Shared equipment warranty registry
Hypothetical. Not a client, not a result.
// The problem
An equipment maker, its distributors and the contractors who install its furnaces and heat pumps each keep their own install and service records, and warranty claims stall over who did what and when.
// What we would build
A warranty registry where installers record each unit's serial number, install date and service visits, on a private permissioned ledger the maker and its main distributors each run a node of, so the record a claim depends on cannot be changed later. If the maker's own database is trusted by everyone, it is cheaper, and we will say so.
// What is in it
- Installers scan the unit's serial and record the install with photos
- Service visits added to the unit's record by any authorised contractor
- Homeowners see their unit's history and warranty status
- Claims checked against the record, with nothing editable after the fact
- A node for the maker and each main distributor
// Stack
- Next.js
- Hyperledger Besu (private, permissioned)
- PostgreSQL
- AWS
// estimate
- Build
- ≈ US$119,000 to US$182,000, delivered within 24 weeksCAD 169,100 to 258,700
- Hosting
- ≈ US$176 a monthCAD 250 a month
- Support
- ≈ US$2,500 a monthCAD 3,565 a month
Prices in your currency are estimates from today's Bank of Canada rate. All invoicing is in CAD or USD.
Timeline by milestone
- Discovery
- 2.9 to 3.4 weeks
- Architecture
- 0.4 weeks
- Design approved
- 2.9 to 4.9 weeks
- Core features
- 1.4 to 2.4 weeks
- Full build
- 0.9 to 1.9 weeks
- Devnet
- 2.9 to 4.9 weeks
- Testing and fixes
- 0.4 weeks
- Testnet
- 2.9 to 3.4 weeks
- Launch
- 0.9 to 1.4 weeks
- Mainnet
- 0.9 to 1.4 weeks
How it is paid
- Deposit 20%
- CAD 33,820 to 51,740
- Discovery 2.5%
- CAD 4,227.50 to 6,467.50
- Architecture 6.7%
- CAD 11,329.70 to 17,332.90
- Design approved 2.5%
- CAD 4,227.50 to 6,467.50
- Core features 7.5%
- CAD 12,682.50 to 19,402.50
- Full build 5%
- CAD 8,455 to 12,935
- Devnet 20.2%
- CAD 34,158.20 to 52,257.40
- Testing and fixes 2.5%
- CAD 4,227.50 to 6,467.50
- Testnet 13.4%
- CAD 22,659.40 to 34,665.80
- Launch 2.5%
- CAD 4,227.50 to 6,467.50
- Mainnet 7.2%
- CAD 12,175.20 to 18,626.40
- Holdback, 30 days after launch (10%)
- CAD 16,910 to 25,870