SpiceDB is an open source, Google Zanzibar-inspired, database system for creating and managing security-critical application permissions.

SpiceDB

when we recommend using an arrow, we recommend doing:

```
definition organization {
  relation member: user
}

definition resource {
   relation org: organization
   permission view = org->member
}
```

and writing a relationship between the resource and its parent org, instead of doing:

```
definition organization {
  relation member: user
}

definition resource {
   relation viewer: org#member
   permission view = viewer
}
```

which requires writing a relationship between the resource and the `member` relation subject on the organization