IBM systems journal最新文献_第7页

Business services as communication patterns: A work practice approach for analyzing service encounters 作为通信模式的业务服务：一种分析服务遭遇的工作实践方法

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.471.0129

R. J. Clarke;A. G. Nilsson

{"title":"Business services as communication patterns: A work practice approach for analyzing service encounters","authors":"R. J. Clarke;A. G. Nilsson","doi":"10.1147/sj.471.0129","DOIUrl":"https://doi.org/10.1147/sj.471.0129","url":null,"abstract":"In this paper, we describe an approach to business processes and services which views work practices as recurrent patterns of communication called genres. Although defining work practices in this way is unorthodox, it provides two major advantages. First, the communication resources employed by the parties engaging in a service transaction can be clearly described, understood, and communicated. Business processes and services can be differentiated on the basis of the structural and functional arrangement of their constituent genres. This provides a view of a business process or service that is technology-independent. Second, using this approach means that work practices are defined contextually—an important consideration when trying to understand how business processes and services will influence organizations. Because genres are represented using directed graphs, prototypes can be developed to assist during the analysis of existing services and the design of new ones. Structural and functional change of genres can be used to reveal how a specific service is evolving within an organization. This enables us to determine if business demands have changed, something that is difficult to achieve using conventional service engineering approaches.","PeriodicalId":55035,"journal":{"name":"IBM systems journal","volume":"47 1","pages":"129-141"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1147/sj.471.0129","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67993179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Pulsar: A resource-control architecture for time-critical service-oriented applications Pulsar：用于时间关键型面向服务应用程序的资源控制体系结构

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.472.0265

M. Astley;S. Bhola;M. J. Ward;K. Shagin;H. Paz;G. Gershinsky

{"title":"Pulsar: A resource-control architecture for time-critical service-oriented applications","authors":"M. Astley;S. Bhola;M. J. Ward;K. Shagin;H. Paz;G. Gershinsky","doi":"10.1147/sj.472.0265","DOIUrl":"https://doi.org/10.1147/sj.472.0265","url":null,"abstract":"The complexity of real-time systems is growing extremely rapidly, as they move from isolated devices to multilevel networked systems. Traditional methodologies for developing and managing these systems are not scaling to meet the requirements of a new generation of distributed applications. While developers of complex real-time applications are looking to service-oriented architecture to address their needs for ease of development and flexibility of integration, current software infrastructures for service-oriented applications do not address the issue of predictable latency for the applications they host. In this paper, we present Pulsar, a resource-control architecture for managing the end-to-end latency of a set of distributed, time-critical applications. The primary entity of Pulsar is called a controller, which regulates an aspect of resource allocation or scheduling policy. Controllers utilize policy configurations, which may include latency targets to be achieved or resource allocations to be honored, and interact with resource allocators and schedulers (e.g., thread schedulers, memory allocators, or bandwidth reservation mechanisms) to effect local policy. Controllers also provide feedback on how well they are executing a policy. Pulsar includes an application model which captures resource-sensitive behavior and requirements and is independent of high-level programming models and application programming interfaces.","PeriodicalId":55035,"journal":{"name":"IBM systems journal","volume":"47 2","pages":"265-280"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1147/sj.472.0265","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68013562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Message from the Vice President, Solutions & Global Technical Sales, IBM Global Sales & Distribution IBM全球销售与分销解决方案与全球技术销售副总裁致辞

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/SJ.2008.5386518

Holly D. Unland

引用次数: 3

IBM Parallel Sysplex clustering: Technology options for continuous availability IBM Parallel Sysplex集群：实现连续可用性的技术选项

