DOCSLIB.ORG

A Framework for Decision Support in Systems Architecting

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Framework for Decision Support in Systems Architecting A Framework for Decision Support in Systems Architecting by Willard Lennox Simmons B.S., University of New Hampshire, 1997 M.S., University of Colorado, 1999 M.S.E., Princeton University, 2005 Submitted to the Department of Aeronautics and Astronautics in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY February 2008 c Massachusetts Institute of Technology 2008. All rights reserved. Author............................................................................ Department of Aeronautics and Astronautics January 11, 2008 Certified by........................................................................ Edward F. Crawley Ford Professor of Engineering Thesis Supervisor Certified by........................................................................ Brian C. Williams Professor of Aeronautics and Astronautics Committee Member Certified by........................................................................ Benjamin H. Y. Koo Associate Professor of Industrial Engineering, Tsinghua University Committee Member Accepted by....................................................................... David L. Darmofal Associate Professor of Aeronautics and Astronautics Chair, Committee on Graduate Students 2 A Framework for Decision Support in Systems Architecting by Willard Lennox Simmons Submitted to the Department of Aeronautics and Astronautics on January 11, 2008, in partial fulfillment of the requirements for the degree of Doctor of Philosophy Abstract The objective of this thesis is to provide a method and tool to leverage computational resources to empower a systems architect to reason about architectural decisions more comprehensively and effectively compared to traditional approaches. This thesis pro- vides a computational framework for decision support called the Architecture Decision Graph framework. It supports human decision-making by providing a methodology for generating and analyzing architectures as the result of a set of interrelated deci- sions. ADG’s explicit representation of an interconnected decision problem is a bipar- tite graph of decision variables, property variables, logical constraints, and property functions. The Architecture Decision Graph’s framework provide tools for reasoning about the structure of a decision problem, generating the set of feasible combinations of decisions, and simulating their outcome. The underlying computational engine used by ADG is the Object-Process Network (OPN) kernel. The contribution of this thesis to the field of systems architecting falls into three areas: First, the thesis contributes the ADG representation of an architectural candi- date space as a set of interrelated decision variables. Second, the thesis contributes the ADG framework, which leverages the ADG representation of architecture to transform an architecting problem into a computational problem. Third, this thesis contributes decision space viewing tools, which present the potential impact of changes in the assignments of the decision variables to an architect. The ADG representation, analysis methodology, and tools are demonstrated with two applications. The first application is a retrospective study of the architectural decisions related to the development of the Apollo moon project of the 1960’s. The second application is a study of decisions in support of NASA’s lunar outpost ar- chitecting effort. The applications include discussions of the practical considerations related to the use of ADG as a decision representation method, the efficiency of the simulation algorithm, and a discussion of the architecting insights that can be drawn from the results. Thesis Supervisor: Edward F. Crawley Title: Ford Professor of Engineering 3 4 Acknowledgments I would like to thank my committee, Edward F. Crawley, Brian C. Williams, and Ben- jamin H. Y. Koo for their support of my research. Professor Crawley’s enthusiasm for this research was infectious. He introduced me to the field of systems architecting research when I first came to MIT, and I haven’t looked back. As an advisor, Profes- sor Crawley was a perfect match for me. He was hands-off for weeks at a time, which allowed me to work on new ideas on my own. Then, when the time was right, we would spend hours at his home on a Saturday, sitting around the dinner table refining the details. I appreciate the confidence he instilled in me. Professor Brian Williams introduced me to the world of autonomous reasoning and Artificial Intelligence