Stefan Tai – författare

Cloud service benchmarking can provide important, sometimes surprising insights into the quality of services and leads to a more quality-driven design and engineering of complex software architectures that use such services. Starting with a broad introduction to the field, this book guides readers step-by-step through the process of designing, implementing and executing a cloud service benchmark, as well as understanding and dealing with its results. It covers all aspects of cloud service benchmarking, i.e., both benchmarking the cloud and benchmarking in the cloud, at a basic level.The book is divided into five parts: Part I discusses what cloud benchmarking is, provides an overview of cloud services and their key properties, and describes the notion of a cloud system and cloud-service quality. It also addresses the benchmarking lifecycle and the motivations behind running benchmarks in particular phases of an application lifecycle. Part II then focuses on benchmark design by discussing key objectives (e.g., repeatability, fairness, or understandability) and defining metrics and measurement methods, and by giving advice on developing own measurement methods and metrics. Next, Part III explores benchmark execution and implementation challenges and objectives as well as aspects like runtime monitoring and result collection. Subsequently, Part IV addresses benchmark results, covering topics such as an abstract process for turning data into insights, data preprocessing, and basic data analysis methods. Lastly, Part V concludes the book with a summary, suggestions for further reading and pointers to benchmarking tools available on the Web.The book is intended for researchers and graduate students of computer science and related subjects looking for an introduction to benchmarking cloud services, but also for industry practitioners who are interested in evaluating the quality of cloud services or who want to assess key qualities of their own implementations through cloud-based experiments.

Cloud service benchmarking can provide important, sometimes surprising insights into the quality of services and leads to a more quality-driven design and engineering of complex software architectures that use such services. Starting with a broad introduction to the field, this book guides readers step-by-step through the process of designing, implementing and executing a cloud service benchmark, as well as understanding and dealing with its results. It covers all aspects of cloud service benchmarking, i.e., both benchmarking the cloud and benchmarking in the cloud, at a basic level.The book is divided into five parts: Part I discusses what cloud benchmarking is, provides an overview of cloud services and their key properties, and describes the notion of a cloud system and cloud-service quality. It also addresses the benchmarking lifecycle and the motivations behind running benchmarks in particular phases of an application lifecycle. Part II then focuses on benchmark design by discussing key objectives (e.g., repeatability, fairness, or understandability) and defining metrics and measurement methods, and by giving advice on developing own measurement methods and metrics. Next, Part III explores benchmark execution and implementation challenges and objectives as well as aspects like runtime monitoring and result collection. Subsequently, Part IV addresses benchmark results, covering topics such as an abstract process for turning data into insights, data preprocessing, and basic data analysis methods. Lastly, Part V concludes the book with a summary, suggestions for further reading and pointers to benchmarking tools available on the Web.The book is intended for researchers and graduate students of computer science and related subjects looking for an introduction to benchmarking cloud services, but also for industry practitioners who are interested in evaluating the quality of cloud services or who want to assess key qualities of their own implementations through cloud-based experiments.

