C-SFRAT Covariate Software Failure and Reliability Assessment Tool
C-SFRAT Covariate Software Failure and Reliability Assessment Tool doesn't compare to Requs Trend
Requs Trend is compliant with IEEE 1633
Ensemble averaging
It's not a competition between models. Our software weeds out the ones that aren't tracking and applies ensemble averaging to the others as per the IEEE 1633 2026. C-SFRAT focuses on one specific model.
Decades of modeling and trending
Over 30 years of failure data
IEEE 1633
Complies with clause 5.4
02 — Requs Trend
Use this Requs component once you have failure data in testing to forecast software reliability growth models
We built Requs Trend to directly map to IEEE 1633
When your team uses Requs Trend, they're utilizing the exact logic expected in these standards.
Capability
Other software reliability growth models software
Our solution
Compliant with industry standards
Selective application of favorite "named" models IEEE 1633 clause 5.4
We cover a cross section of software reliability growth models since any given model won't work for every data set
Graphical forecast of software reliability growth models results if you test longer or fix more defect
No
Instantly see whether the reliability growth meets the system RAM requirement
Estimate multiple RAM metrics
Some
Estimated total defects, DRE, MTBSF, MTBCSF, failure rate
Integration with other tools
None
Supports interface to commonly used bug tracking systems
Models that aren't recommended as per IEEE 163
Other tools employ overly complex models, models that require data resolution that's not feasible for real world, models with faulty assumption like Duane/Crow Amsaa model.
We don't include models that aren't recommended
Why Requs Trend
Built for efficiency and compliance.
01 — REPORTING
Automated Reporting
Stop manually formatting compliance reports. Requs tools are architected to generate the specific deliverables required by international and industry standards
02 — WORKFLOW
Built-in Best Practices
Your software development lifecycle is pre-aligned with industry standards the moment you begin using our tools.
Get the common sense software reliability growth models tool.
Start with the online demo or a demonstration.