DOCSLIB.ORG

Development of a Reference Dataset to Evaluate PEMS Post-Processing Software" (2015)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Development of a Reference Dataset to Evaluate PEMS Post-Processing Software Graduate Theses, Dissertations, and Problem Reports 2015 Development of a Reference Dataset to Evaluate PEMS Post- Processing Software Hemanth K. Kappanna Follow this and additional works at: https://researchrepository.wvu.edu/etd Recommended Citation Kappanna, Hemanth K., "Development of a Reference Dataset to Evaluate PEMS Post-Processing Software" (2015). Graduate Theses, Dissertations, and Problem Reports. 5933. https://researchrepository.wvu.edu/etd/5933 This Dissertation is protected by copyright and/or related rights. It has been brought to you by the The Research Repository @ WVU with permission from the rights-holder(s). You are free to use this Dissertation in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you must obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Dissertation has been accepted for inclusion in WVU Graduate Theses, Dissertations, and Problem Reports collection by an authorized administrator of The Research Repository @ WVU. For more information, please contact [email protected]. Development of a Reference Dataset to Evaluate PEMS Post- Processing Software Hemanth K. Kappanna Dissertation submitted to the Statler College of Engineering and Mineral Resources at West Virginia University in partial fulfillment of the requirements for the degree of Doctor of Philosophy In Mechanical Engineering Committee Members Mridul Gautam, Ph.D., Chair Gregory. J. Thompson, Ph.D. Hailin Li, Ph.D. Feng Yang, Ph.D. Benjamin C. Shade, Ph.D. Department of Mechanical and Aerospace Engineering Morgantown, West Virginia May 2015 Keywords: In-Use Emissions Regulations, Emissions Calculation, Reference Dataset, Robustness Testing of Software Copyright 2015 Hemanth K. Kappanna Development of a Reference Dataset to Evaluate PEMS Post-Processing Software Hemanth K. Kappanna Abstract Since the implementation of in-use emissions standards, an outcome of the consent decree between heavy-duty diesel engine manufacturers and the Environmental Protection Agency (EPA), there has been an increased interest in the research and development of portable emissions measurement systems (PEMS) that are capable of analyzing exhaust emissions continuously while a vehicle or equipment powered by an internal combustion engine is performing its intended vocation. Ultimately for an engine to pass in-use emissions requirements, the brake specific emissions of regulated pollutants measured over valid Not-to-Exceed (NTE) events must be less than or equal to 1.25 or 1.5 times the engine emission certification standards, based on the engine model year (MY), plus an additional margin known as in-use measurement allowance. The vehicle has to satisfy the in-use emissions standard for 90% of the NTE events provided the brake specific emissions over the rest of the events are less than two times the certification level to comply with in-use emission regulations. As in-use emissions measurement and regulation together form a requirement since 2004 for certification of engines, it is imperative to develop procedures of oversight similar to ones that exist for laboratory-based engine certification. Therefore, a reference data set that incorporates all the in-use emissions regulations used to quantify the measured emissions over an NTE event, including the conditions used to validate an NTE event is developed in the direction of providing a means to validate commercial PEMS data analysis software. A reference data set was designed and used to evaluate the post-processing software of two commercial PEMS devices. A black box testing methodology was implemented to evaluate the performance of the post-processing software. Specifically, the input data set was developed to execute different sections of the program based on logical conditions required to branch into a particular section therefore verifying the truth in executing a logical condition and the interpretation of in-use emissions regulation. Also, the brake specific emissions results to be expected from the given input data set were known a priori to verify the accuracy of the equations used in calculating the final emissions results. The dataset was also used to evaluate PEMS data post-processing software developed at WVU. The test results indicated that definition of NTE emissions performance was not in agreement for the post-processing software evaluated. Being that compliance is required for manufacturers to sell engines without penalty, it is critical that the metric by which compliance is assessed must be accurate and robust. As such, the reference data set developed will serve in identifying interpretation errors of in- use emissions regulations as well as calculation error and reduce the chances of triggering false positives and negatives that could prove costly to engine manufacturers as well as air quality regulating agencies. This reference data set will also serve in effective implementation of any modification of existing or additional new in-use emissions compliance requirements and verify it across different in-use emissions data post-processing software supplied by PEMS manufacturers and developed in-house. Test results showed that PEMS post-processors outcome were not in agreement with expected total number of 166 NTE events as the in-house, PEMS A and PEMS B returned 216, 288 and 190 NTE events respectively. The reference dataset was instrumental in identifying interpretation error in the in-house data post- processor leading to a revised version of the software that matched the expected results. This dissertation is dedicated to my teachers and my brother Ravi K. Kappanna. iv ACKNOWLEDGEMENTS I am