EDO2000wasthesecondinternationalworkshoponsoftwareengineeringfor distributedobjectsystems. EDO2000wasacontinuationofEDO'99,the?rst workshopinthisseries,whichwasheldinconjunctionwithICSE'99. Distributedobjecttechnologies-asexempli?edbyCORBAandtheCORBA Services,COM+,EJB,andtheJ2EE-areincreasinglybeingadoptedbyvarious enterprisesasafundamentaltechnologyfortheirITinfrastructures. Asacon- quence,extensiveindustrypracticeofusingthetechnologiesisbeinggained. At thesametime,thetechnologiescontinuetoadvanceandnewfunctionalityand servicescontinuetobeintroduced. Inordertousetheexistingandemergingfunctionsofdistributedobjectte- nologiese?ectively,andtobettermeettoday'sdemandingbusinessandcomp- ingrequirements,advancesinsoftwareengineeringmethodsandtechniquesfor distributedobjectsarestronglyneeded. Softwareengineeringfordistributed- jectsistheresearchareathatprovidessolutionsofprovenpracticeforissuesand problemsthatareuniquetosystemsemployingdistributedobjecttechnologies. EDOis the premierworkshopthatbringstogetherthe researchandpractice communityofsoftwareengineeringfordistributedobjects. Wereceivedabout30submissionsandtheinternationalprogramcommittee selected15papers.Weclusteredacceptedpapersintosessionsandtheauthors ofthesepaperschampionedthesessionsandtookaleadinthediscussions. The workshoporganizersselectedparticularauthorstogivebriefpresentationsthat wereaimedtokicko?thediscussionineachsession. Theresultofthedi?erent sessionswassummarizedattheendoftheworkshopandthesesessionsummaries areincludedintheseproceedings. Alsointraditionwiththeworkshopseries,wehadaninvitedindustrialp- sentation. ThisyearWalterSchwarztalkedaboutanenterpriseapplication- tegrationprojectinthe?nancialdomainthatdeployedajudiciouscombination ofdistributedobjectmiddlewareandmarkuplanguagestoachieveintegration of?nancialtradingsystems. December2000 WolfgangEmmerichandStefanTai ProgramCo-chairs EDO2000 Program Committee Organization ConferenceChair: VolkerGruhn,UniversityofDortmund,Germany ProgramCo-chairs:WolfgangEmmerich,UniversityCollegeLondon,UK StefanTai,IBMWatsonResearch,U. S. A. OrganizingChair: PremDevanbu,UniversityofCalifornia,Davis,U. S. A. Referees JeanBezivin,UniversityofNantes,France GordonBlair,LancasterUniversity,UK AlfredBro..ckers,AdessoGmbH,Germany PeterCroll,UniversityofWollongong,Australia ElisabettaDiNitto,PolitecnicodiMilano,Italy AlfonsoFuggetta,PolitecnicodiMilano,Italy WilliHasselbring,UniversityofOldenburg,Germany JusukeHashimoto,NEC,Japan WalterHuersch,Zuehlke,Switzerland ArnoJacobson,INRIA,France MehdiJazayeri,TUVienna,Austria GertiKappel,UniversityofLinz,Austria WojtekKozacynski,Rational,USA BerndKr..amer,FUHagen,Germany Je?Magee,ImperialCollege,UK NenadMedvidovic,UniversityofSouthernCalifornia,USA NeilRoodyn,Cognitech,UK DavidRosenblum,UniversityofCaliforniaIrvine,USA IsabelleRouvellou,IBMWatsonResearch,USA WalterSchwarz,DGBank,Germany DirkSlama,ShinkaTechnologies,Germany DanielSteinmann,UBS,Switzerland AlfredStrohmeier,EPFL,Switzerland StanSutton,IBMWatsonResearch,USA Sponsoring Institutions AdessoGmbH,Germany IBMWatsonResearch,U. S. A. Z..uhlkeEngineeringGmbH,Germany Table of Contents Invited Industry Presentation ApplicationIntegrationwithCORBAandXML ...1 WalterSchwarz MiddlewareSelection MiddlewareSelection ...2 StanleyM. SuttonJr. AKeyTechnologyEvaluationCaseStudy: ApplyingaNewMiddlewareArchitectureontheEnterpriseScale ...8 MichaelGoedickeandUweZdun AnArchitectureProposalforEnterpriseMessageBrokers...27 J..ornGuySu..ssandMichaelMewes ResourceManagement ResourceManagement...43 StoneyJacksonandPremDevanbu TheImportanceofResourceManagementin EngineeringDistributedObjects...44 HectorA. Duran-LimonandGordonS. Blair TowardsDesigningDistributedSystemswithConDIL...61 FelixBub .. l Architectural Reasoning ArchitecturalReasoning ...81 WolfgangEmmerich AutomaticGenerationofSimulationModelsfortheEvaluation ofPerformanceandReliabilityofArchitecturesSpeci?edinUML ...83 MigueldeMiguel,ThomasLambolais,SophiePiekarec, St'ephaneBetg'e-BrezetzandJ'eromeP'equery ArchitecturalRe?ection: RealisingSoftwareArchitecturesviaRe?ectiveActivities...102 FrancescoTisato,AndreaSavigni,WalterCazzolaandAndreaSosio VIII Table of Contents UsingModelCheckingtoDetectDeadlocks inDistributedObjectSystems...116 NimaKaveh ComponentMetadataforSoftwareEngineeringTasks ...129 AlessandroOrso,MaryJeanHarroldandDavidRosenblum OnUsingStaticAnalysisinDistributedSystemTesting ...145 JessicaChen DistributedCommunication DistributedCommunication ...163 AlfonsoFuggetta,RushikeshK. JoshiandAnt'onioRitoSilva DistributedProxy:ADesignPatternfor theIncrementalDevelopmentofDistributedApplications...165 Ant'onioRitoSilva,FranciscoAssisRosa,TeresaGon,calves andMiguelAntunes ModelingwithFilterObjectsinDistributedSystems...182 RushikeshK. Joshi Advanced Transactions 2 AdvancedTransactions:Conceptsand X TSPrototype...188 ChristophLiebigandStefanTai IntegratingNoti?cationsandTransactions: 2 Conceptsand X TSPrototype...194 ChristophLiebig,MarcoMalvaandAlejandroBuchman AdvancedTransactionsinEnterpriseJavaBeans ...215 MarekProchazka Service Integration ServiceIntegration ...231 MichaelGoedicke CustomizableServiceIntegrationinWeb-EnabledEnvironments ...235 KostasKontogiannisandRichardGregory MigratingandSpecifyingServicesforWebIntegration...253 YingZouandKostasKontogiannis AuthorIndex...271 Application Integration with CORBA and XML Walter Schwarz OIHE,DGBankAG,AmPlatzderRepublik 60265Frankfurt,Germany walterschwarz@dgbank. de Abstract. WereportonexperiencethatwemadeintheTradingroom InteGRation Architecture project (Tigra). Tigra developed a d- tributedsystemarchitectureforintegratingdi?erent?nancialfront-o?ce tradingapplicationswithmiddle-andback-o?ceapplications. Wed- cuss the detailed requirements that led us to adopt a judicious c- bination of object-oriented middleware and markuplanguages.

