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Articles by this Author
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Are You Ready for EDDIE, the Embedded Diagnostic and IVHM Demonstrator?
The Embedded Diagnostic Demonstrator and IVHM Executive (EDDIE) emulates the operational functionality and failure mechanisms of a real fuel system. The emulation includes valve and state switching, fuel level and flow rate monitoring, and component redundancy.
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Early Functional Analysis and Allocation in the System Engineering Process
All credible Testability and Diagnostic Analysis must be based upon an appropriate level of early functional analysis and allocation as identified in a system engineering process. Failure analysis data may be used . . .
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COTS - The Jagged Little Pill
COTS components, more often than not, lack the necessary diagnostic hooks, yet the systems integrator is ultimately accountable for any support deficiencies...
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Putting Sensors in their Place
When does adding sensors harm the system that it's supposed to be helping? Proper placement of sensors is essential, and yet it often takes on a life of its own at the expense of good design practice.
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Diagnostic Optimization of Large-Scale Systems
As system size increases, so increases the challenge of optimizing. Typically, the turn-around time for assessing engineering changes starts to become prohibitive. Avoiding a long turn-around is essential to ensuring early optimization.
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Trade Studies, Risk Management, Simulation, Oh My!
The beehive of activity in complex programs is incredible. The interactions between engineering scenarios and business cases alone represent some of the most difficult to perform. Trade studies, in one form or another, trigger these interactions and create the need to fully understand their impacts and risks to the effort.
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Ten Tips for Developing and Using Avionics Test Sets
Test and Measurement World, January 1, 2003.This article helps identify the gap and resulting need, for supporting A.T.E. testing solutions with a sound diagnostic approach.
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IVHM Design Using eXpress
The design of Integrated Vehicle Health Management has certainly received an increasing amount of attention, yet there are only a few elements that make it different than any other type of on-board diagnostic system. Ensuring that your approach is well-defined makes all the difference in achieving a successful implementation. Find out how eXpress plays into this equation.
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DSI congratulates Boeing on its receipt of one of this year's Baldrige Awards
The Malcolm Baldrige National Quality Award is annually presented by the President of the United States to organizations for achievements in quality and performance and to raise awareness about the importance of quality and performance excellence as a competitive edge. It is the highest recognition of quality excellence that a company can achieve.
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Cost Savings by Using a Tool that Supports Hybrid Modeling
eXpress is good at supporting the entire life cycle development, and is the only tool that takes a system level, multi-design discipline perspective to iteratively drive a design through the entire development cycle.
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Full Systems Diagnostics Design and Support Integration
DSI is currently developing simulation technology that can represent full operational scenarios, resolved into individual mission phases. The simulation can accurately predict expected time to first failure, the number of unique and total failures over a given period, the probability of a fault resulting in a loss of mission, loss of vehicle, or loss of crew, and other predictions that can be easily added using a built-in scripting language.
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Inter-Agency IVHM TIM Held in Huntsville
Through the conmbined efforts of NASA MSFC and DSI, the first TIM of Integrated Vehicle Health Management convened at NASA Marshall on July 23, 2003. This event was of historical proportions because it was the first TIM in which the participants openly discussed the principles and application of diagnostics, prognostics and the implementation of IVHM; and this same conference table was also utilized by Werner Von Braun during the planning of the United States' entry into the Space Age.
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New Documentation: Quick Start Guide and Online Help
With all the capabilities currently found in the eXpress tool, learning how to access and use these features could sometimes be a challenge. To help the user become more efficient in the shortest possible time, we at DSI have developed a Quick Start Guide.
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DSI's New Electronic Design Automation (EDA) Import Mode
Integrating your testability environment with the design-engineering environment allows for vital information to be exchanged, at a time in the development process when concurrent engineering has far reaching benefits. However, realizing a link between these two environments presents challenges that can often exceed most of the potential benefits.
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Optimizing Test Strategies with eXpress
The optimization of test stragies is a frequent, yet challenging, problem faced by Testability engineers. eXpress provides an elegant solution to the problem through several optimization capabilities.
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