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/SJ.2008.5386514

C. Jews;R. Ahmad;D. H. Surman

引用次数: 5

Designing a service science discipline with discipline 用学科设计服务科学学科

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.471.0015

R. J. Glushko

引用次数: 92

Availability analysis of blade server systems 刀片服务器系统的可用性分析

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/SJ.2008.5386524

W. E. Smith;K. S. Trivedi;L. A. Tomek;J. Ackaret

{"title":"Availability analysis of blade server systems","authors":"W. E. Smith;K. S. Trivedi;L. A. Tomek;J. Ackaret","doi":"10.1147/SJ.2008.5386524","DOIUrl":"https://doi.org/10.1147/SJ.2008.5386524","url":null,"abstract":"The successful development and marketing of commercial high-availability systems requires the ability to evaluate the availability of systems. Specifically, one should be able to demonstrate that projected customer requirements are met, to identify availability bottlenecks, to evaluate and compare different configurations, and to evaluate and compare different designs. For evaluation approaches based on analytic modeling, these systems are often sufficiently complex so that state-space methodsare not effective due to the large number of states, whereas combinatorial methods are inadequate for capturing all significant dependencies. The two-level hierarchical decomposition proposed here is suitable for the availability modeling of blade server systems such as IBM BladeCenter®, a commercial, high-availability multicomponent system comprising up to 14 separate blade servers and contained within a chassis that provides shared subsystems such as power and cooling. This approach is based on an availability model that combines a high-level fault tree model with a number of lowerlevel Markov models. It is used to determine component level contributions to downtime as well as steady-state availability for both standalone and clustered blade servers. Sensitivity of the results to input parameters is examined, extensions to the models are described, and availability bottlenecks and possible solutions are identified.","PeriodicalId":55035,"journal":{"name":"IBM systems journal","volume":"47 4","pages":"621-640"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1147/SJ.2008.5386524","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68034520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 103

Patterns of innovation in service industries 服务业创新模式

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.471.0115

I. Miles

{"title":"Patterns of innovation in service industries","authors":"I. Miles","doi":"10.1147/sj.471.0115","DOIUrl":"https://doi.org/10.1147/sj.471.0115","url":null,"abstract":"The diversity of service activities means that service innovations and innovation processes take various forms. In this paper, we use input/output and other data to depict how service industries vary in such areas as products, markets, work organization, and technological characteristics—most being very distinctive from primary industries (i.e., extractive industries such as agriculture, fisheries, forestry, mining, petroleum, quarrying, and the like) and secondary industries (i.e., manufacturing, construction, and utilities). Innovation survey data indicates that some service organizations behave very much like high-technology manufacturing. This is especially true of technology-based, knowledge-intensive business services (T-KIBS). Distinctive innovation patterns are displayed by KIBS based more on professional knowledge and by large network-based service firms, while many smaller service firms conform to a supplier-driven pattern. Only a small segment of service innovation conforms to the typical manufacturing-based model, in which innovation is largely organized and led by formal research and development (R&D) departments and production engineering. Project management and on-the-job innovation are common ways of organizing service innovation. Innovation policy and management have to be much more than R&D policy and R&D management: This is recognized by some national governments and in some business schools, but the full implications of a service-dominant logic are still rarely found.","PeriodicalId":55035,"journal":{"name":"IBM systems journal","volume":"47 1","pages":"115-128"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1147/sj.471.0115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67993181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 249

Patterns for real-world-aware and real-time solutions 了解真实世界和实时解决方案的模式

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.472.0335

F. N. Parr;L. Yusuf

引用次数: 4

Accounting for platform effects in the design of real-time software using model-based methods 使用基于模型的方法计算实时软件设计中的平台效应

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.472.0309

B. Selic

引用次数: 10

Increasing business flexibility and SOA adoption through effective SOA governance 通过有效的SOA治理提高业务灵活性和SOA采用率

IBM systems journal Pub Date : 2008-01-01 DOI: 10.1147/sj.473.0473

R. Varadan;K. Channabasavaiah;S. Simpson;K. Holley;A. Allam

{"title":"Increasing business flexibility and SOA adoption through effective SOA governance","authors":"R. Varadan;K. Channabasavaiah;S. Simpson;K. Holley;A. Allam","doi":"10.1147/sj.473.0473","DOIUrl":"https://doi.org/10.1147/sj.473.0473","url":null,"abstract":"Most organizations understand the need to address service-oriented architecture (SOA) governance during SOA adoption. An abundance of information is available defining SOA governance: what it is and what it is not, why it is important, and why organizational change must be addressed. Increasingly business and information technology (IT) stakeholders, executive and technical, acknowledge that SOA governance is essential for realizing the benefits of SOA adoption: building more-flexible IT architectures, improving the fusion between business and IT models, and making business processes more flexible and reusable. However, what is not clear is how an organization gets started. What works and what does not work? More importantly, what is required in SOA governance for organizations to see sustained and realized benefits? This paper describes a framework, the SOA governance model, that can be used to scope and identify what is required for effective SOA governance. Based on client experiences, we describe four approaches to getting started with SOA governance, and we describe how to use these four approaches to make shared services (services used by two or more consumers), reuse, and flexibility a reality. We also discuss lessons learned in using these four approaches.","PeriodicalId":55035,"journal":{"name":"IBM systems journal","volume":"47 3","pages":"473-488"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1147/sj.473.0473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68016258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 70