Today, technologies for engineering and deployment of cooperative information systems have become increasingly critical in the construction of practically all types of large-scale distributed systems. Stimulating forums with different focuses are thus still in need of researchers and professionals from academia and industry to exchange ideas and experience and to establish working relationships. The idea to organize in China an academic event focusing on current topics in the field was born during the IFIP World Computer Congress 2000 that was held in Beijing, China. And here are the proceedings of EDCIS 2002! This volume comprises the technical research papers accepted for presentation at EDCIS 2002. Of the initial 159 paper submissions involving nearly 500 authors from 14 countries of all continents, 45 papers were carefully selected. Every paper was reviewed by at least three members of the program committee, and judged - cording to its technical merit and soundness, originality, significance, presentation quality, and relevance to the conference. The accepted papers cover various s- jects such as workflow technology, coordination technology, advanced trans- tions, groupware systems, semantic web, ontologies, mobile agents, and enterprise modeling, and enterprise application integration.

Today, technologies for engineering and deployment of cooperative information systems have become increasingly critical in the construction of practically all types of large-scale distributed systems. Stimulating forums with different focuses are thus still in need of researchers and professionals from academia and industry to exchange ideas and experience and to establish working relationships. The idea to organize in China an academic event focusing on current topics in the field was born during the IFIP World Computer Congress 2000 that was held in Beijing, China. And here are the proceedings of EDCIS 2002! This volume comprises the technical research papers accepted for presentation at EDCIS 2002. Of the initial 159 paper submissions involving nearly 500 authors from 14 countries of all continents, 45 papers were carefully selected. Every paper was reviewed by at least three members of the program committee, and judged - cording to its technical merit and soundness, originality, significance, presentation quality, and relevance to the conference. The accepted papers cover various s- jects such as workflow technology, coordination technology, advanced trans- tions, groupware systems, semantic web, ontologies, mobile agents, and enterprise modeling, and enterprise application integration.

The BPM Conference series has established itself as the premier forum for - searchersintheareaofbusinessprocessmanagementandprocess-awareinfor- tion systems. It has a record of attracting contributions of innovative research of the highest quality related to all aspects of business process management, including theory, frameworks, methods, techniques, architectures, systems, and empirical ?ndings. BPM 2010 was the 8th conference of the series. It took place September 14- 16, 2010 on the campus of Stevens Institute of Technology in Hoboken, New Jersey, USA—with a great view of Manhattan, New York. This volume c- tains 21 contributed research papers that were selected from 151 submissions. The thorough reviewing process (each paper was reviewed by three to ?ve P- gram Committee members followed in most cases by in-depth discussions) was extremely competitive with an acceptance rate of 14%. In addition to the c- tributed papers, these proceedings contain three short papers about the invited keynote talks. In conjunction with the main conference, nine international workshops took place the day before the conference. These workshops fostered the exchange of fresh ideas and experiences between active BPM researchers, and stimulated discussions on new and emerging issues in line with the conference topics. The proceedings with the papers of all workshops will be published in a separate volume of Springer’s Lecture Notes in Business Information Processing series. Beyond that, the conference also included a doctoral consortium, an industry program, ?reside chats, tutorials, panels, and demonstrations.