greatly indebted to Dr. Mridul Gautam, for his valuable advice and the opportunities I was afforded during the course of this education, and through which I was able to fulfill my brother and parents wish. Thanks are due for my committee for challenging the proposal and the final thesis to make this work worthy enough for a PhD. I would like to thank Dan Carder for believing in me and making sure I do not give up on my goals through most challenging times. A very special thanks to my best friend Marc Besch who made sure that I am not left alone from beginning of qualifiers, which was the most memorable moments of this course, till the submission of final dissertation by motivating and supporting throughout this journey. I would like to thank Arvind Thiruvengadam for being that familiar face when I returned to pursue PhD, and for the countless wings night all around Morgantown. I would like to thank Ben Shade for making me feel I am funny with his endless jokes on me, if he ever takes up being comedian as a career I would volunteer to be his prop. Thanks are due for John Revercomb for proofing this document and being kind enough to praise it. I want to thank Peter Bonsack for introducing me to tasting wine and being a great company over cheese and wine. I would like to thank my office mates Jiang Lei, and Ms. Li for being a great company and appreciate for inviting me over hot pot dinners. I would like to thank all CAFEE graduates and students for being great friends, without you guys graduate education would have been boring. I am thankful to my parents for providing unwavering support to pursue my education and wishing me success in all my endeavors. I look up to them for being a great example in facing the most challenging situations in life. Time and again my sister Hemalatha has provided me greatest support emotionally by listening to me so far and this was made possible partly by my cousin Rathnamma who gave my sister a second lease of life by being a live kidney donor. I am constantly challenged by these stalwarts of life and I strive to follow in their path. I would like to thank my brother-in-law Dr. Suresh for understanding my needs and treating me like his own brother. I am thankful to my loving nieces Bhavana and Bhanavee for sharing their mom’s precious time with me. I would like to thank Arathy Narasegowda, for sharing better part of my graduate studies and teasing the best out of me. In the end all these experiences have led me to practice of Yoga which I treasure the most and set a lifetime goal to follow Ashtanga, the eight limbs of Yoga. v Table of Contents Abstract ......................................................................................................................................................... ii ACKNOWLEDGEMENTS ......................................................................................................................... iv Table of Contents .......................................................................................................................................... v List of Figures .............................................................................................................................................. xi List of Tables ............................................................................................................................................. xiii List of Acronyms ........................................................................................................................................ xv 1 INTRODUCTION .................................................................................................................................. 1 1.1 Background .....................................................................................................................................
Load more

Recommended publications
  • Reit) Hydrology \-Th,C),^:::Th
    Icru j Institute of 'reit) Hydrology \-Th,c),^:::Th Natural Environment Research Council Environment Research A CouncilNatural • • • • • • • • • SADC-HYCOS • HYDATAv4.0trainingcourse • PRCPretoria,SouthAfrica 28July-6August1998 • • • • • • • • • • Institute of Hydrology Maclean Building Crowmarsh Gifford Wallingford Oxon OXIO 81313 • Tel: 01491 838800 Fax: 01491 692424 • Telex: 849365 HYDROL, G September 1998 • • •••••••••••••••••••••••••••••••••• Summary 111 A key stage in the implementation of the SADC-HYCOS projcct involves establishing a regional database system. Thc database selected was the Institute of Hydrology's HYDATA system. HYDATA is uscd in more than 50 countries worldwide, and is the national database system for surface water data in more than 20 countries, including many of the SADC countries. A ncw Windows version of HYDATA (v4.0) is near release (scheduled January 1999), and provides several improvements over the original DOS-bascd system. It was agreed that HYDATA v4.0 would be provided to each National Hydrological Agency for the SADC- HYCOS project, and that a 2-week training course would be held in Pretoria, South Africa. The first HYDATA v4.0 training course was held at the DWAF training centre in Pretoria between 28 July and 6 August 1998. The course was attended by 16 delegates from 1 I different countries. This report provides a record of the course and the software and training provided. •••••••••••••••••••••••••••••••••• Contents • Page • 1. INTRODUCTION 1 • 1.1Background to SADC-HYCOS 1.2 Background to HYDATA 1.3Background to course 2 2 THE HYDATA TRAINING COURSE 3 • 2.1The HYDATA v4.0 training course 3 • 2.2Visit to DWAF offices 4 • 3. CONCLUSIONS AND FUTURE PLANS 5 • APPENDIX A:RECEIPTS FOR HYDATA v4.0 SOFTWARE 6 • APPENDIX B:PROGRAMME OF VISIT 7 • APPENDIX C:LIST OF TRAINING COURSE PARTICIPANTS 9 • APPENDIX D:LIST OF SOFTWARE BUGS 10 ••••••••••••0-••••••••••••••••••••• • • 1.