re- search, which is filled with clever ideas for representing and processing knowledge in order to generate new knowledge. Many of the ideas in this thesis had their genesis in his Introduction to Principles of Autonomy and Decision Making. I credit Professor Benjamin H. Y. Koo with changing the way I think about design problems. Over the course of three years, he trained me to look for solutions at the highest level of abstraction first, rather than getting lost in the details. My two thesis readers, Professor Olivier de Weck and Dr. Jana Schwartz, put a tremendous amount of time and thought into giving me feedback on my thesis. It seems almost unfair that their names are not on the cover of my thesis. Their comments helped me focus the argument for my contribution. Professor Nick Roy was my minor advisor. I’m grateful that he was always willing to set aside the time in his busy schedule to discuss my research. This achievement would not be possible without the support of my family. Striving for a doctoral degree meant five years of missed dinners, canceled weekend plans, and holiday plans invaded by the clicking sound of a laptop keyboard. When my stress- levels peaked, my wife, Madeline T. Pham, was always there to calm me down. When I was stuck in the office until late at night, she was always willing to pick me up and drive me home. Madeline is a constant source of encouragement and I could not have done this without her. My parents’ influence molded me into the person I am today. My father, Theodore R. Simmons, taught me to question everything I am told and everything I have read. Inquisitiveness is the most important trait of a researcher. My mother, Janet L. Simmons, inspired me to overcome bumps in the road of life. Whenever I had a tough day, she always said, Tomorrow’s another day. It sounds silly, but it’s really true. Tomorrow is another day, and I am there! My colleagues at MIT have been tremendously helpful. Wilfried Hofstetter took the time read every section of my thesis with his characteristic precision. His feedback was invaluable. The extensive research by Paul Wooster and Wilfried Hofstetter formed the basis for the NASA Lunar Outpost Study in Chapter 5 and helped refine the Apollo study in Chapter 4. Getting to know Ryan Boas has been a pleasure. He was always willing to give professional, sharp, targeted advice on my research. Jaeymung Ahn has been a tremendous help with the details of my work ever since the first day I arrived at MIT. Jaeymung and Lars Blackmore were my study partners for the qualifying exam. Maokai Lin, who arrived at MIT just five months ago, has been helped with many software implementation details. Kathi Cofield, who has been 5 Ed Crawley’s assistant for five years, has always been helpful taking care of scheduling snafus and making sure I get the time I needed with Ed. It’s been a lot of fun with her. I can’t name all the members of the Space Architects Group who contributed to this effort, but I will say that I was especially moved when about fifteen people showed to my thesis defense practice the Friday before my defense. Five more people came to the office in the middle of blizzard on the following Sunday to help me put the final touches on my talk. In the past year, I’ve met two students from Professor Daniel Jackson’s lab in EECS. Rob Seater and Derek Rayside, two brilliant computer scientists, have gener- ously spent many hours of their time talking about my research instead of making progress on theirs. I hope I can return the favor soon. This work was made possible by the generous support of Draper Laboratory under a University IR&D grant. I’ve thoroughly enjoyed my exchanges with Phil Babcock, Jose Lopez, Jasjit Heckathorn, and Jana Schwartz. Each of them gave me a mixture of encouragement and targeted comments and helped me focus on the key unanswered questions. My semi-annual briefings at Draper have always been able to snap this academic research back to reality. 6 Contents Abstract 3 Acknowledgments 5 Contents 7 List of Figures 11 List of Tables 15 1 Introduction 17 1.1 Overview .................................. 17 1.2 Decisions and Decision Support ..................... 19 1.3 Systems Architecture and Systems Architecting ............ 23 1.4 Needs of the Architectural Decision-Maker ............... 26 1.5 Summary and Synopsis .......................... 27 2 Literature Review 29 2.1 Overview .................................. 29 2.2 Definition of Decision Support System ................. 29 2.2.1 Aspects of an Architectural DSS ................. 30 2.3 State of Practice ............................. 31 2.3.1 Table and Matrix-Based Decision Support ........... 31 2.3.2 Tree and Directed Graph-Based Decision Support ....... 33 2.3.3 Constraint Graph-Based Decision Support ........... 41 2.3.4 Meta-Language-Based Decision Support ............ 43 2.4 Summary ................................. 47 3 Architecture Decision Graph 49 3.1 Overview .................................. 49 3.2 The Architecture Decision Graph Framework
