QUASOSS '10最新文献

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An integrated tool for trade-off analysis of quality-of-service attributes 服务质量属性权衡分析的集成工具

QUASOSS '10 Pub Date : 2010-10-04 DOI: 10.1145/1858263.1858266

L. Hatvani, A. Jansen, C. Seceleanu, P. Pettersson

引用次数: 6

Using quality of service bounds for effective multi-objective software architecture optimization 利用服务质量边界进行有效的多目标软件体系结构优化

QUASOSS '10 Pub Date : 2010-10-04 DOI: 10.1145/1858263.1858265

Qais Noorshams, Annelies Martens, Ralf H. Reussner

{"title":"Using quality of service bounds for effective multi-objective software architecture optimization","authors":"Qais Noorshams, Annelies Martens, Ralf H. Reussner","doi":"10.1145/1858263.1858265","DOIUrl":"https://doi.org/10.1145/1858263.1858265","url":null,"abstract":"Quantitative prediction of non-functional properties, such as performance, reliability, and cost, of software architectures supports systematic software engineering. Even though there usually is a rough idea on bounds for quality of service, the exact required values may be unclear and subject to tradeoffs. Designing architectures that exhibit such good tradeoff between multiple quality attributes is hard. Even with a given functional design, many degrees of freedom in the software architecture (e.g. component deployment or server configuration) span a large design space. Automated approaches search the design space with multi-objective meta-heuristics such as evolutionary algorithms. However, as quality prediction for a single architecture is computationally expensive, these approaches are time consuming. In this work, we enhance an automated improvement approach to take into account bounds for quality of service in order to focus the search on interesting regions of the objective space, while still allowing trade-offs after the search. To validate our approach, we applied it to an architecture model of a component-based business information system. We compared the search to an unbounded search by running the optimization 8 times, each investigating around 800 candidates. The approach decreases the time needed to find good solutions in the interesting regions of the objective space by more than 35% on average.","PeriodicalId":436662,"journal":{"name":"QUASOSS '10","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126295000","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: 12

Performance-driven stepwise refinement of component-based architectures 基于组件的体系结构的性能驱动的逐步细化

QUASOSS '10 Pub Date : 2010-10-04 DOI: 10.1145/1858263.1858269

Lucia Happe, Barbora Buhnova

{"title":"Performance-driven stepwise refinement of component-based architectures","authors":"Lucia Happe, Barbora Buhnova","doi":"10.1145/1858263.1858269","DOIUrl":"https://doi.org/10.1145/1858263.1858269","url":null,"abstract":"Detailed models of component-based software architectures are crucial for the accurate evaluation and prediction of systems quality attributes (e.g., performance) during early development stages. Ideally, the increased complexity of such models should not incur additional modelling effort for developers. Specific incremental model refinements called completions provide a systematic approach to reduce the modelling effort. Completions transparently integrate low-level details that affect system's quality (e.g. performance impact of middleware configuration) into component-based architectural models, using model-to-model transformations. When multiple completions are to be applied, the necessary model transformations are executed in a chain. In such scenarios, conflicts between different completions are likely. In current practice, the conflicts are supposed to be resolved by software architects, who decide on the suitable transformation order manually. However, this approach is time-consuming, can be error-prone, and is likely to result in suboptimal designs. In this paper, we aim to automate the resolution of conflicts. We define a technique to identify and resolve possible conflicts. The technique locally optimises the completions order, based on its validity and quality attributes semantics. We validate our approach by applying it to an architecture model of a component-based business information system and analyse the impact of different completions orders and the complexity of possible conflicts.","PeriodicalId":436662,"journal":{"name":"QUASOSS '10","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128671789","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: 1