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Intermediate

Grant Temporary Smart Home Access

Design guest access that gives a visitor only the smart-home controls they need, for a clear period, with easy review and revocation.

Mobile

The brief

Understand the problem

Background

Guests may need a door lock, lights, and climate controls but should not automatically see cameras, household routines, or account settings. Broad household sharing makes temporary access hard to understand and remove.

User context

Mei's cousin will feed her cat over a long weekend. He needs front-door access, hallway lights, and the thermostat between Friday evening and Monday morning, but no camera history or alarm administration.

Product problem

A resident needs to compose a least-privilege guest role and confirm that it actually expires across devices with different connectivity.

Objective

Create guest invitation, permission review, first-use guidance, and expiry handling for one home visit.

What to design

Define the experience

Required experience

  • Select a guest, purpose, access period, and specific devices
  • Preview exactly what the guest can see and control
  • Let the guest accept and verify access on their phone
  • Review activity, extend deliberately, or revoke immediately

Screens and states

  • Guest access setup
  • Permission preview
  • Guest home view
  • Access activity and expiry

Core user flow

Follow the critical path

  1. 01

    Mei chooses pet care and sets a Friday-to-Monday access period

  2. 02

    She grants the front door, hallway lights, and thermostat within safe limits

  3. 03

    Her cousin verifies his phone and previews how to unlock the door

  4. 04

    During the visit, Mei sees only relevant access events

  5. 05

    The grant expires Monday and connected devices confirm removal

Product rules

Requirements and constraints

Requirements

  • Scope access by person, device, capability, location, and time
  • Exclude cameras, recordings, routines, and administrator settings by default
  • Explain unavailable or partially connected devices before invitation
  • Give the guest clear active-period and expiry information
  • Confirm revocation separately for each device and surface unresolved removal

Constraints

  • Some household devices do not support granular permissions
  • Guest invitations require a verified contact method
  • An offline device may retain its last synchronized access state temporarily

Reality check

States worth considering

A guest changes phones during the access period
The homeowner extends access after it has expired
A lock remains offline during revocation
Two residents try to edit the same guest grant

Finish line

What to deliver

  • Four mobile screens showing least-privilege setup, guest use, and partial expiry confirmation

Optional direction

Visual resources

Use these as a starting constraint if you want one. They are not part of the required solution.

Color palette
#79674F
#EDE6D2
#090C0F
#B7B7B7
#A7A7A7
Font pairing
OvoMulish

Ovo & Mulish

Clear interface writing gives people the confidence to understand what changed and decide what to do next.

Icons
Illustrations

Theory to review

UX principles for this brief

Use these as decision lenses, then validate the design with the people and context in the brief.