FeatureBuilt · in the lab
Reliability
FMEA, fault trees, Weibull.
Use this add-on:
Screenshots and a short video come with the listing (AL.3).
Overview
Reliability is a planned add-on for PartCraft, BimCraft and CadCraft (roadmap row XE.8). It is meant to hold failure mode analysis (FMEA), fault trees, reliability block diagrams and Weibull life data analysis. It is not built as an add-on: no command or panel works today.
Who it’s for
- Design and quality engineers who run FMEA and fault tree studies (intended).
- Reliability engineers who fit life data and compute availability (intended).
What you can do
- Nothing works today: the add-on is planned. What is intended for row XE.8: FMEA and FMECA, fault trees, reliability block diagrams, Weibull, Markov models and risk files.
Methods and standards
The planned add-on sits on the risk engine (engine.risk), which is developer-space and is not added by people. The library lib/risk has FMEA and FMECA after IEC 60812 and MIL-STD-1629A, fault trees with exact probability, minimal cut sets and importance measures, reliability block diagrams, Weibull fitting by maximum likelihood and median rank regression, Markov chains and availability, and a risk matrix and risk file process after ISO 14971 where the policy is the maker's. No app mounts it.
Data and sources
Planned: no data ships. Failure rates and ratings come from the person.
Verification
Not yet checked as an add-on: planned, no add-on test exists. The engine has tools/risk-test/test.mjs, recorded in docs/0.8-sessions/xe-schedule-risk_PART_3.md as 108 passed, 0 failed on 2026-10-29. It has not been compared with a commercial reliability tool.
Limits
Planned and not built. No host mounts the engine and no help line exists. Results depend on the data entered; a risk file here does not make a product compliant with any standard.
Files and formats
Planned: risk files as JSON from the engine. No app reads or writes them yet.
Get started
- This add-on is planned (roadmap row XE.8). Nothing is installed or switched on today.
- Follow row XE.8 in /roadmap-issues for its status.
- Until then the risk library is an engine only, with no command or panel in an app.
Languages
No languages are listed for this add-on yet. Its maker may add some.
Works in
| Edition | Works | Note |
|---|---|---|
| Browser (/use) (yours) | Added on demand | Fetched the first time you use it, then kept for offline use. |
| Studio from getcadcraft.com | Added on demand | Fetched the first time you use it, then kept for offline use. |
| Microsoft Store | Added on demand | Fetched the first time you use it, then kept for offline use. |
| Google Play | Added on demand | Fetched the first time you use it, then kept for offline use. |
| iPad and iPhone (App Store) | Included; switch it on | Part of the reviewed app; your list switches it on. |
| Custom build | Added on demand | Fetched the first time you use it, then kept for offline use. |
Comes with
- Risk and reliability 400 KB
Adding it brings these too. Engines are shared: each downloads once for every add-on that uses it.
Needed by: Data center and mission-critical facilities, Facilities and maintenance engineering, Reliability and safety engineering.
Versions
| Version | Channel | Date | What changed |
|---|---|---|---|
| 1.0.0 | lab | October 31, 2026 | First version in the Library. |
Licence and maker
CadCraft (CadCraft, first-party). Licence: Apache-2.0. Dependencies carry their own licences, listed on their pages.