Load more

Recommended publications
  • Supplemental Statement
    Received by NSD/FARA Registration Unit 06/21/2021 2:43:26 PM OMB No. 1124-0002; Expires July 31, 2023 U.S. Department of Justice Supplemental Statement Washington, dc 20530 Pursuant to the Foreign Agents Registration Act of 1938, as amended For 6 Month Period Ending May 31, 2021 (Insert dale) I - REGISTRANT 1. (a) Name of Registrant (b) Registration Number Reston Translator, LLC 6490 (c) Primary Business Address On file with DOJ 2. Has there been a change in the information previously furnished in connection with the following? (a) If an individual: (1) Residence address(es) Yes □ No □ (2) Citizenship Yes □ No □ (3) Occupation Yes □ No □ (b) If an organization: (1) Name Yes □ No 0 (2) Ownership or control Yes □ No 0 (3) Branch offices Yes □ No 0 (c) Explain fully all changes, if any, indicated in Items (a) and (b) above. IF THE REGISTRANT IS AN INDIVIDUAL, OMIT RESPONSES TO ITEMS 3, 4, 5, AND 6. 3. If the registrant previously filed an Exhibit C*1, state whether any changes therein have occurred during this 6 month reporting period. Yes □ No 0 If yes, has the registrant filed an updated Exhibit C? Yes □ No □ If no, please file the updated Exhibit C. 1 The Exhibit C, for which no printed form is provided, consists of a true copy of the charter, articles of incorporation, association, and by laws of a registrant that is an organization. (A waiver of the requirement to file an Exhibit C may be obtained for good cause upon written application to the Assistant Attorney General, National Security Division, U.S.
    [Show full text]
  • De.Sputniknews.Com
    de.sputniknews.com The German-language site of Sputnik News, a Russian state-owned news agency that publishes propaganda and disinformation to serve Proceed with caution: This website severely violates basic the Kremlin’s interests. standards of credibility and transparency. Score: 12.5/100 Ownership and Sputnik Deutschland is a subsidiary of Rossiya Financing Segodnya, a Russian government-owned international Does not repeatedly publish news agency. Rossiya Segodnya was established in false content (22points) December 2013 by Russian President Vladimir Putin. Gathers and presents The international broadcasting service, Voice of Russia, information responsibly (18) and the state-run news agency, RIA Novosti, were Regularly corrects or clarifies dissolved and merged into Rossiya Segodnya. errors (12.5) Rossiya Segodnya launched Sputnik in November Handles the difference between news and opinion responsibly 2014. Sputnik Deutschland also runs the radio station (12.5) SNA-Radio, which broadcasts in collaboration with the Avoids deceptive headlines (10) Bavarian radio station Mega Radio. Website discloses ownership The site runs advertisements. and financing (7.5) Clearly labels advertising (7.5) Content Sputnik Deutschland covers international politics, Reveals who's in charge, business, science, technology, culture, and celebrities. including any possible conflicts It has a separate section for German news, which of interest (5) primarily covers politics and major crime stories. The site provides names of content creators, along with The site states on its About Us (Über Uns) page that it either contact or biographical “reports on global politics and business only for information (5) audiences abroad.” Sputnik is headquartered in Moscow, has bureaus in 34 countries, and produces Criteria are listed in order of content in 30 languages.
    [Show full text]
  • Information to Users
    INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while ofriers may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. ProQuest Information and Learning 300 North Zeeb Road, Ann Arbor, Ml 48106-1346 USA 800-521-0600 UMT USING THE COGNITIVE APPRENTICESHIP MODEL TO TEACH ACTION RESEARCH TO PRESERVICE TEACHERS DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Georgene Rawding Risko, M.Ed. ***** The Ohio State University 2001 Dissertation Committee: Approved by Professor Marilyn Johnston, Adviser Professor Rebecca Kantor College of Education Professor Barbara Seidl UMI Number 3031256 UMI' UMI Microform 3031256 Copyright 2002 by Bell & Howell Information and Learning Company.
