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A Survey of Architectural Styles.V4
Survey of Architectural Styles Alexander Bird, Bianca Esguerra, Jack Li Liu, Vergil Marana, Jack Kha Nguyen, Neil Oluwagbeminiyi Okikiolu, Navid Pourmantaz Department of Software Engineering University of Calgary Calgary, Canada Abstract— In software engineering, an architectural style is a and implementation; the capabilities and experience of highest-level description of an accepted solution to a common developers; and the infrastructure and organizational software problem. This paper describes and compares a selection constraints [30]. These styles are not presented as out-of-the- of nine accepted architectural styles selected by the authors and box solutions, but rather a framework within which a specific applicable in various domains. Each pattern is presented in a software design may be made. If one were to say “that cannot general sense and with a domain example, and then evaluated in be called a layered architecture because the such and such a terms of benefits and drawbacks. Then, the styles are compared layer must communicate with an object other than the layer in a condensed table of advantages and disadvantages which is above and below it” then one would have missed the point of useful both as a summary of the architectural styles as well as a architectural styles and design patterns. They are not intended tool for selecting a style to apply to a particular project. The to be definitive and final, but rather suggestive and a starting paper is written to accomplish the following purposes: (1) to give readers a general sense of several architectural styles and when point, not to be used as a rule book but rather a source of and when not to apply them, (2) to facilitate software system inspiration. -
Diplomarbeit Im Fachbereich Elektrotechnik & Informatik an Der
Bachelor Thesis Prannoy Mulmi Design and Implementation of an Archive Microservice solution for the Multi-Agent Research and Simulation Distributed System Fakultät Technik und Informatik Faculty of Engineering and Computer Science Department Informations- und Department of Information and Elektrotechnik Electrical Engineering Prannoy Mulmi Design and Implementation of an Archive Microservice solution for the Multi-Agent Research and Simulation Distributed System Bachelor Thesis based on the study regulations for the Bachelor of Engineering degree programme Information Engineering at the Department of Information and Electrical Engineering of the Faculty of Engineering and Computer Science of the Hamburg University of Applied Sciences Supervising examiner : Prof. Dr. rer. nat. Henning Dierks Second Examiner : Prof. Dr. rer. nat. Thomas Clemen Day of delivery 23. Juli 2018 Prannoy Mulmi Title of the Bachelor Thesis Design and Implementation of an Archive Microservice solution for the Multi-Agent Research and Simulation Distributed System Keywords Distributed System, Microservice, Two-Phase commit protocol, Archive, Decentrali- zed data, Multi-Agent Research and Simulation (MARS) Abstract This thesis introduces the design and implementation of an Archive Microservice in the Multi-Agent Research and Simulation (MARS) framework. Due to the distributed architecture of the system, the process of the archive and restore is complex to imple- ment and maintain as there multiple possibilities of failure. This thesis uses different strategies to -
Summer 2012 (Volume 20 - Number 2)
METHODS & TOOLS Practical knowledge for the software developer, tester and project manager ISSN 1661-402X Summer 2012 (Volume 20 - number 2) www.methodsandtools.com Do Software Developers Want to Be Managers? According to surveys, Agile is now implemented by a majority of organizations and Scrum is the project management framework the most widely used. A characteristic of Scrum teams is that they are (or should be) self-organized. Team members are now responsible to divide between themselves the workload and they will need to deal with conflicts between team members. The former project manager authority and responsibilities are spread amongst the Scrum team. But do Agile developers really want this? Self-organization relies on the ability of team members to communicate and negotiate. The transition from a hierarchical team organization to a flat relationship where everybody participates is not easy and faces many challenges. Software developers have in majority an introverted personality type and this is not the best setting to interact with colleagues or even just to express needs or feelings. Teams might end us as just being organized by the most vocal members. Another implied hypothesis of self-organization is that all team members should have an equal weight in decisions, even if technical superiority or leadership might be recognized. This might not exist when you have teams that mix internal employees and contractors that might be denied authority. Self- organization also works in a culture of individual responsibility, affirmation and (positive) contradiction. This is not always the case in all organizations or countries. The team has now to deal with non-performing members, people that are either technically limited or that have a difficult personality. -
Mutable Class Design Pattern Nikolay Malitsky Nova Southeastern University, [email protected]