    [Show full text]
  • An In-Depth Study with All Rust Cves
    Memory-Safety Challenge Considered Solved? An In-Depth Study with All Rust CVEs HUI XU, School of Computer Science, Fudan University ZHUANGBIN CHEN, Dept. of CSE, The Chinese University of Hong Kong MINGSHEN SUN, Baidu Security YANGFAN ZHOU, School of Computer Science, Fudan University MICHAEL R. LYU, Dept. of CSE, The Chinese University of Hong Kong Rust is an emerging programing language that aims at preventing memory-safety bugs without sacrificing much efficiency. The claimed property is very attractive to developers, and many projects start usingthe language. However, can Rust achieve the memory-safety promise? This paper studies the question by surveying 186 real-world bug reports collected from several origins which contain all existing Rust CVEs (common vulnerability and exposures) of memory-safety issues by 2020-12-31. We manually analyze each bug and extract their culprit patterns. Our analysis result shows that Rust can keep its promise that all memory-safety bugs require unsafe code, and many memory-safety bugs in our dataset are mild soundness issues that only leave a possibility to write memory-safety bugs without unsafe code. Furthermore, we summarize three typical categories of memory-safety bugs, including automatic memory reclaim, unsound function, and unsound generic or trait. While automatic memory claim bugs are related to the side effect of Rust newly-adopted ownership-based resource management scheme, unsound function reveals the essential challenge of Rust development for avoiding unsound code, and unsound generic or trait intensifies the risk of introducing unsoundness. Based on these findings, we propose two promising directions towards improving the security of Rust development, including several best practices of using specific APIs and methods to detect particular bugs involving unsafe code.
    [Show full text]
  • University of California Santa Cruz Learning from Games
    UNIVERSITY OF CALIFORNIA SANTA CRUZ LEARNING FROM GAMES FOR GENERATIVE PURPOSES A dissertation submitted in partial satisfaction of the requirements for the degree of DOCTOR OF PHILOSOPHY in COMPUTER SCIENCE by Adam J. Summerville June 2018 The Dissertation of Adam J. Summerville is approved: Professor Michael Mateas, Chair Professor Noah Wardrip-Fruin Professor Santiago Ontañón Dean Tyrus Miller Vice Provost and Dean of Graduate Studies Copyright © by Adam J. Summerville 2018 Table of Contents List of Figures vi List of Tables xiv Abstract xvi Dedication xvii Acknowledgments xviii 1 Introduction 1 1.1 Research Contributions ........................... 5 I Learning From Game 7 2 How Humans Understand Games 8 2.1 Human Annotation Tasks .......................... 17 2.2 Entity Persistence .............................. 17 2.3 Camera Motion ................................ 18 2.4 Room Detection ............................... 21 2.4.1 Teleportation ............................. 23 2.4.2 Traversal ............................... 25 2.5 Animation Cycles ............................... 32 2.6 Mode Dynamics ................................ 34 2.7 Conclusion .................................. 36 3 Mappy – A System for Map Extraction and Annotation via Observa- tion 37 3.1 NES Architecture and Emulation ...................... 41 3.2 Operationalizing Entity Persistence ..................... 43 3.3 Inferring Camera Motion .......................... 49 iii 3.4 Determining Room Transitions ....................... 59 3.4.1 Automatic Mapping ........................