    [Show full text]
  • The Art of Systems Architecting Second Edition
    THE ART OF SYSTEMS ARCHITECTING SECOND EDITION ¤2000 CRC Press LLC THE ART OF SYSTEMS ARCHITECTING SECOND EDITION Mark W. Maier Aerospace Corporation Chantilly, Virginia Eberhardt Rechtin University of Southern California Los Angeles, California CRC Press Boca Raton London New York Washington, D.C. ¤2000 CRC Press LLC Library of Congress Cataloging-in-Publication Data The art of systems architecting / edited by Mark W. Maier, Eberhardt Rechtin.—2nd ed. p. cm. Pre. ed. entered under Rechtin Includes bibliographical references and index. ISBN 0-8493-0440-7 (alk. paper) 1. Systems Engineering. This book is no longer in a series. I Maier, Mark. Rechtin, Eberhardt. III. Rechtin, Eberhardt. Art of systems architecting. TA168 .R368 2000 620′.001′171—dc21 00-03948 CIP This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Reasonable efforts have been made to publish reliable data and information, but the author and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use. Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage or retrieval system, without prior permission in writing from the publisher. The consent of CRC Press LLC does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific permission must be obtained in writing from CRC Press LLC for such copying.
    [Show full text]
  • U.S. Government Printing Office Style Manual, 2008
    U.S. Government Printing Offi ce Style Manual An official guide to the form and style of Federal Government printing 2008 PPreliminary-CD.inddreliminary-CD.indd i 33/4/09/4/09 110:18:040:18:04 AAMM Production and Distribution Notes Th is publication was typeset electronically using Helvetica and Minion Pro typefaces. It was printed using vegetable oil-based ink on recycled paper containing 30% post consumer waste. Th e GPO Style Manual will be distributed to libraries in the Federal Depository Library Program. To fi nd a depository library near you, please go to the Federal depository library directory at http://catalog.gpo.gov/fdlpdir/public.jsp. Th e electronic text of this publication is available for public use free of charge at http://www.gpoaccess.gov/stylemanual/index.html. Use of ISBN Prefi x Th is is the offi cial U.S. Government edition of this publication and is herein identifi ed to certify its authenticity. ISBN 978–0–16–081813–4 is for U.S. Government Printing Offi ce offi cial editions only. Th e Superintendent of Documents of the U.S. Government Printing Offi ce requests that any re- printed edition be labeled clearly as a copy of the authentic work, and that a new ISBN be assigned. For sale by the Superintendent of Documents, U.S. Government Printing Office Internet: bookstore.gpo.gov Phone: toll free (866) 512-1800; DC area (202) 512-1800 Fax: (202) 512-2104 Mail: Stop IDCC, Washington, DC 20402-0001 ISBN 978-0-16-081813-4 (CD) II PPreliminary-CD.inddreliminary-CD.indd iiii 33/4/09/4/09 110:18:050:18:05 AAMM THE UNITED STATES GOVERNMENT PRINTING OFFICE STYLE MANUAL IS PUBLISHED UNDER THE DIRECTION AND AUTHORITY OF THE PUBLIC PRINTER OF THE UNITED STATES Robert C.