Nova Southeastern University NSUWorks CEC Theses and Dissertations College of Engineering and Computing 2016 Mutable Class Design Pattern Nikolay Malitsky Nova Southeastern University, [email protected] This document is a product of extensive research conducted at the Nova Southeastern University College of Engineering and Computing. For more information on research and degree programs at the NSU College of Engineering and Computing, please click here. Follow this and additional works at: https://nsuworks.nova.edu/gscis_etd Part of the Other Computer Sciences Commons, and the Theory and Algorithms Commons Share Feedback About This Item NSUWorks Citation Nikolay Malitsky. 2016. Mutable Class Design Pattern. Doctoral dissertation. Nova Southeastern University. Retrieved from NSUWorks, College of Engineering and Computing. (956) https://nsuworks.nova.edu/gscis_etd/956. This Dissertation is brought to you by the College of Engineering and Computing at NSUWorks. It has been accepted for inclusion in CEC Theses and Dissertations by an authorized administrator of NSUWorks. For more information, please contact [email protected]. Mutable Class Design Pattern by Nikolay Malitsky A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Computer Science Graduate School of Computer and Information Sciences Nova Southeastern University 2016 We hereby certify that this dissertation, submitted by Nikolay Malitsky, conforms to acceptable standards and is fully adequate in scope and quality to fulfill the dissertation requirements for the degree of Doctor of Philosophy. _____________________________________________ ________________ Michael J. Laszlo, Ph.D. Date Chairperson of Dissertation Committee _____________________________________________ ________________ Francisco J. Mitropoulos, Ph.D. Date Dissertation Committee Member _____________________________________________ ________________ Amon B. -
Security Pattern Validation and Recognition
Security-Pattern Recognition and Validation Dissertation Submitted by Michaela Bunke on 12th December 2018 to the Universit¨atBremen Faculty of Mathematics and Computer Science in partial fulfillment of the requirements for the degree of Doktor der Ingenieurwissenschaften { Dr.-Ing. { Reviewed by Prof. Dr. Hans-J¨orgKreowski Universit¨atBremen, Germany and Dr. Karsten Sohr Universit¨atBremen, Germany In Memorial of Ilse Schlamilch Karl Schlamilch Manfred Friedrichs 21 November 1924 03 March 1927 29 August 1935 09 June 2017 19 June 2018 3 July 2017 ABSTRACT The increasing and diverse number of technologies that are connected to the Internet, such as distributed enterprise systems or small electronic devices like smartphones, brings the topic IT security to the foreground. We interact daily with these technologies and spend much trust on a well-established software development process. However, security vulnerabilities appear in software on all kinds of PC(- like) platforms, and more and more vulnerabilities are published, which compromise systems and their users. Thus, software has also to be modified due to changing requirements, bugs, and security flaws and software engineers must more and more face security issues during the software design; especially maintenance programmers must deal with such use cases after a software has been released. In the domain of software development, design patterns have been proposed as the best-known solutions for recurring problems in software design. Analogously, security patterns are best practices aiming at ensuring security. This thesis develops a deeper understanding of the nature of security patterns. It focuses on their validation and detection regarding the support of reviews and maintenance activities. -
A CASE STUDY by Siegfried Steiner ([email protected])
BIG DATA PROCESSING THE LEAN WAY – A CASE STUDY by Siegfried Steiner ([email protected]) 19/08/14 – 17/01/21 2 Content 1.Preface.............................................................................................................3 2.Abstract...........................................................................................................3 3.The mission.....................................................................................................4 4.Terminology.....................................................................................................5 5.Constraints......................................................................................................6 6.Approach.........................................................................................................7 7.Technology stack.............................................................................................8 8.Development process....................................................................................10 Excursus: Scrum.....................................................................................10 Excursus: Test-driven development........................................................11 9.Into the cloud: Scalability..............................................................................12 Excursus: IPO Model...............................................................................13 1.Input - Receive requests (and process output)..........................................14 Excursus: Front -
Architectural Styles and Patterns