    [Show full text]
  • Managing Software Development – the Hidden Risk * Dr
    Managing Software Development – The Hidden Risk * Dr. Steve Jolly Sensing & Exploration Systems Lockheed Martin Space Systems Company *Based largely on the work: “Is Software Broken?” by Steve Jolly, NASA ASK Magazine, Spring 2009; and the IEEE Fourth International Conference of System of Systems Engineering as “System of Systems in Space 1 Exploration: Is Software Broken?”, Steve Jolly, Albuquerque, New Mexico June 1, 2009 Brief history of spacecraft development • Example of the Mars Exploration Program – Danger – Real-time embedded systems challenge – Fault protection 2 Robotic Mars Exploration 2011 Mars Exploration Program Search: Search: Search: Determine: Characterize: Determine: Aqueous Subsurface Evidence for water Global Extent Subsurface Bio Potential Minerals Ice Found Found of Habitable Ice of Site 3 Found Environments Found In Work Image Credits: NASA/JPL Mars: Easy to Become Infamous … 1. [Unnamed], USSR, 10/10/60, Mars flyby, did not reach Earth orbit 2. [Unnamed], USSR, 10/14/60, Mars flyby, did not reach Earth orbit 3. [Unnamed], USSR, 10/24/62, Mars flyby, achieved Earth orbit only 4. Mars 1, USSR, 11/1/62, Mars flyby, radio failed 5. [Unnamed], USSR, 11/4/62, Mars flyby, achieved Earth orbit only 6. Mariner 3, U.S., 11/5/64, Mars flyby, shroud failed to jettison 7. Mariner 4, U.S. 11/28/64, first successful Mars flyby 7/14/65 8. Zond 2, USSR, 11/30/64, Mars flyby, passed Mars radio failed, no data 9. Mariner 6, U.S., 2/24/69, Mars flyby 7/31/69, returned 75 photos 10. Mariner 7, U.S., 3/27/69, Mars flyby 8/5/69, returned 126 photos 11.
    [Show full text]
  • CSE 501 Principles and Applications of Program Analysis
    CSE 501 ! Principles and Applications! of Program Analysis! " Alvin Cheung" Spring 15" Welcome to CSE 501!" The Cast" App–4 A. Cheung et al. Q, D, σ, h , e Q0, D0, σ, h0 ,(σ0, e ) h i i !h i i Q0, D0, σ, h0 , e Q00, D00, σ, h00 ,(σ00, e ) h i a !h i a force(Q00, D00,(σ0, e )) Q000, D000, v J K i ! i force(Q000, D000,(σ00, ea)) Q0000, D0000, va J K ! [Array deference] Q, D, σ, h , e [e ] Q0000, D0000, σ, h00 , h00[v , v ] h i a i !h i a i J K Q, D, σ, h , e Q0, D0, σ, h0 ,(σ0, e) Q000 = Q00[id (v, )] h i !h i ! ; force(Q0, D0,(σ0, e)) Q00, D00, v id is a fresh identifier ! [Read query] J Q, DK, σ, h , R(e) Q000, D00, σ, h0 , ([ ], id) h i !h i Semantics ofJ statements: K [Skip] Q, D, σ, h , skip Q, D, σ, h h i !h i J K Q, D, σ, h , e Q0, D0, σ, h0 ,(σ0, e) h i !h i Q0, D0, σ, h0 , el Q00, D00, σ, h00 , vl h i !h i [Assignment] Q, D, σ,Jh , e := e KQ00, D00, σ[v (σ0, e)], h00 h i l !h l ! i J K J K Q, D, σ, h , e Q0, D0, σ, h0 ,(σ0, e) h i !h i force(Q0, D0,(σ0, e)) Q00, D00, True ! J Q00, D00, σ, h0 K, s1 Q000, D00, σ0, h00 h i !h i [Conditional–true] Q, D, σ, h , if(e) then s else s Q000, D000, σ0, h00 h i 1 2 !h i J K J K Q, D, σ, h , e Q0, D0, σ, h0 ,(σ0, e) h i !h i force(Q0, D0,(σ0, e)) Q00, D00, False ! Q00, D00, σ, h0 , s2 Q000, D00, σ0, h00 Jh iK !h i [Conditional–false] Q, D, σ, h , if(e) then s1 else s2 Q000, D000, σ0, h00 h J i K !h i J K Q, D, σ, h , s Q0, D0, σ0, h0 h i !h i [Loop] Q, D, σ, h , while(True) do s Q0, D0, σ0, h0 h i !h i Instructor" J K J K Q, D, σ, h , e Q0, D0, σ, h0 ,(σ0, e) h i !h i force(Q0, D0,(σ0, e)) Q00, D00, v ! update(D00, v) D000 J K ! D000[Q00[id].s] if Q00[id].rs = Alvin Cheung" id Q00 .
