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Maintenance & Safety

Diagnostic-Informed FMECA Assessments

A couple of the design assessments typically performed by Reliability Engineering is the Failure Modes and Effects Analysis, or “FMEA” and the Failure Modes Effects and Criticality Analysis, or “FMECA”. The material difference between the two analyses is that the FMECA assessment includes the defining of the “criticality” or “severity” of the failure modes in time to provide feedback for improving the design. While this is just a very basic introduction to these analyses, the important point to realize is that the performing of a FMEA or a FMECA can be rather extensive for large or complex designs.

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Diagnostic-Informed FTA Assessments

The Fault Tree Analysis, or “FTA”, is a top-down, analysis of failure propagation. It employs a deductive analysis of the failures to determine which combination of lower-level, or “primary” failures can combine to cause a “critical event” or an “undesired state” of the fielded system. It is used particularly for safety and risk assessment for air-worthiness certification and in other safety-critical systems, products or industries. In design development, the FTA analysis serves as an instrument to provide feedback of areas in the design that need to be improved during design development, whether, for example, to add design redundancy or improve component/subsystem reliability.

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Data Interoperability Throughout Design Development

Data Interoperability throughout Design Development and the Sustainment Lifecycle(s) DSI has focused on design data interoperability for more than thirty years. We realized that, should programs or organizations make an investment into the creation of any data artifacts during the design development or the design sustainment lifecycle(s) they’re covered in either or both lifecycle(s)! We understand that there’s an investment in generating a shared design data base within the design disciplines that, through ISDD, could be leveraged to serve more collaborative objectives in support of the development of the design, and then later during sustainment.…

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Data Interoperability Targeting Sustainment Implementations

Once captured in eXpress, many lower level designs can be fully brought right into the test environment from the design. Whether this is a capability that is suited for the lab environment to work with common Automatic Test Equipment or later in the field to maximize operational objectives, ISDD leverage data interoperability for test and far beyond!

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