Architectural Styles and Patterns Wednesday 13 February 13 Architectural Patterns & Styles Consensus Controversy • Established • Philosophy (context- Solutions problem-solution vs components- Common • connections) vocabulary Granularity (vs Document • • Design patterns) Reason over quality • • Categorization Wednesday 13 February 13 Architectural Patterns (Wikipedia) • Presentation- abstraction- • Peer-to-peer control • Service-oriented • Three-tier architecture • Pipeline • Naked Objects Implicit Invocation • Model-View • Controller • Blackboard Wednesday 13 February 13 Architectural Patterns (Shaw & Garland) • Dataflow Systems -- Batch, Pipes and Filters • Call-and-return systems -- Main program and subroutines, OO systems, Hierarchical Layers • Independent components -- Communicating processes, Event systems • Virtual Machines -- Interpreters, Rule-based systems • Data-Centered Systems -- Databases, Hypertext systems Blackboards Wednesday 13 February 13 Elements of Architecture (Shaw & Garland) Components Connectors • Clients • Procedure calls • Servers • Events broadcast • Filters • Database protocols • Layers • Pipes • Databases - What are the structural patterns permitted? - What is the underlying computational model? - What are the invariants of the style? BUT ... - What are examples of its use? - What are the tradeoffs? - ... Wednesday 13 February 13 Architectural Patterns (Baas, Clements & Kazman) • Dataflow Systems -- Batch, Pipes and Filters • Data-Centered -- Repository, Blackboard • Virtual machine -- Interpreter, Rule-based -
{Download PDF} Use Cases Requirements in Context 2Nd Edition
USE CASES REQUIREMENTS IN CONTEXT 2ND EDITION PDF, EPUB, EBOOK Daryl Kulak | --- | --- | --- | 9780321154989 | --- | --- R.S. Pressman & Associates, Inc. Managing Software Requirements, Second Edition , specifically addresses the ongoing challenge of managing change and describes a process for assuring that project scope is successfully defined and agreed upon by all stakeholders. Domain-Driven Design DDD software modeling delivers powerful results in practice, not just in theory, which is …. It is a very good book made …. Being a successful software architect is more than just possessing technical knowledge. Upon completion of an object-oriented design, you are faced with a troubling question: "Is it good, …. Skip to main content. Start your free trial. Book description "Many projects fail because developers fail to build the right thing. Topics covered include: The five steps in problem analysis Business modeling and system engineering Techniques for eliciting requirements from customers and stakeholders Establishing and managing project scope Applying and refining use cases Product management Transitioning from requirements to design and implementation Transitioning from use cases to test cases Agile requirements methods XB Show and hide more. Use case diagrams are typically developed in the early stage of development and people often apply use case modeling for the following purposes:. A standard form of use case diagram is defined in the Unified Modeling Language as shown in the Use Case Diagram example below:. Use cases share different kinds of relationships. Defining the relationship between two use cases is the decision of the software analysts of the use case diagram. A relationship between two use cases is basically modeling the dependency between the two use cases. -
Microservices Antipatterns and Pitfalls
Microservices AntiPatterns and Pitfalls Mark Richards Beijing Boston Farnham Sebastopol Tokyo Microservices Antipatterns and Pitfalls by Mark Richards Copyright © 2016 O’Reilly Media, Inc. All rights reserved. Printed in the United States of America. Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472. O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles (http://safaribooksonline.com). For more information, contact our corporate/institutional sales department: 800-998-9938 or [email protected]. Editor: Brian Foster Interior Designer: David Futato Production Editor: Melanie Yarbrough Cover Designer: Karen Montgomery Copyeditor: Christina Edwards Illustrator: Rebecca Demarest Proofreader: Amanda Kersey July 2016: First Edition Revision History for the First Edition 2016-07-06: First Release The O’Reilly logo is a registered trademark of O’Reilly Media, Inc. Microservices AntiPatterns and Pitfalls, the cover image, and related trade dress are trademarks of O’Reilly Media, Inc. While the publisher and the author have used good faith efforts to ensure that the information and instructions contained in this work are accurate, the publisher and the author disclaim all responsibility for errors or omissions, including without limi‐ tation responsibility for damages resulting from the use of or reliance on this work. Use of the information and instructions contained in this work is at your own risk. If any code samples or other technology this work contains or describes is subject to open source licenses or the intellectual property rights of others, it is your responsi‐ bility to ensure that your use thereof complies with such licenses and/or rights. -
Conceptual Architecture Patterns
