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IEEE International Conference on computer Design: VLSI in computers and Processors, (ICCD)

作者： A. von Mayrhauser R. Mraz J. Walls P. Ocken Department of Computer Science Colorado State University USA Advanced Systems Division Hewlett Packard Company Software Engineering Group Storage Technology Corporation

Domain based testing (DBT) is a test generation method based on two concepts from software reuse, domain analysis and domain modeling. We applied DBT to command-based systems where the domain model represents the syntax and semantics of the command language. The domain model drives the generation of test cases. The test generation process consists of three stages: scripting; command template generation; and parameter value selection. Because it is based on ideas from software reuse, DBT also provides a good structure for test case reuse. Production use of the DBT tool Sleuth to generate system tests for an automated robot tape library confirms that DBT provides a wide variety of test case reuse scenarios.< >

关键词： computer aided software engineering System testing Command languages Automatic testing software testing computer science Production systems Logic testing Robotics and automation software libraries

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software technology risk advisor

Software technology risk advisor

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Knowledge-Based software engineering Conference

作者： G.A. Toth USC Center For Software Engineering Department of Computer Science University of Southern California Los Angeles CA USA Electronics Systems Division Northrop Grumman Corporation Hawthorne CA USA

This paper describes the software Technology Risk Advisor (STRA), a knowledge-based software engineering tool that provides assistance in identifying and managing software technology risks. The STRA contains a knowledge base of software product and process needs, satisfying capabilities and capability maturity factors. After a user ranks the importance of relevant needs to his or her project, the STRA automatically infers risk areas by evaluating disparities between project needs and technology maturities. Identified risks are quantitatively prioritized and the user is given risk reduction advice and rationale for each conclusion. This paper presents methods used in the STRA, along with discussions of knowledge acquisition experimental results, current status, and related work.< >

关键词： Risk management software tools software engineering Knowledge management Programming Technology management Expert systems Application software computer science engineering management

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A FAST HEURISTIC FOR LOOP PARALLELIZATION

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Parallel Processing Letters 1994年第3期4卷 281-299页

作者： RICHARD J. ANDERSON BARBARA B. SIMONS Department of Computer Science and Engineering University of Washington USA This work supported by NSF Presidential Young Investigator Award CCR-86-57562 and NSF/Darpa grant CCR-8907960. Applications Development Technology Institute IBM Software Solutions Division M24/E254 555 Bailey Road San Jose CA 95141 USA

We present a fast loop parallelization heuristic that assigns separate invocations of a loop to different processors. If the loop contains data dependences between iterations, later iterations can be delayed while awaiting a result computed in an earlier iteration. In this paper we study a scheduling problem, called the Delay Problem, that approximates the problem of minimizing the delay in the start time of loops with loop-carried dependences. Our major result is a fast (O(n log 2 n)) time algorithm for the case where the precedence constraints are a forest of in-trees or a forest of out-trees. Since most graphs for the Delay Problem that arise in practice are sparse and consist of such a forest with possibly a few additional edges, this is an important case. We prove that the Delay Problem becomes NP-Complete when the precedence constraints are a set of arbitrary trees. We also prove that the Delay Problem becomes NP-Complete for independent chains when it is generalized to allow either non-unit execution times or release times and deadlines.

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Comparing human and machine performance for natural language information extraction: Results for english microelectronics from the MUC-5 evaluation 5

Comparing human and machine performance for natural language...

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5th Message Understanding Conference, MUC 1993

作者： Will, Craig A. Institute for Defense Analyses Computer and Software Engineering Division 1801 N. Beauregard Street AlexandriaVA22311 United States

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Educational use of a microwave electromagnetic analysis of 3-D planar structures

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computer Applications in engineering Education 1993年第3期1卷 243-243页

作者： Rautio, J.C. Sonnet Software Inc. Suite 203 135 Old Cove Road Liverpool NY 13090 Dr. James C. Rautio:founded Sonnet Software a developer of 3-D planar electromagnetic microwave software in 1983 with support from the David Sarnoff Research Center Hewlett Packard General Electric and Syracuse University. He has served as a visiting member of the faculty at Syracuse University and as an adjunct faculty member at Cornell University teaching microwave and computer courses as well as pursuing research in electromagnetics. Dr. Rautio previously worked in General Electric's Space Division and Electronics Laboratory. He designed microwave circuits including filters for a Landsat receiver and various GaAs microwave integrated circuits. He also developed microwave and millimeter wave automated measurement equipment and wrote a large microwave circuit analysis program. Dr. Rautio holds a BS in Electrical Engineering from Cornell University an MS in Systems Engineering from the University of Pennsylvania and a PhD in Electrical Engineering from Syracuse University

The use of an electromagnetic analysis of 3-D planar structures is described with respect to the educational requirements of students from the college freshman level through the graduate level. The analysis is intended primarily for microwave use; however, there is also significant potential interest from the student of high speed digital design. The analysis is used for passive planar circuits with any number of layers. The third dimension is represented by vias. A mature graphical user interface is provided allowing rapid capture of structure geometry, color visualization, and animation of the resulting current distributions. The software is also explicitly designed to work in conjunction with popular circuit theory based microwave software and with SPICE.