    [Show full text]
  • Public Service, Private Media: the Political Economy of The
    PUBLIC SERVICE, PRIVATE MEDIA: THE POLITICAL ECONOMY OF THE CABLE-SATELLITE PUBLIC AFFAIRS NETWORK (C-SPAN) by GLENN MICHAEL MORRIS A DISSERTATION Presented to the School of Journalism and Communication and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Doctor of Philosophy June 2010 11 University of Oregon Graduate School Confirmation ofApproval and Acceptance of Dissertation prepared by: Glenn Morris Title: "Public Service, Private Media: The Political Economy ofthe Cable-Satellite Public Affairs Network (C-SPAN)." This dissertation has been accepted and approved in partial fulfillment ofthe requirements for the degree in the Department of Journalism and Communication by: Janet Wasko, Chairperson, Journalism and Communication Carl Bybee, Member, Journalism and Communication Gabriela Martinez, Member, Journalism and Communication John Foster, Outside Member, Sociology and Richard Linton, Vice President for Research and Graduate Studies/Dean ofthe Graduate School for the University of Oregon. June 14,2010 Original approval signatures are on file with the Graduate School and the University of Oregon Libraries. 111 © 2010 Glenn Michael Morris IV An Abstract of the Dissertation of Glenn Michael Morris for the degree of Doctor of Philosophy in the School of Journalism and Communication to be taken June 2010 Title: PUBLIC SERVICE, PRIVATE MEDIA: THE POLITICAL ECONOMY OF THE CABLE-SATELLITE PUBLIC AFFAIRS NETWORK (C-SPAN) Approved: _ Dr. Janet Wasko The Satellite-Cable Public Affairs Network (C-SPAN) is the only television outlet in the U.S. providing Congressional coverage. Scholars have studied the network's public affairs content and unedited "gavel-to-gavel" style of production that distinguish it from other television channels.
    [Show full text]
  • Russia's Information War Propaganda Or Counter-Propaganda?
    Briefing October 2016 Russia's information war Propaganda or counter-propaganda? SUMMARY In the West, Russia is more often seen as an instigator than a target of propaganda. However, Kremlin documents and Russian media argue that Russia itself faces serious threats from external information activity. Allegedly, such threats could undermine political stability in the country, curtail its international influence, and jeopardise traditional values. Moscow therefore argues that it needs to take defensive measures. The Kremlin claims that the USA and its allies are waging an information war against Russia. ISIL/Da'esh, which produces an increasing amount of Russian-language material, is another major adversary. At home, the Kremlin has clamped down on media and civil society to exclude external influences. Internationally, it has launched media weapons such as news channel RT to compete with Western media, and bankrolled pro-Russian NGOs. Critics of the Kremlin dispute its claims of a Western-led information war against Russia, and accuse it of conducting disinformation campaigns to justify aggression in neighbouring countries such as Ukraine. In terms of meeting their declared goal of protecting Russia from information threats, Russian measures have succeeded in excluding most foreign influences from the country. The international impact is more questionable; Russia's image is still very poor, but that does not mean that the Kremlin cannot defend what it sees as the country's external interests. In this briefing: Strategy and priorities Roles and responsibilities Adversaries Main tools Insights and criticism EPRS | European Parliamentary Research Service Author: Martin Russell Members' Research Service PE 589.810 EN EPRS Russia's information war: Propaganda or counter-propaganda? Definitions: 'information', 'information war', 'propaganda' Russian official texts refer to 'information' rather than to 'propaganda'.
    [Show full text]
  • The Fast Approval and Slow Rollout of Sputnik V: Why Is Russia's Vaccine
    Article The Fast Approval and Slow Rollout of Sputnik V: Why Is Russia’s Vaccine Rollout Slower than That of Other Nations? Elza Mikule 1,*,† , Tuuli Reissaar 1,† , Jennifer Villers 1,† , Alain Simplice Takoupo Penka 1,† , Alexander Temerev 2 and Liudmila Rozanova 2 1 Global Studies Institute, University of Geneva, 1205 Geneva, Switzerland; [email protected] (T.R.); [email protected] (J.V.); [email protected] (A.S.T.P.) 2 Institute of Global Health, University of Geneva, 1202 Geneva, Switzerland; [email protected] (A.T.); [email protected] (L.R.) * Correspondence: [email protected] † These authors contributed equally. Abstract: The emergence of the SARS-CoV-2 pandemic in the beginning of 2020 led to the deployment of enormous amounts of resources by different countries for vaccine development, and the Russian Federation was the first country in the world to approve a COVID-19 vaccine on 11 August 2020. In our research we sought to crystallize why the rollout of Sputnik V has been relatively slow considering that it was the first COVID-19 vaccine approved in the world. We looked at production capacity, at the number of vaccine doses domestically administered and internationally exported, and at vaccine hesitancy levels. By 6 May 2021, more first doses of Sputnik V had been administered Citation: Mikule, E.; Reissaar, T.; abroad than domestically, suggesting that limited production capacity was unlikely to be the main Villers, J.; Takoupo Penka, A.S.; reason behind the slow rollout. What remains unclear, however, is why Russia prioritized vaccine Temerev, A.; Rozanova, L.