HASSO - PLATTNER - INSTITUT für Softwaresystemtechnik an der Universität Potsdam Conceptual Architecture Patterns Technische Berichte des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam Technische Berichte des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam 2 Conceptual Architecture Patterns: FMC-based Representations Bernhard Gröne and Frank Keller (eds.) April 2004 Bibliografische Information Der Deutschen Bibliothek Die Deutsche Bibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliografie; detaillierte bibliografische Daten sind im Internet über http://dnb.ddb.de abrufbar. Die Reihe Technische Berichte des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam erscheint aperiodisch. Herausgeber: Professoren des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam Redaktion Bernhard Gröne und Frank Keller EMail {bernhard.groene, frank.keller}@hpi.uni-potsdam.de Vertrieb: Universitätsverlag Potsdam Postfach 60 15 53 14415 Potsdam Fon +49 (0) 331 977 4517 Fax +49 (0) 331 977 4625 e-mail: [email protected] http://info.ub.uni-potsdam.de/verlag.htm Druck allprintmedia gmbH Blomberger Weg 6a 13437 Berlin email: [email protected] © Hasso-Plattner-Institut für Softwaresystemtechnik an der Universität Potsdam, 2004 Dieses Manuskript ist urheberrechtlich geschützt. Es darf ohne vorherige Genehmigung der Herausgeber nicht vervielfältigt werden. Heft 2 (2004) ISBN 3-935024-98-3 ISSN 1613-5652 Conceptual Architecture Patterns: FMC–based Representations Bernhard Gröne and Frank Keller (editors) Research assistants of the chair “Modeling of Software–intensive Systems” Hasso–Plattner–Institute for Software Systems Engineering P.O. Box 900460, 14440 Potsdam, Germany E-mail: {bernhard.groene, frank.keller}@hpi.uni-potsdam.de Abstract This document presents the results of the seminar “Conceptual Architecture Patterns” of the winter term 2002 in the Hasso–Plattner–Institute. -
Middleware Architecture with Patterns and Frameworks
Middleware Architecture with Patterns and Frameworks Sacha Krakowiak Distributed under a Creative Commons license http://creativecommons.org/licenses/by-nc-nd/3.0/ February 27, 2009 Contents Preface ix References........................................ x 1 An Introduction to Middleware 1-1 1.1 Motivation for Middleware . 1-1 1.2 CategoriesofMiddleware . 1-6 1.3 A Simple Instance of Middleware: Remote Procedure Call . ......... 1-7 1.3.1 Motivations and Requirements . 1-8 1.3.2 Implementation Principles . 1-9 1.3.3 Developing Applications with RPC . 1-11 1.3.4 SummaryandConclusions. .1-13 1.4 Issues and Challenges in Middleware Design . 1-14 1.4.1 DesignIssues ...............................1-14 1.4.2 Architectural Guidelines . 1-15 1.4.3 Challenges ................................1-17 1.5 HistoricalNote .................................. 1-18 References........................................1-19 2 Middleware Principles and Basic Patterns 2-1 2.1 ServicesandInterfaces . 2-1 2.1.1 Basic Interaction Mechanisms . 2-2 2.1.2 Interfaces ................................. 2-3 2.1.3 Contracts and Interface Conformance . 2-5 2.2 ArchitecturalPatterns . 2-9 2.2.1 Multilevel Architectures . 2-9 2.2.2 DistributedObjects . .. .. .. .. .. .. .. .2-12 2.3 Patterns for Distributed Object Middleware . 2-15 2.3.1 Proxy ...................................2-15 2.3.2 Factory ..................................2-16 2.3.3 Adapter..................................2-18 2.3.4 Interceptor ................................2-19 2.3.5 Comparing and Combining Patterns . 2-20 2.4 Achieving Adaptability and Separation of Concerns . ..........2-21 2.4.1 Meta-ObjectProtocols. 2-21 2.4.2 Aspect-Oriented Programming . 2-23 ii CONTENTS 2.4.3 PragmaticApproaches. .2-25 2.4.4 ComparingApproaches . -
Adaptivity of Business Process
ICONS 2013 : The Eighth International Conference on Systems Adaptivity of Business Process Charif Mahmoudi Fabrice Mourlin Laboratory of Algorithms, Complexity and Logics, Laboratory of Algorithms, Complexity and Logics, Paris 12th University Paris 12th University Créteil, France Creteil, France [email protected] [email protected] Abstract— Enterprise service bus is a software architecture local services is less costly in a number of messages than a middleware used for implementing the interaction between business process using remote services. Blockings are also software applications in a Service Oriented Architecture. We less numerous, and, therefore, the execution of a business have developed a strategy to dynamically manage business process is more efficient. processes. Administrators of service bus need to reconfigure This remark highlights the dependencies between two sites where the business processes are placed. This evolution concepts, the location of business processes and its own has to be done during execution of service through the bus. We definition. The designer should not consider his work in the ensure the availability of process definition. Moreover, placement constraints. In addition, the administrator cannot business process can also be autonomous. This means a process take into account all the dependencies of a process definition which is able to move from one site to another one, where the to find a better placement. Also, our second point is: how business process engine is installed. This provides another approach to design business process. With our "mobile process separate the two. These conclusions led us to consider an migration" template, we separate two concerns, on one side initial configuration of business processes is not satisfactory.