    [Show full text]
  • Ame Development from Nintendo 8-Bit to Wii
    Bachelor report in Computer Science Blekinge institute of technology, 2009 EXAMINATION CANDIDATE COMPUTER SCIENSE Game Development from Nintendo 8-bit to Wii An analysis of Super Mario Bros. 1985 to 2009 Sophie Forsell 2009-08-14 This is a report of the game development of Super Mario Bros. from 1985 to 2009. It describes the differences in the games; Story, game flow, hardware, software development and graphics Game Development from Nintendo 8-bit to Wii A report of Super Mario Bros. 1985 to 2009 Contact information: Author: Sophie Forsell E-mail: [email protected] Supervisor: Jeanette Eriksson E-mail: [email protected] Program: Game Programing Blekinge Tekniska Högskola Phone: +46 457 38 50 00 SE - 372 25 RONNEBY Fax: +46 457 279 14 2 Game Development from Nintendo 8-bit to Wii A report of Super Mario Bros. 1985 to 2009 ABSTRACT “The game begins the moment a person touches a console -- everything builds from that.” (Quote by Shiguru Miyamoto; founder of Super Mario) This report contains a well-structured analysis of the main four Super Mario games that clearly states a difference in story, hardware, software development and design. The report is structured in sections for each game to better understand the concept of the Super Mario games. The report ends with comparisons of the games for a better view of the paradigm between them. The pictures and quotations in this report are referenced to the company that has copy write and Shiguru Miyamoto that is the founder of the character Super Mario. 3 Game Development from Nintendo 8-bit to Wii A report of Super Mario Bros.
    [Show full text]
  • Pristup Agregaciji Mrežnih Veza U Operativnom Sistemu Sa Mikrojezgrom
    UNIVERZITET U NOVOM SADU FAKULTET TEHNIČKIH NAUKA NOVI SAD Kandidat: Lazar Stričević Pristup agregaciji mrežnih veza u operativnom sistemu sa mikrojezgrom doktorska disertacija Mentor: dr Miroslav Hajduković Novi Sad 2016 УНИВЕРЗИТЕТ У НОВОМ САДУ ФАКУЛТЕТ ТЕХНИЧКИХ НАУКА 21000 НОВИ САД, Трг Доситеја Обрадовића 6 КЉУЧНА ДОКУМЕНТАЦИЈСКА ИНФОРМАЦИЈА Редни број, РБР: Идентификациони број, ИБР: Тип документације, ТД: Монографска публикација Тип записа, ТЗ: Текстуални штампани документ/ЦД Врста рада, ВР: Докторска дисертација Аутор, АУ: Лазар Стричевић Ментор, МН: др Мирослав Хајдуковић, редовни професор Наслов рада, НР: Приступ агрегацији мрежних веза у оперативном систему са микројезгром Језик публикације, ЈП: српски (латиница) Језик извода, ЈИ: српски/енглески Земља публиковања, ЗП: Србија Уже географско подручје, УГП: Војводина Година, ГО: 2016. Издавач, ИЗ: Ауторски репринт Место и адреса, МА: Факултет техничких наука (ФТН), Д. Обрадовића 6, 21000 Нови Сад Физички опис рада, ФО: 7/90/107/0/27/0/2 (поглавља/страна/ цитата/табела/слика/графика/прилога) Научна област, НО: Електротехничко и рачунарско инжењерство Научна дисциплина, НД: Примењене рачунарске науке и информатика Предметна одредница/Кључне речи, ПО: агрегација мрежних веза, микројезгро, толеранција поремећаја, ослоњивост, поузданост, доступност, рачунарске мреже УДК Чува се, ЧУ: Библиотека ФТН, Д. Обрадовића 6, 21000 Нови Сад Важна напомена, ВН: Извод, ИЗ: Теза се бави повећањем укупне ослонљивости модуларног микрокернел оперативног систем MINIX 3 кроз повећање поузданости његовог
    [Show full text]
  • Formal Methods: from Academia to Industrial Practice a Travel Guide
    Formal Methods: From Academia to Industrial Practice A Travel Guide Marieke Huisman Department of Computer Science (FMT), UT, P.O. Box 217, 7500 AE Enschede, The Netherlands Dilian Gurov KTH Royal Institute of Technology, Lindstedtsvägen 3, SE-100 44 Stockholm, Sweden Alexander Malkis Department of Informatics (I4), TUM, Boltzmannstr. 