    [Show full text]
  • The Army Lawyer (ISSN 0364-1287) Editor, Captain John E
    Headquarters, Demrtment of the Armv A d Department of the Army Pamphlet 27-50-276 November 1995 Table of Contents I Articles Tips and Observations from the Trial Bench: The Sequel ..................................................................................................................................................... 3 Colonel Gary 1. Holland Summary Judgment Motions in Discrimination Litigation: A Useful Tool or a Waste of Good Trees? .............................................................................. 12 Major James E. Macklin A Military Look into Space: The Ultimate High Ground ...................................................................................................................................................... 19 Major Dough S. Anderson USALSA Report ...... ............................................................................................................................................... ............ 29 United States Army &gal Services Agency Clerk of Court Notes ............................................................................................................................................................................................ 29 Courts-Martial Processing Times and Nonjudicial Punishment Rates Litigation Division Notes ................................................ ............................................. .................................................. -. 30 E Pluribus Unum-Maybe: The Ninth and Tenth Circuits Conflict on Bankruptcy Setoff Rights Involving
    [Show full text]
  • Dec06 POSTER 012207.Indd
    The National Cancer Institute at Frederick What is it? Where is it? Story on page 20. Outstanding Mentors WINTER 2006–2007 What Makes an Outstanding Mentor? IN THIS ISSUE by Maritta Perry Grau Encouraging Young Scientists 4 “The day you accept a student or postdoc, you become a mentor,” Science Today 6 said Dr. Andrew Byrd, chief of the Structural Biophysics Laboratory, Platinum Publications 8 Center for Cancer Research Poster People Profi le 10 (CCR), at NCI-Frederick. Dr. Byrd and two other CCR Christopher J. Michejda 11 colleagues were among 11 scientists that NCI recently Science Communications 12 recognized for their excellent mentoring skills. Dr. William Outreach and Special Programs 13 Farrar, head of the Cancer Stem Second from right, Dr. William Farrar, Head, Cell Section, Laboratory of Cancer Stem Cell Section, Laboratory of Protective Services 14 Cancer Prevention, received Cancer Prevention, CCR, with mentees. an Outstanding Mentor Award. Open Houses 15 Dr. Byrd and Dr. Alexander for their commitment to fostering the Wlodawer, chief, Macromolecular independent careers of their fellows, Books for Mongolia 16 Crystallography Laboratory, received students, and trainees. According to Frederick Employee Diversity Mentor of Merit awards. Dr. John Niederhuber, NCI director, Team 17 Created in 2001, the Mentoring “Each of this year’s Mentor honorees Awards recognize NCI investigators continued on page 2 New Faces at NCI-Frederick 18 Employee Assistance Program NCI-Frederick People 19 The Poster Puzzler 20 Employee Assistance Program
    [Show full text]
  • Systems Architecting: Practices for Agile Development in the Systems Engineering Context