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SHIPBOARD DAMAGED STABILITY ASSESSMENT - THE FLOODING CASUALTY CONTROL software

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NAVAL ENGINEERS JOURNAL 1993年第3期105卷 152-166页

作者： ZAHN, PB ROSBOROUGH, J CARLSTROM, R Peter B. Zahn:is a section chief in the Naval Architecture Department at Advanced Marine Enterprises. He is responsible for software development and special trials support. He has led the Flooding Casualty Control Software (FCCS) development effort since joining AME in 1989. He is also responsible for the material handling strikedown and stowage (MHS&S) software development program as well as special trials support for the ACVLAP and T-AGOS 19 programs. Prior to joining AME Mr. Zahn spent nine years with various companies of the ARCTEC Group. His experience includes field trials in venues from the Caribbean to the Bering Sea as well as model tests and engineering design and development efforts. Mr. Zahn received his B.S. in naval architecture and marine engineering from Webb Institute in 1980 and has published various papers on pollution prevention offshore systems and icebreaker design and performance. He is a member of ASNE and SNAME. John Rosborough:has been a naval architect for the Naval Sea Systems Command (NavSea) for the past 15 years. He is currently assigned to the Hydrodynamics Division with responsibility for aircraft carrier stability evaluations and as a task leader for computer-aided ship design development. In the Stability Division he was previously responsible for stability analyses on various amphibious ships SWATHs and foreign ships. He manages the upgrade and augmentation of SHCP at NavSea and is the Navy's technical point of contact for evaluating shipboard stability software and transitioning technology to the fleet. Mr. Rosborough received his B.S. in naval architecture and marine engineering from the University of Michigan in 1977. He is a member of USNI and the Association of Scientists and Engineers at NavSea. Richard Carlstrom:is a naval architect with Advanced Marine Enterprises. He has been responsible for software development in support of a variety of major programs including FCCS and SHCP and is a specialist in stability evaluations for complex ships such as CVs CVNs

The Flooding Casualty Control software (FCCS) was developed under the auspices of the Naval Sea Systems Command (NavSea) and is currently being deployed on a variety of ships in the neets of both the U.S. Navy and the U.S. Coast Guard. The primary objective of FCCS is to enable damage control personnel to identify critical stability conditions, especially when related to the loss of reserve buoyancy due to battle damage and the destabilizing effects of large quantities of firefighting water, in a timely manner. FCCS was initially deploved in 1990. It utilizes the standard algorithms of the Ship Hull Characteristics Program (SHCP). The user interface was designed to allow quick familiarity for shipboard users, primarily the damage control assistant (DCA) and his staff. Intact stability evaluations include the effects of topside icing, high winds, personnel crowding, heavy lifts over the side, high speed turns, and towing. FCCS also supports ballasting analysis for amphibious ships as well as providing bottom reaction and beached stability data for grounding incidents. Bv providing a tool for the ''fuel king'' and DCA to generate the required daily updates on the current ship load and liquids status, FCCS is assured of an accurate baseline in the event of damage. The design allows the evaluation of the ultimate ship stability status for a damage event using simple compartmentation and flooding status inputs. Evaluation of the adequacy of resulting stabilitv, as well as identification of such critical stability parameters as off center loading, margin line immersion, and negative GM, are accomplished by the program. Guidance is provided for the user to initiate appropriate flooding related damage control activities. Initially fitted on USS Oliver Hazard Perry Class frigates, FCCS databases have been for the USCG Hamilton class high endurance cutters, USS Arleigh Burke class Aegis destroyers, and a variety of other U.S. Navy and U.S. Coast Guard ship classes. The progra

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UTILIZING RESERVE ASSETS - MUTUAL SUPPORT AT SUPSHIP BATH

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NAVAL ENGINEERS JOURNAL 1993年第6期105卷 39-42页

作者： GOLDA, EM PORPORA, GA Cdr. Eugene Michael Golda:is a Naval Reserve engineering duty officer and is commanding officer of NR NavSea PMS Det 302. He has developed and directed mutual support programs assisting the Supervisor of Shipbuilding Brooklyn and has participated in the training and mutual support programs at the Supervisor of Shipbuilding Bath. He received a Ph.D. and M.S. in materials science and engineering from Stevens Institute of Technology Hoboken N.J. A 1977 graduate of the United States Naval Academy Cdr. Golda has been a member of ASNE since 1974. Cdr. Golda is a materials engineer at the Annapolis Detachment Carderock Division Naval Surface Warfare Center working on naval applications of superconducting technology. LCdr. Gregory A. Porpora:is an IBM market support representative who provides technical consulting support in application development with computer aided software engineering (CASE) tools. Prior to joining IBM he was a senior design engineer for a defense contractor involved in design and development of radar and ASW systems including the AN/BSY-1 combat system trainer. LCdr. Porpora is a member of IEEE the Naval Institute and the Naval Reserve Association. He holds a BSEE and MSEE from the Polytechnic Institute of Technology New York. LCdr. Porpora is currently assigned to NR SupShip Det 502 which provides extensive mutual support for the Supervisor of Shipbuilding Bath and the resident office in Brooklyn New York.

