CARE® — RAMS software for FMEA, FMECA, FTA and RBD

FMEA/FMECA, fault tree analysis, reliability block diagrams and diagnostics for aerospace, defence, rail, automotive, energy and medical systems.

Choosing CARE®

Who should evaluate CARE?: System reliability and safety teams that need connected failure-mode, fault-tree and reliability-block-diagram analyses. CARE supports evaluation of system architecture, redundancy, diagnostics and repair policies. The software is deployed on premises.
What should you prepare?: Your product structure, component or assembly failure data, mission profile and repair assumptions. Existing FMECA worksheets and fiXtress, Synthelyzer, Excel or CSV data can help define the starting model and the required imports.
What can you review?: Failure-mode and critical-item reports, fault-tree cut sets, reliability and availability results, and maintainability or testability metrics. Identify which models and reports are required for your project review.

FMEA / FMECA / RPN: Identify critical failure modes with customizable risk matrices; supports MIL-STD-882E, MIL-STD-1629A, SAE J1739 and IEC 60812. Sub-module: Testability Analysis (FDIR) — evaluate detection and diagnostics coverage to improve maintenance and system safety.
Mean Time To Repair (MTTR): Define assembly failure modes and repair policies, including remove-and-replace time. MIL-HDBK-472 compliant; calculates MTTR and Mct.
Fault Tree Analysis (FTA): Analyze complex scenarios and perform cut-set calculations; IEC 61025 compliant; integrates with FMECA for model seeding; supports nested common causes.
Reliability Block Diagram (RBD) & MTBF allocation: Top-down reliability/availability allocation and calculation; IEC 61078 / IEC 61165 / IEC 61508 compliant; multiple distributions (Exponential, Weibull, Normal, Log-Normal); accounts for periodic preventive maintenance. Sub-module: Monte Carlo — define duty cycles and repair policies, and simulate system behaviour to estimate KPIs (Reliability, Availability, MTBCF, MTTCF, MTTR).

FMEA / FMECA: Flexible risk matrix and templates supporting industry standards.
ECAD integration: Seamless integration with ECADs and fiXtress® for full traceability.
Fault detection, isolation and recovery: Testability analysis and diagnostics coverage, including fault detection and false alarm metrics.
Reliability Block Diagram: Calculate reliability, availability, MTTR, MTBF and MTBCF of complex systems, including networks and Markov chains.
Fault Tree Analysis: FTA for safety-related calculation of event probability or safety function unavailability, including cut-sets and common causes.
Reports: Detailed and Pareto reports for easy identification of safety issues and compliance reviews.

Mission reliability: RBD calculates mission reliability accounting for redundancies, periodic maintenance and repair policies.
Fault isolation: Identify fault signatures and calculate the possibility of isolating a fault to LRU / SRU level.
Common causes: Account for common causes and nested common causes in fault tree models, for safety analysis of systems with high inter-dependability.

Unmatched accuracy: Analysis linked to the latest board / product design; instant updates when designs change.
Streamlined V&V: MTBF, life expectancy and critical component identification at a glance.
Seamless ECAD integration: Accelerate reviews and safety analyses through integration with Synthelyzer®.
Efficiency at scale: Faster RAMS workflows than generic spreadsheets, with consistent templates and reports.
Dependable insights: Insights from FMECA and testability analysis on built-in test efficiency, preventive maintenance and fault isolation.
Superior design quality: Proactively remove single points of failure and optimize redundancy and repair policies.

Unified data import: Ingest the product tree, components and failure modes by importing from fiXtress® into the core CARE® database.
Model & analyze: Validate data quality; build RBD, FTA and FME(C)A models; set distributions and repair strategies; run allocations and Monte Carlo.
Iterate & optimize: Test what-ifs on architectures, redundancies, mission profiles and maintenance concepts to hit targets and budgets.
Design feedback & traceability: Publish prioritized risks, cut-sets, weak blocks and recommended mitigations; maintain full revision traceability to design baselines.

Synthelyzer®: Extracts schematic/BOM and product structures directly from ECAD.
fiXtress®: Provides electrical/thermal stress and realistic MTBF per part to seed CARE® models.
CircuitHawk®: Precise circuit simulation.
Together, these tools provide a digital-twin reliability workflow from schematic to system safety and reliability.

Reliability and availability metrics by block and system, including Availability, MTBF, MTBCF, MTTCF and MTTR.
Critical items lists, minimal cut-sets, weakest links and single-point-of-failure reports.
Risk matrices and risk priority dashboards.
Exportable reports and data exchange with downstream safety and logistics processes.

Which CARE analysis should we evaluate first?: Start with the decision your team needs to make: FMEA/FMECA for failure modes and effects, FTA for combinations leading to a top event, or RBD for reliability and availability of the system architecture. Add repair and testability analysis where they affect that decision.
How should we evaluate CARE against a required standard?: Bring the required standard and edition, your organization’s templates and the expected review deliverables. Confirm the relevant module, model assumptions and report coverage as part of the evaluation; software output is evidence for your engineering review.
How does CARE differ from fiXtress?: fiXtress focuses on component stress, derating, thermal estimation and MTBF prediction for electronic designs. CARE uses reliability and failure data to analyze system failure modes, fault trees, redundancy, repair and diagnostics.