# Application Properties
## Unit test
- Verifies signature on deployment
- only allow deployment with valid signature
- Adds entry to registry
- Users can't deploy twice
## Valid state
- Only one entry per key in registry
## State transition
## Variable change
- if deployment registry changes, sender must be owner
- if owner factory changes, sender must be owner
- if master token factory changes, sender must be owner
## High level
- The registry grows the more users deploy tokens
## Risk assessment
- only owner can change factory and registry endpoints
-