    14th NDIA Systems Engineering Conference 24-27 October 2011 Tutorial 13122 Systems Architecting: Practices for Agile Development in the Systems Engineering Context Tommer R. Ender, PhD Tom McDermott Nicholas Bollweg Senior Research Engineer Dir. of Research and Dep. Dir., GTRI Research Engineer I [email protected] [email protected] [email protected] (404) 407-8639 (404) 407-8240 (404) 407-7207 Goals and Learning Objectives Introduce the student to methods and practices for systems architecting Apply agile principles and incremental development to architecting Learn novel methods for combining narrative, visual, and specification techniques for rapid and incremental architecture development Learn practical approaches to facilitate the process introduced in this tutorial Copyright © Georgia Tech. All Rights Reserved. 2011 NDIA SE Conference: Tutorial 13122 – Systems Architecting 2 Summary of Topics Fundamental systems architecting Incremental development of ill defined or evolving systems through agile development Evaluating architecture quality through scenario based methods is reviewed in the context of satisfying business drivers Practical management methods are introduced focusing on the leadership role of the systems architect on a development team Copyright © Georgia Tech. All Rights Reserved. 2011 NDIA SE Conference: Tutorial 13122 – Systems Architecting 3 Narrative Context Capability Operators • LifeCycle Enterprise Is It Effective? • Constraints • Business Cases • Maintenance Heuristics • Operational Views Engineering Design Rules Stakeholders/Users Design Rule Sets • Interface specification Requirements • Reference Modeling Does it Language • Environment • Flow Diagrams Provide • Constraints • etc… Value? • Needs through Use Cases System Views Scenarios Utility Defined Use Quality Attributes Developers CONOPS Development Cases Rules • Abstraction Is It Useful? Architectural • Constraints • Patterns Significant • Heuristics Use Cases Copyright © Georgia Tech.
    [Show full text]
  • WP¥ Kllv Rrau' Dºlp]Q]¨OU. CT Yop¾v S\Lh|°¥¨V D¾qu Iuoflsjl, Oãoçvqoolp] Bwp V]J]Opu Ja¾lsjl Kla]Š
    F.Y. Reg. No. ....................................... 623623 March 2017 Name ............................................ Part - III ELECTRONICS Maximum : 60 Scores Time : 2 Hours Cool off time : 15 Minutes General Instructions to Candidates : z There is a 'Cool off time' of 15 minutes in addition to the writing time of 2 hrs. z You are neither allowed to write your answers nor to discuss anything with others during the 'cool off time'. z Use the 'cool off time' to get familiar with questions and to plan your answers. z Read the questions carefully before answering. z All questions are compulsory and only internal choice is allowed. z When you select a question, all the sub-questions must be answered from the same question itself. z Calculations, figures and graphs should be shown in the answer sheet itself. z Malayalam version of the questions is also provided. z Give equations wherever necessary. z Electronic devices except nonprogrammable calculators are not allowed in the Examination Hall. j]¡SÇw°¥: z j]¡Ç]xVa yop¾]jV kOrRo 15 o]j]ãV "WP¥ KLlV RRaU' DºLp]q]¨OU. CT yop¾V S\Lh|°¥¨V D¾qU IuOfLSjL, oãOçvqOoLp] Bwp v]j]opU ja¾LSjL kLa]Š. z D¾q°¥ IuOfOÐf]jV oOÒV S\Lh|°¥ èÈLkO¡‹U vLp]¨eU. z IŠL S\Lh|°¥¨OU D¾qU IuOfeU. z KqO S\Lh|jÒ¡ D¾qRouOfL¢ RfqR´aO¾O Wu]´L¤ Dk S\Lh|°tOU ASf S\Lh| jÒq]¤ j]ÐV fRÐ RfqR´aOS¨ºfLeV. z We¨V WPŸsOW¥, \]Nf°¥, NYLlOW¥, IÐ]v D¾qSkÕr]¤¾RÐ DºLp]q]¨eU. z Bvw|oOç òs¾V yovLW|°¥ RWLaO¨eU.
    [Show full text]