The BPM Conference series has established itself as the premier forum for - searchersintheareaofbusinessprocessmanagementandprocess-awareinfor- tion systems. It has a record of attracting contributions of innovative research of the highest quality related to all aspects of business process management, including theory, frameworks, methods, techniques, architectures, systems, and empirical ?ndings. BPM 2010 was the 8th conference of the series. It took place September 14- 16, 2010 on the campus of Stevens Institute of Technology in Hoboken, New Jersey, USA—with a great view of Manhattan, New York. This volume c- tains 21 contributed research papers that were selected from 151 submissions. The thorough reviewing process (each paper was reviewed by three to ?ve P- gram Committee members followed in most cases by in-depth discussions) was extremely competitive with an acceptance rate of 14%. In addition to the c- tributed papers, these proceedings contain three short papers about the invited keynote talks. In conjunction with the main conference, nine international workshops took place the day before the conference. These workshops fostered the exchange of fresh ideas and experiences between active BPM researchers, and stimulated discussions on new and emerging issues in line with the conference topics. The proceedings with the papers of all workshops will be published in a separate volume of Springer’s Lecture Notes in Business Information Processing series. Beyond that, the conference also included a doctoral consortium, an industry program, ?reside chats, tutorials, panels, and demonstrations.

Cloud Computing erlaubt die Bereitstellung und Nutzung von IT-Infrastruktur, von Plattformen und von Anwendungen aller Art als im Web elektronisch verfügbare Dienste. Cloud Computing folgt dabei den Ideen des Utility Computing, dh. es wird immer die aktuell benötigte Menge an Ressourcen zur Verfügung gestellt und abgerechnet. Dieses Buch will einen Überblick über Cloud Computing Architektur, Anwendungen und Entwicklung vermitteln. Ziel ist es, die Leserinnen und Leser auf einen einheitlichen Stand zu bringen und so eine gemeinsame Diskussionsgrundlage zu erreichen. Technische Vorkenntnisse sind nicht erforderlich.

Cloud computing is a buzz-word in today’s information technology (IT) that nobody can escape. But what is really behind it? There are many interpretations of this term, but no standardized or even uniform definition. Instead, as a result of the multi-faceted viewpoints and the diverse interests expressed by the various stakeholders, cloud computing is perceived as a rather fuzzy concept.With this book, the authors deliver an overview of cloud computing architecture, services, and applications.  Their aim is to bring readers up to date on this technology and thus to provide a common basis for discussion, new research, and novel application scenarios. They first introduce the foundation of cloud computing with its basic technologies, such as virtualization and Web services. After that they discuss the cloud architecture and its service modules. The following chapters then cover selected commercial cloud offerings (including Amazon Web Services and Google App Engine) and management tools, and present current related open-source developments (including Hadoop, Eucalyptus, and Open CirrusTM). Next, economic considerations (cost and business models) are discussed, and an evaluation of the cloud market situation is given. Finally, the appendix contains some practical examples of how to use cloud resources or cloud applications, and a glossary provides concise definitions of key terms.The authors’ presentation does not require in-depth technical knowledge. It is equally intended as an introduction for students in software engineering, web technologies, or business development, for professional software developers or system architects, and for future-oriented decision-makers like top executives and managers.

Cloud computing is a buzz-word in today’s information technology (IT) that nobody can escape. But what is really behind it? There are many interpretations of this term, but no standardized or even uniform definition. Instead, as a result of the multi-faceted viewpoints and the diverse interests expressed by the various stakeholders, cloud computing is perceived as a rather fuzzy concept.

With this book, the authors deliver an overview of cloud computing architecture, services, and applications.  Their aim is to bring readers up to date on this technology and thus to provide a common basis for discussion, new research, and novel application scenarios. They first introduce the foundation of cloud computing with its basic technologies, such as virtualization and Web services. After that they discuss the cloud architecture and its service modules. The following chapters then cover selected commercial cloud offerings (including Amazon Web Services and Google App Engine) and management tools, and present current related open-source developments (including Hadoop, Eucalyptus, and Open CirrusTM). Next, economic considerations (cost and business models) are discussed, and an evaluation of the cloud market situation is given. Finally, the appendix contains some practical examples of how to use cloud resources or cloud applications, and a glossary provides concise definitions of key terms.

The authors’ presentation does not require in-depth technical knowledge. It is equally intended as an introduction for students in software engineering, web technologies, or business development, for professional software developers or system architects, and for future-oriented decision-makers like top executives and managers.