2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems最新文献

An architectural pattern for enterprise level monitoring tools 企业级监视工具的体系结构模式

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049035

O. S. Ligaarden, M. S. Lund, Atle Refsdal, Fredrik Seehusen, K. Stølen

引用次数: 9

Modeling the performance of Ultra-Large-Scale systems using layered simulations 利用分层仿真技术对超大规模系统的性能进行建模

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049040

King Chun Foo, Z. Jiang, Bram Adams, A. Hassan, Ying Zou, Kim Martin, P. Flora

{"title":"Modeling the performance of Ultra-Large-Scale systems using layered simulations","authors":"King Chun Foo, Z. Jiang, Bram Adams, A. Hassan, Ying Zou, Kim Martin, P. Flora","doi":"10.1109/MESOCA.2011.6049040","DOIUrl":"https://doi.org/10.1109/MESOCA.2011.6049040","url":null,"abstract":"The backbone of cloud computing platforms like Amazon S3 and Salesforce is formed by Ultra-Large-Scale (ULS) systems, i.e., complex, globally distributed infrastructure consisting of heterogeneous sets of software and hardware nodes. To ensure that a ULS system can scale to handle increasing service demand, it is important to understand the system's performance behaviour, for example to pro-actively plan for hardware upgrades. A good performance model should address concerns from all stakeholders at the level appropriate to their knowledge, interest, and experience. However, this is not straightforward, since stakeholders of ULS systems have a wide range of backgrounds and concerns: software developers are more interested in the performance of individual software components in the system, whereas managers are concerned about the performance of the entire system in different configurations. In this paper, we adapt the “4+1 View” model for software architecture to performance analysis models by building simulation models with multiple layers of abstraction. As a proof-of-concept, we conducted case studies on an open source RSS (Really Simple Syndication) Cloud system that actively delivers notifications of newly published content to subscribers, and on a hypothetical, industry-inspired performance monitor for ULS systems. We show that our layered simulation models are effective in identifying performance bottlenecks and optimal system configurations, balancing across performance objectives.","PeriodicalId":305930,"journal":{"name":"2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132873971","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: 4

On supporting dynamic web service selection with histogramming 用直方图支持动态web服务选择

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049032

A. Pahlevan, S. Chester, Alex Thomo, H. Müller

引用次数: 3

Optimizing run-time SOA governance through context-driven SLAs and dynamic monitoring 通过上下文驱动的sla和动态监控优化运行时SOA治理

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049036

Norha M. Villegas, H. Müller, Gabriel Tamura

{"title":"Optimizing run-time SOA governance through context-driven SLAs and dynamic monitoring","authors":"Norha M. Villegas, H. Müller, Gabriel Tamura","doi":"10.1109/MESOCA.2011.6049036","DOIUrl":"https://doi.org/10.1109/MESOCA.2011.6049036","url":null,"abstract":"End-users increasingly demand the provisioning of secure, scalable, reliable, flexible, resilient, and cost-efficient infrastructures, platforms, and software. However, the preservation of these properties, particularly in SOA and cloud environments, is extremely affected by distributed, heterogeneous, transient, and volatile context information. We envision the implementation of governance feedback loops, an innovative approach that equips service-oriented systems with run-time governance capabilities able to control the fulfillment of service level agreements (SLA) under changing execution environments. However, the effectiveness of our approach depends on the capability of governance infrastructures to guarantee the consistency between monitoring strategies, governance objectives, and context situations. To advance our vision, this paper proposes (i) contextual RDF graphs, a machine-readable specification of monitoring requirements that enable governance feedback loops with dynamic context monitoring capabilities; and (ii) context-driven SLAs, an extension of SLAs where context requirements are explicitly mapped to service level objectives (SLO) to optimize the run-time control of contracted obligations.","PeriodicalId":305930,"journal":{"name":"2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128787843","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: 19

Maintaining and evolving Service Level Agreements: Motivation and case study 维护和发展服务水平协议:动机和案例研究

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049039

Michael Smit, Eleni Stroulia

{"title":"Maintaining and evolving Service Level Agreements: Motivation and case study","authors":"Michael Smit, Eleni Stroulia","doi":"10.1109/MESOCA.2011.6049039","DOIUrl":"https://doi.org/10.1109/MESOCA.2011.6049039","url":null,"abstract":"Inter-organization service-oriented compositions are governed by Service Level Agreements (SLAs). While the software is maintained and evolved in response to changing business requirements or technology, the governing SLA and software configuration designed to meet this SLA do not always change in step. SLAs are negotiated and may have legal standing, which makes their maintenance expensive and time consuming. If an SLA is established that meets the requirements of the service consumer, changing the software without updating the configuration and/or the SLA may result in unmet requirements and reduced satisfaction. This paper begins by examining the business perspective on SLAs as a guide and motivation to maintaining SLAs. A simulation-driven approach to updating a configuration in step with ongoing maintenance efforts is presented. The approach is illustrated using a case study, where we examine how a configuration is updated in two maintenance scenarios: one where the application is migrated to a cloud computing platform, and another where it is migrated to use a distributed computing platform. Our approach suggests configurations that maintain existing performance levels.","PeriodicalId":305930,"journal":{"name":"2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124452870","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: 3

Intermediate SOA maintenance and evolution 中间SOA维护和发展

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049038

N. Chapin

引用次数: 0

Cloud software upgrades: Challenges and opportunities 云软件升级:挑战与机遇

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049037

Iulian Neamtiu, T. Dumitras

引用次数: 42

A data-focused perspective on SOA and cloud computing: The utility of patterns in redevelopment 以数据为中心的SOA和云计算视角:模式在再开发中的效用

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049031

Peter H. Aiken

引用次数: 0

A declarative approach to hardening services against QoS vulnerabilities 一种针对QoS漏洞加强服务的声明性方法

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-10-20 DOI: 10.1109/MESOCA.2011.6049034

Young-Woo Kwon, E. Tilevich

引用次数: 2

Understanding Service-Oriented systems using dynamic analysis 使用动态分析理解面向服务的系统

2011 International Workshop on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems Pub Date : 2011-09-26 DOI: 10.1109/MESOCA.2011.6049033

Tiago Espinha, A. Zaidman, H. Groß

引用次数: 6