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EMI - THE ENEMY WITHIN

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NAVAL ENGINEERS JOURNAL 1992年第2期104卷 69-80页

作者： BARON, NT CEBULSKI, DR Neil T. Baronis currently the team leader for the combat system topside design work for amphibious assault auxiliary mine warfare and Coast Guard ships. He sits on the IEEE SCC-28 Committee for personnel radiation hazards and is extensively involved in the EM engineering initiative at NavSea. Mr. Baron has lectured at the MIT Summer Professional Series on the subject of electromagnetic interference. While attending Marquette University he started his career with the Navy as a coop student supporting personnel radiation hazard assessments. After graduating with a BS in bio-medical engineering he took an electronics engineer position in the Systems Electromagnetic Division. Since then he has lectured on Navy training films and has developed several software packages which have pushed the state-of-the-art in EMI assessment. Mr. Baron has prepared several reports and professional papers. He has worked on several professional committees and in February of 1991 was awarded the “Young Engineer of the Year Award” which was presented by the D.C. Council of Engineering and Architectural Societies. Donald R. Cebulskiis currently the head of the Topside Design Division in the Naval Sea Systems Command Weapons and Combat System Directorate. He graduated from the University of Michigan with a bachelor's degree in 1963 and a master's degree in 1977 both in naval architecture and marine engineering. He started his career in 1964 at the Bureau of Ships and joined the Aircraft Carrier Section of the Arrangements Branch in Hull Design. During the past 25 years he has included almost every naval ship type in his ship arrangement experience and in October of 1988 he transferred to the Topside Design and Integration Branch in the System Electromagnetics Division Sea 06. Mr. Cebulski has written several papers on ship arrangements computer aided design and ship topside design. He prepared and presented lectures at the MIT Professional Series on ship topside design and has served on many ASNE committees. He is currently the

Electromagnetic interference (EMI) is one of the major contributors to mission degradation in our fleet today due to the increase in population and sensitivity of both topside and below deck electronic systems. Sensitive combat systems designed to counter intelligent and deceptive targets can be confused by the complex intra-ship EM environment. This can cause identification failure or losing "track" of a hostile or incoming missile or even engaging "friendly targets." Topside design and integration efforts have been used to reduce EMI, but this is not the total solution to the problem. A program of total ship and system EMI assessment and control must be implemented. This program must exploit electromagnetic compatibility (EMC) optimization in electronic circuit design and take advantage of and (in some cases) direct topside shapes and structures to control the propagation of desired and undesired EM energy. Positive and active control of EM design characteristics are absolutely required before optimum combat system effectiveness can be realized. This paper will describe the current topside design process, EMC improvements being made, and how the process is being integrated into, and is dependent upon, the ship design process. It will give examples of some of the major mission degrading EMI problems in the fleet today and how past problems were solved with existing EM analysis programs. It will also discuss the control of EM energy in new design through the use of techniques being developed such as ray tracing and ray casting. The paper projects where the challenges lie for future topside and EM engineering designers and describes how the equipment technology transfer process must be better integrated to meet the challenge of effective EMI control.

关键词： Signal Interference

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OUT OF THE LAB AND INTO THE FIELD - SYSTEM-DESIGN OF LARGE EXPERT SYSTEMS

OUT OF THE LAB AND INTO THE FIELD - SYSTEM-DESIGN OF LARGE E...

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INTERNATIONAL CONF ON DEVELOPING AND MANAGING EXPERT SYSTEM PROGRAMS

作者： GARRETT, R Computer and Software Engineering Division Institute for Defense Analyses 1801 N.Beauregard St. Alexandria 22311 VA United States

ISBN: (纸本)0818622504

Traditional software engineering is crucial to the successful development and deployment of a large expert system. In this respect, large expert systems are shown to have many similarities with other large software systems. The advanced computing concepts, rapid prototyping approach, and general research and development aspects of expert systems have sometimes led to the neglect of fundamental principles of software engineering. These principles are creating and maintaining interfaces between program modules, the use of specification languages, automatic code generation, long-term maintenance, and the use of commercial products. A large-scale expert system currently in advanced development is used as an example. © 1991 IEEE.

关键词： Expert systems

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Out of the lab into the field: system design of large expert systems

Out of the lab into the field: system design of large expert...

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Proceedings of the IEEE/ACM International Conference on Developing and Managing Expert System Programs

作者： R. Garrett Computer and Software Engineering Division Institute for Defense AnaIyses Alexandria VA USA

Traditional software engineering is crucial to the successful development of a large expert system. In this respect, large expert systems are shown to have many similarities with other large software systems. The advanced computing concepts, rapid prototyping approach, and general research and development aspects of expert systems have sometimes led to the neglect of fundamental principles of software engineering. These principles are creating and maintaining interfaces between program modules, the use of specification languages, automatic code generation, long-term maintenance, and the use of commercial products. A large-scale expert system currently in advanced development is used as an example.< >

关键词： Expert systems software engineering Prototypes Design engineering software prototyping Research and development Large-scale systems Government Workstations Testing

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