3, 85748 Garching, Germany 17 February 2020 Abstract For many decades, formal methods are considered to be the way for- ward to help the software industry to make more reliable and trustworthy software. However, despite this strong belief and many individual success stories, no real change in industrial software development seems to be oc- curring. In fact, the software industry itself is moving forward rapidly, and the gap between what formal methods can achieve and the daily software- development practice does not appear to be getting smaller (and might even be growing). In the past, many recommendations have already been made on how to develop formal-methods research in order to close this gap. This paper investigates why the gap nevertheless still exists and provides its own re- commendations on what can be done by the formal-methods–research com- munity to bridge it. Our recommendations do not focus on open research questions. In fact, formal-methods tools and techniques are already of high quality and can address many non-trivial problems; we do give some tech- nical recommendations on how tools and techniques can be made more ac- cessible. To a greater extent, we focus on the human aspect: how to achieve impact, how to change the way of thinking of the various stakeholders about this issue, and in particular, as a research community, how to alter our be- haviour, and instead of competing, collaborate to address this issue.
    [Show full text]
  • A Technical View of Theopenssl 'Heartbleed' Vulnerability
    A technical view of theOpenSSL ‘Heartbleed’ vulnerability A look at the memory leak in the OpenSSL Heartbeat implementation Bipin Chandra [email protected] Version 1.2.1, May 13, 2014 Abstract: This article describes ‘OpenSSL Heartbleed Vulnerability’ in detail. It describes the ‘HeartBleed’ problem, its causes and its impact. The purpose of this article is to increase awareness about Heartbleed vulnerability in OpenSSL library, using which attackers can get access to passwords, private keys or any encrypted data. It also explains how Heartbleed works, what code causes data leakage and explains the resolution with code fix. • Table of Contents 1Introduction to Heartbleed Vulnerability.................................................................................................3 2Heartbleed Explanation............................................................................................................................3 2.1The OpenSSL Project......................................................................................................................3 2.2SSL, TLS and DTLS Protocols........................................................................................................3 2.3TLS/DTLS Heartbeat Extension......................................................................................................4 2.3.1How the heartbeat works..........................................................................................................4 2.3.2Heartbeat Implementation in OpenSSL....................................................................................5
    [Show full text]
  • Mars Science Laboratory Landing
    PRESS KIT/JULY 2012 Mars Science Laboratory Landing Media Contacts Dwayne Brown NASA’s Mars 202-358-1726 Steve Cole Program 202-358-0918 Headquarters [email protected] Washington [email protected] Guy Webster Mars Science Laboratory 818-354-5011 D.C. Agle Mission 818-393-9011 Jet Propulsion Laboratory [email protected] Pasadena, Calif. [email protected] Science Payload Investigations Alpha Particle X-ray Spectrometer: Ruth Ann Chicoine, Canadian Space Agency, Saint-Hubert, Québec, Canada; 450-926-4451; [email protected] Chemistry and Camera: James Rickman, Los Alamos National Laboratory, Los Alamos, N.M.; 505-665-9203; [email protected] Chemistry and Mineralogy: Rachel Hoover, NASA Ames Research Center, Moffett Field, Calif.; 650-604-0643; [email protected] Dynamic Albedo of Neutrons: Igor Mitrofanov, Space Research Institute, Moscow, Russia; 011-7-495-333-3489; [email protected] Mars Descent Imager, Mars Hand Lens Imager, Mast Camera: Michael Ravine, Malin Space Science Systems, San Diego; 858-552-2650 extension 591; [email protected] Radiation Assessment Detector: Donald Hassler, Southwest Research Institute; Boulder, Colo.; 303-546-0683; [email protected] Rover Environmental Monitoring Station: Luis Cuesta, Centro de Astrobiología, Madrid, Spain; 011-34-620-265557; [email protected] Sample Analysis at Mars: Nancy Neal Jones, NASA Goddard Space Flight Center, Greenbelt, Md.; 301-286-0039; [email protected] Engineering Investigation MSL Entry, Descent and Landing Instrument Suite: Kathy Barnstorff, NASA Langley Research Center, Hampton, Va.; 757-864-9886; [email protected] Contents Media Services Information.
