shares an admission series this is direct; where campuses number independently, the record holds both and the group identifier is the stable one.

The alternative, which is what most groups do today, is issuing a TC and re-admitting. That works, and it also breaks the student’s history at exactly the point a parent is most likely to ask about it.

FAQ

Questions people ask

Phrased the way they arrive, answered so each one stands on its own.

Can campuses on different boards sit under one trust?

Yes. Board is a property of the section, so a CBSE campus and a state board campus coexist. Attendance and collection compare; marks do not, and a roll-up that ranks campuses on marks is misleading.

Can a principal see another campus?

Only if the trust grants it. Isolation per campus is the default; trust roles see the roll-up and can drill in.

How many campuses does the model hold?

Groups run to around forty. Past a handful the limit is organisational — whether the trust will fix definitions centrally — rather than technical.

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Checked by the Implementations desk on 6 September 2026. Corrections go in the page, dated, rather than quietly.

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