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Assess a System’s Ability to Meet Testability & Diagnostic Requirements

Legacy Design Applications

For legacy, or existing designs that are currently fielded, folks underestimate the value of discovering the diagnostic capability of their existing design. There is still tremendous opportunity for value, even though the design is not able to be influenced for maximum diagnostic effectiveness. A very brief look at the design will still increase sustainment effectiveness with scalable alternatives, including determining the diagnostic integrity baseline for the legacy system.

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Simulation-based Assessments

As an integrated component of ISDD, we can reuse our existing Integrated Systems’ (fielded product) eXpress models in the companion Operational Support Simulation tool, “STAGE”.

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Discovering the Diagnostic Integrity “baseline”

Discovering the Diagnostic capability of the design is the first and most important step to undertake if one is serious about truly improving the sustainment costs in terms of operational cost, availability (“up-time”), operational success (“system reliability”), and safety. The Diagnostic Integrity or “Diagnostic Capability” of a fielded system or equipment can be determined for any design.

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Calculation of Advanced Testability and Diagnostic Metrics

As the eXpress models are integrated into the system, the design must be able to detect the failures within the context of an integrated diagnostic model, which is a woeful inadequacy of most every other testability analysis. As the models are integrated more “test” constraints become apparent due to the integrated system posing new testing accessibility restrictions.

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Integrate Lower-Level Subsystem Designs

Designing for the System or Vehicle sustainment lifecycle must consider the adopting of a well-planned diagnostics engineering process using that facilitates a multi-organizational approach to advanced and robust tools that do far more than simply “share data”.

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Combining Multiple Technologies and Design Domains

Once the diagnostic data sharing paradigm has been instituted, ISDD establishes an enriched integrated diagnostic design development environment that, while protecting the sensitivity and proprieties of any externally-supplied design data, enables a comprehensive and agile data integration mechanism for the System Integrator to “integrate” and “repurpose” the shared data into the System, regardless of design size, complexity or mixture of Design Domains

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Board-Level Assessments

The eXpress Diagnostics Model is effective for all levels of the design architecture and can be expanded or enriched to facilitate the Diagnostic Design or the Sustainment objectives at any time. The approach for initiating towards the goal of achieving diagnostic effectiveness for any design begins with identifying where we are in the design development or design support lifecycles, while also considering the diagnostic or sustainment requirements or objectives. The eXpress model captures and extends diagnostic expertise regardless of where we are in the design or sustainment lifecycles and for any sustainment implementation. Scalability of…

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Concurrent Engineering or “Scalable” Design Development

The ISDD design development process fosters the diagnostic integration of both interim and final development deliveries of the design’s related diagnostic engineering data. The diagnostic engineering data will minimally include the determining of the most optimum test placement of sensors, BIT or test observability, if any, by the describing of the test coverage per each test per any operational mode or condition of the design as a function of the operational System.

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Subsystem-Level Assessments

Scalability of the System Engineering Process One of the foremost challenges in large system design is keeping the engineering effort scalable. This is typically where engineering software becomes invaluable. As such, the question becomes, “How scalable is the software you are using?”

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Calculation of Standard Testability Metrics

Since DSI is the original pioneer of the need for Testability as an integral component of the design development process for the US Department of Defense, and has mentored William Keiner, author of the first Testability Standard (MIL-STD 2165) prior to its acceptance in 1981, we have continued to lead industry in this purpose.

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Full Vehicle/Product Assessments

Scalability of the System Engineering Process One of the foremost challenges in large system design is keeping the engineering effort scalable. This is typically where engineering software becomes invaluable. As such, the question becomes, “How scalable is the software you are using?”

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System of Systems (SoS)

Scalability of the System Engineering Process One of the foremost challenges in large system design is keeping the engineering effort scalable. This is typically where engineering software becomes invaluable. As such, the question becomes, “How scalable is the software you are using?”

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Introducing “ISDD” to the Systems’ Integrator

Many of the ideas and concepts regarding the targeting of an “agile” maintenance strategy for System or the System of Systems (SoS) begin with the formalizing of a unified approach to collectively capture the functionality of the participating designs into a robust integrated systems’ design development and process. But this design development process must be able to fully assess not solely the top-down functional allocation Systems’ Design and Sustainment Requirements (Operational Availability, etc.) but also be fully positioned to assess and validate the functional and failure cause (root cause) propagation from the bottom-up.

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Scalability of the System Engineering Process

One of the foremost challenges in large system design is keeping the engineering effort scalable. This is typically where engineering software becomes invaluable. As such, the question becomes, “How scalable is the software you are using?” DSI has always recognized this problem as one of the principle design goals of the eXpress software. It is fairly easy to identify some key areas in which the system size becomes a concern: Introducing additional lower-level data Changing connectivity (model structure) Changing testing and diagnostic approaches Validating designs against the specification or other models Solving the scalability problems…

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Facilitating All Levels of Design Architecture

The eXpress Diagnostics Model is effective for all levels of the design architecture and can be expanded or enriched to facilitate the Diagnostic Design or the Sustainment objectives at any time. The approach for initiating or the enriching the diagnostic effectiveness of any design begins with identifying where we are in the design or support lifecycles as well as understanding our diagnostic or sustainment requirements or objectives. The eXpress model provides diagnostic expertise regardless of where we are in the design or sustainment lifecycles and for any sustainment implementation. The contextual usage of the terms…

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Targeting an Agile Maintenance Strategy for Systems of Systems

Many of the ideas and concepts regarding the targeting of an “agile” maintenance strategy for System of Systems (SoS) begin with the formalizing of a unified approach to collectively capture the functionality of the participating designs into a robust integrated systems’ design development and process. But this design development process must be able to fully assess not solely the top-down functional allocation of the SoS Design and Sustainment Requirements (Operational Availability, etc.) but also be fully positioned to assess and validate the functional and failure effect propagation from the bottom-up. Introducing Integrated Systems Diagnostic Development,…

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Four main goals of Diagnostic Engineering

The eXpress Diagnostics Model is effective for all levels of the design architecture and can be expanded or enriched to facilitate the Diagnostic Design or the Sustainment objectives at any time.

The approach for initiating towards the goal of achieving diagnostic effectiveness for any design begins with identifying where we are in the design development or design support lifecycles, while also considering the diagnostic or sustainment requirements or objectives. The eXpress model captures and extends diagnostic expertise regardless of where we are in the design or sustainment lifecycles and for any sustainment implementation.

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