System Analysis
Reliability Prediction
Estimate failure rates to compare designs and support reliability decisions with stated assumptions.
Purpose & Benefit
When This Activity Helps
Use when comparing architectures, identifying component contributors or preparing a customer reliability assessment. A prediction is a planning input and should be interpreted alongside test and field evidence.
Project Information
Typical Inputs
The scope is tailored to the available evidence. Useful inputs include:
- Bill of materials and system architecture
- Component stresses and operating environment
- Requested prediction method and available supplier data
Engineering Approach
How SPACEREL Supports Your Project
SPACEREL selects an appropriate handbook, supplier-data or evidence-based method for the application and available tools. Component contributions and sensitivity to assumptions are reviewed. MTBF is not presented as a guaranteed service life or a demonstration of wear-out behaviour.
Documented Outcomes
Typical Deliverables
Deliverables are agreed before work starts and can include:
- Failure-rate and reliability prediction report
- Model assumptions and contribution breakdown
- Sensitivity review and design recommendations
Reliability Toolkit
Related Calculators
Convert an established MTBF into reliability and FIT under a constant-hazard exponential model.
Methods & Evidence
Selected References
- IEC Technical Committee 56: Dependability
Select the applicable methods and requirements for the product and programme.
Project Context
Where This Activity Can Help
Explore the relevant lifecycle stages.