DSI International Articles - News

Design for Testability - Origin and Evolution

DSI Staff — Wed, 25 Jun 2008 00:00:00 GMT

The concept of Design for Testability was originally pioneered by Ralph De Paul, Jr. in the mid 1960’s based on diagnostic ideas that he had first conceived during the 1950’s.

When Money Not Spent is Money Not Saved

DSI Staff — Thu, 22 Mar 2007 00:00:00 GMT

Although eXpress analyses can be used to assess the diagnostic capability of a fixed system design, eXpress really comes into its own when the results are used to improve a design’s diagnostic capability. Unlike spreadsheet-based approaches, eXpress has been specifically designed to facilitate both early and iterative analysis; in fact, it can be effectively employed throughout the product development cycle, beginning in the earliest phases of system design. The value of this early design feedback cannot be over-estimated.

Boundary Scan modeling in eXpress

DSI Staff — Wed, 21 Mar 2007 00:00:00 GMT

There are numerous ways in which Boundary Scan technology can be modeled in the eXpress Testability Analysis software tool. The technique described here makes use of a number of power features incorporated into the latest eXpress software to provide a fast, effective and adaptable means of modeling Boundary Scan technology, and can be easily incorporated into either new or existing model designs.

Real-Time Fault Isolation Reasoning Impact Technologies’ ReasonPro Integrated with DSI’s eXpress

DSI Staff — Wed, 21 Mar 2007 00:00:00 GMT

DSI International (DSI) and Impact Technologies (Impact) have teamed to provide a total systems solution for Prognostics Health Management (PHM). The integration of Diagnostics and Prognostics technology brings the solution together to meet the needs of the advanced PHM Programs. Understanding the requirements and providing a high confidence solution are key to the total program’s integration needs.

Independent Systems Engineering vs. Programmatic Systems Engineering

DSI Staff — Wed, 21 Mar 2007 00:00:00 GMT

The awarding of DoD Programs has continued to evolve over the recent decades toward a culture that exploits the concept of “Teaming” on the development of complex products or systems for many major programs. This concept appears to allow contractors to leverage each Team member’s particular strengths in their respective areas of expertise into a unified partnering environment. To facilitate this objective, the partnering environment must agree upon a mutual acceptable means and mechanism to integrate these individual products together into the developing of a superior end-product.

Selecting a Systems Diagnostic Engineering Tool

DSI Staff — Tue, 13 Jun 2006 00:00:00 GMT

When tasked with selecting a Systems Diagnostic Engineering Tool, one important consideration is the reduction of the business risk associated with using that tool—something that can only be assessed if one understands not only the various calculations performed by the tool, but also the more basic question of how well the tool meets the overall needs of the systems engineering process. As alternative and/or complimentary tools are identified, the analyst must consider how the strengths of each tool might be leveraged without compromising the primary objectives of the systems diagnostic design.

eXpress 5.10

DSI Admin — Wed, 26 Oct 2005 00:00:00 GMT

DSI International formally released its latest release of eXpress, version 5.10. This highly anticipated version of eXpress brings some remarkable innovations including making the modeling process simpler, but also allowing many interchangeability of data with EXCEL and the new “Grid View” feature! Other new features and productivity enhancements are as follows:

Systems Diagnostics and eXpress Training at Alabama

DSI Staff — Thu, 14 Apr 2005 00:00:00 GMT

This past January was not only the beginning of a new semester at Alabama A&M. it also marked the first time that DSI officially held a certified Systems Diagnostics and eXpress training course in a University campus laboratory.
Under the sponsorship of Alabama A&M University and Dr. Andrew Scott, (also attended by Dr. Alvernon Walker of North Carolina A&T), DSI International conducted the first three Systems Diagnostic courses using the University's eXpress Software. DSI instructors, Mr. Jim Lauffer and Mr. Eric
Gould, successfully presented detailed information and examples using eXpress as a Systems engineering process and Diagnostic development / Prognostic data gathering tool.

Pervasive Prognostics Computing

DSI Staff — Wed, 24 Nov 2004 00:00:00 GMT

Prognostics will ultimately require both the existing and emerging technologies behind pervasive computing in order to satisfy its own computing needs. More surprising, though, is the degree to which developments in both prognostics and pervasive computing are mutually beneficial.

A Prognostics Sensor Victory on the Joint Strike Fighter (JSF)

DSI Staff — Fri, 19 Nov 2004 00:00:00 GMT

The JSF Prognostics team has once again won a small victory for aircraft sensors, this time by proving there will be a huge maintenance cost-savings, rather than any impact on safety.