eXpress

eXpress is a model-based diagnostics engineering software application for the design, capture, integration, evaluation and optimization of complex or large-scale system diagnostics, prognostics, health management, testability analysis, failure mode and effects analysis and system safety analysis.

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STAGE

STAGE simulates aspects of Diagnostic, PHM and ISHM Engineering, showing the support capabilities of a System during its useful lifetime. Many types of analysis can be performed, including Testability, System Reliability & Mission Success, Sustainability, and Logistics Resource Allocations.

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Run-Time Authoring Tool

The Run-Time Authoring Tool is DSI’s solution for publishing of eXpress diagnostic design data and integration and deployment of system diagnostic and prognostic designs within real-world troubleshooting environments.

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DSI Workbench

DSI Workbench allows for deployment of eXpress or user supplied diagnostics within production and maintenance troubleshooting environments.

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Services

Engineering Support Services
Our experts have experience from working on the some of the most challenging projects for diagnostic design, testability and critical fault analysis.

Diagnostic Proposal Support

DSI can assist you in proposal development for the design and/or analysis of diagnostics and prognostics to provide assistance for designing, improving or maintaining any program regardless of size or complexity.

Training

Choose from Formal, On-Site or Online courses, DSI can assist you and your team with all your diagnostic training needs.

Engineering Support Services

The DSI team can provide you various levels of modeling, analysis or software support depending on your program or project needs.

Video Tutorials

Video Tutorials range from providing capability overviews to detailed step-by-step procedures in the use of the DSI products.

Maintenance Services

Software maintenance plans include updates, enhancements and various levels of support to meet your specific needs.

Software Development

DSI can assist you with Custom Interface Development in support of your diagnostic engineering endeavors.

Deploy Diagnostics for Troubleshooting

Deploy Diagnostics for Troubleshooting
Five Simple Steps to an Intelligent IETM
eXpress’ approach and support for complex test types allows diagnostics to be generated for Intelligent IETMs:

Guided Troubleshooting – Assess Optimize and Leverage Knowledge

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.

Design Data Interoperability, Reuse and Traceability

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)!

Generate 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”.

Generate 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.

Integrate Test and Diagnostic Tools via ATML

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)!

Balance Design to Optimize Sustainment Alternatives

The eXpress diagnostic modeling environment is essential for determining the diagnostic designs’ ability to “Uniquely Isolate” any failures (or loss of function). This capability, designated as “FUI” in eXpress, enables the assessment to determine if the design is able to isolate between the sensor and any of the functions contained on the object that is being sensed.

Reduce False Alarms / System Aborts

While there is plenty of leeway for interpretation or the meaning of a False Alarm (FA) as it may pertain to any particular industry or event, we will consider the FA to be the result of an incorrect indication of a “failure” as observed and reported by any sensing device.

Reduce or Eliminate Diagnostic-based SA’s, FA’s, NFF’s, CND’s and RTOK’s

These are two related but separate endeavors. The Design for Test (DFT) and Design for Testability (DFT)processes and objectives are very often confused among experts in the two separate design discipline(s).

Influence the Design for Health Management or PHM

In recent years, military and aerospace programs have dedicated significant resources toward research in prognostics—developing sensors and measurements that they hope will not only improve system readiness, but also reduce the costs of product sustainment.

Influence the Design for DFT

Design for Test, Testability, Sustainment, etc. must be a robust, multiple disciplinary-inclusive design assessment activity without domain barriers that considers the sustainment objectives and any inherent diagnostic constraints of the Integrated Systems design.

Generate Diagnostics for Run-Time Maintenance

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.

Determine the Impact of Diagnostics upon Reliability Maintenance & Safety

The definition of a False Alarm, unfortunately is dependent upon your specific perspective. In a very general sense, it is the improper reporting of a failure to the operator of the equipment or system.

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

With eXpress, your Testability Analysis is automatically created right from your eXpress model. This is one of the flagship capabilities of eXpress that was originally conceived from the very beginning – back into the 1970’s actually, with LOGMOD.

Improve the Diagnostic Capability of a System or Design

There are two (2) general approaches to capturing the IVHM (or “ISHM”) design within the eXpress environment – either using a “Top-Down” or a “Bottom-Up” approach.

Trade Studies

With eXpress, your Testability Analysis is automatically created right from your eXpress model. This is one of the flagship capabilities of eXpress that was originally conceived from the very beginning – back into the 1970’s actually, with LOGMOD.

Diagnostic Mark-up Language (Diag-ML)

The most widely used diagnostic export facility in eXpress is its Diagnostic Markup (DiagML) schema that can be used to export any eXpress-generated diagnostic sequencing in a push of a button!

Diagnostic Simulation with STAGE

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”.

FTA and Safety Analysis

The eXpress FTA Module automatically generates full-featured fault trees using data from an eXpress systems engineering model.

FMECA Analysis

The FMECA Plus capability in eXpress transcends customary disciplinary barriers, allowing engineers and analysts in different areas of design to integrate the results of their respective efforts.