    [Show full text]
  • Integrating Testing Into Software Engineering Courses Supported by a Collaborative Learning Environment
    Integrating Testing into Software Engineering Courses Supported by a Collaborative Learning Environment PETER J. CLARKE and DEBRA DAVIS, Florida International University TARIQ M. KING , North Dakota State University JAIRO PAVA, Florida International University EDWARD L. JONES, Florida A&M University As software becomes more ubiquitous and complex, the cost of software bugs continues to grow at a staggering 18 rate. To remedy this situation, there needs to be major improvement in the knowledge and application of software validation techniques. Although there are several software validation techniques, software testing continues to be one of the most widely used in industry. The high demand for software engineers in the next decade has resulted in more software engineering (SE) courses being offered in academic institutions. However, due to the number of topics to be covered in SE courses, little or no attention is given to software testing, resulting in students entering industry with little or no testing experience. We propose a minimally disruptive approach of integrating software testing into SE courses by providing students access to a collaborative learning environment containing learning materials on testing techniques and testing tools. In this article, we describe the learning environment and the studies conducted to measure the benefits accrued by students using the learning environment in the SE courses. Categories and Subject Descriptors: D.2.5 [Software Engineering]: Testing and Debugging—Testing tools; K.3.1 [Computers and Education]: Computer Uses in Education—Collaborative learning General Terms: Experimentation Additional Key Words and Phrases: Course management, code coverage, software testing, unit testing, testing tutorials ACM Reference Format: Peter J.
    [Show full text]
  • Legal Liability for Bad Software
    SUPPLY CHAIN RISKS IN CRITICAL INFRASTRUCTURE But software has fallen short of its ability to meet expectations. And some of its failures have resulted in catastrophes of a mag- Legal Liability for nitude that for other sectors and industries—from meat packing to automobiles—have raised outrage so great that the government was compelled to establish national regulations (and in a few Bad Software cases, international) with whole agencies to enforce them. [3] Inexplicably, despite these costly and fatal software-related Karen Mercedes Goertzel disasters, and despite the recent spate of software malfuction- and defect-related automobile recalls at Toyota, Jeep-Chrysler, Abstract. This article focuses on lawsuits as a recourse for purchasers of defective Honda and Volvo, and despite the software-related fraud com- COTS software — particularly safety-critical COTS software and software-controlled mitted by Volkswagen, nothing has inspired a general or sus- systems, such as software used in commercial aircraft, motor vehicles, unmanned tained outcry or driven the government to undertake regulation aerial vehicles, medical devices, physical security systems, automated teller ma- of the software industry, as it has when other industries have chines, commercial robots and industrial control systems, a wide variety of COTS been involved in safety or security catastrophes. diagnostic and sensor systems, a nd the whole growing panoply of cyber-physical Despite decades of improvement of software safety and qual- devices and systems that collectively comprise the “Internet of Things.” [1] ity, most commercial software is still shipped with serious flaws and defects, some of which are exploitable as vulnerabilities. Background: Why Sue Software Companies? This has, in fact, been going on so long, it has simply become Most commercial software contains serious flaws and defects, expected and accepted by most software customers.
    [Show full text]