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Generate Diagnostics for Run-Time / Maintenance

Diagnostics Based on Expert Knowledge of the Diagnostic Design

Beginning Early in Design Development

Using the inherent power of Integrated Systems Diagnostic Design, or “ISDD”, the Expertise of the Diagnostic Design data is captured and vetted for accuracy and completeness within the eXpress diagnostic modeling process. As the functional and failure causes are propagated throughout the Design architecture during the Design Development process, the functional and failure interdependencies are also established and retained within the eXpress modeling process.

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Effective Fault Codes with Accurate FRACAS Reporting are Dependent on Effective eXpress Diagnostics

Challenges Employing an Effective “FRACAS”

When maintenance activities occur during the sustainment of a complex military asset, the ability to perform at a consistently high level is an important consideration. These activities are often complex without even considering the diagnostic component. But the maintenance activities are the subject matter of this discussion since, after all, and if the logistical footprint is put into place and the assets are not serviceable due to ineffective, inconclusive and costly diagnostic events, then the effort and costs expended on attempting to render the asset available is further squandered.

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Five Simple Steps to an Intelligent IETM

eXpress’ approach and support for complex test types allows diagnostics to be generated for Intelligent IETMs:

  • Significantly Reduced Turn-Times for IETM Updates
  • Simple, consistent approach for Generating IETM Logic
  • Open Architecture to support future enhancements to the IETM environment
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Production Environment & ATE

Reuse the eXpress Diagnostic Design

Circuit Boards and Electronic designs are typically produced in various CAD-type tools rather quickly today. Tools, techniques and processes have greatly benefited the speed and quality of PCB or any CCA development effort, particularly in the Commercial Off-The-Shelf, or “COTS” environment.

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Field or Depot Environment

Ensure Health Management Provides “Diagnostic Conclusions” to the Field

Such Health Management Implementations (IVHM, ISHM, PHM, etc.) have not typically been designed in coordination with the “bridging” of the on-board “diagnostic conclusions” to the off-board diagnostic implementation. This has been a ubiquitous shortcoming of the designing for on-board HM as it is not designed to comingle with the off-board diagnostic activities nearly as diagnostically-conclusive as it would naturally be capable of doing with ISDD.

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Deploying Diagnostics and Leveraging Empirical Data

Design Influence for Ensuring Decision-Making Data Quality

Most every traditional diagnostic approach is constrained by being based on the unintegrated-with-design use of diagnostic design data – or by a test-to-failure probabilistic approach. Both approaches rely upon the algorithmic association of non-design-integrated design data and/or the non-design-integrated fielded data, to the assumed faults based upon an acceptable level of certainty from uncertain test coverages. These are both data-driven approaches to establishing a diagnostic capability. Unfortunately, neither are formed from an integrated approach that leverages the depth and breadth of the design development process, nor in a manner that can fully associate the data retrieved during the integrated support activities against the diagnostic integrity of the fielded design.

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