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A software architecture centric engineering approach for Internetware 被引量:37
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作者 MEI Hong HUANG Gang ZHAO Haiyan JIAO Wenpin 《Science in China(Series F)》 2006年第6期702-730,共29页
As a new software paradigm evolved by the Internet, Internetware brings many challenges for the traditional software development methods and techniques. Though architecture-based component composition (ABC) approach... As a new software paradigm evolved by the Internet, Internetware brings many challenges for the traditional software development methods and techniques. Though architecture-based component composition (ABC) approach is originated in the traditional software paradigm, it supports the engineering of Internetware effectively due to its philosophy, rationales and mechanisms. ABC has three major contributions to the en- gineering of Internetware in detail. First, the feature oriented domain modeling method can structure the "disordered" "software entities" to "ordered Internetware" bottom-up in the problem space. Second, the architecture centric design and analysis method can support the development of self-adaptive Internetware. Third, the component operating platform is a reflective and self-adaptive middleware that not only provides Internetware with a powerful and flexible runtime infrastructure but also enables the self-adaptation of the structure and individual entities of Internetware. 展开更多
关键词 internetware COMPONENT software architecture feature model reflective middleware autonomous component
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Technical framework for Internetware: An architecture centric approach 被引量:33
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作者 YANG FuQing1,2, Lü Jian3,4 & MEI Hong1,2 1 Key Laboratory of High Confidence Software Technologies (Peking University), Ministry of Education, Beijing 100871, China 2 School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China +1 位作者 3 State Key Laboratory for Novel Software Technology, Nanjing 210093, China 4 Department of Computer Science and Technology, Nanjing University, Nanjing 210093, China 《Science in China(Series F)》 2008年第6期610-622,共13页
Being a new software paradigm evolved by the Internet, Internetware brings many challenges to the traditional software methods and techniques. Sponsored by the national basic research program (973), researchers in C... Being a new software paradigm evolved by the Internet, Internetware brings many challenges to the traditional software methods and techniques. Sponsored by the national basic research program (973), researchers in China have developed an architecture centric technical framework for the definition, incarnation and engineering of Internetware. First of all, a software model for Internetware is defined for what to be, including that Internetware entities should be packaged as components, behaving as agents, interoperating as services, collaborating in a structured and on demand manner, etc. Secondly, a middleware for Internetware is designed and implemented for how to be, including that Internetware entities are incarnated by runtime containers, structured collaborations are enabled by runtime software architecture, Internetware can be managed in a reflective and autonomic manner, etc. Thirdly, an engineering methodology for Internetware is proposed for how to do, including the way to develop Internetware entities and their collaborations by transforming and refining a set of software architectures which cover all the phases of software lifecycle, the way to identify and organize the disordered software assets by domain modeling, etc. 展开更多
关键词 internetware COMPONENT software architecture AGENT MIDDLEWARE
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A software architecture centric self-adaptation approach for Internetware 被引量:19
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作者 MEI Hong1,2, HUANG Gang1,2, LAN Ling1,2 & LI JunGuo1,2 1 Key Laboratory of High Confidence Software Technologies (Peking University), Ministry of Education, Beijing 100871, China 2 School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China 《Science in China(Series F)》 2008年第6期722-742,共21页
Being one of the basic features of Internetware, self-adaptation means that the software system can monitor its runtime state and behavior and adjust them when necessary according to pre-defined policies. Focusing on ... Being one of the basic features of Internetware, self-adaptation means that the software system can monitor its runtime state and behavior and adjust them when necessary according to pre-defined policies. Focusing on the three fundamental issues of self-adaptation, including the scope, operability and trustworthiness, a software architecture (SA) centric approach for Internetware's self-adaptation is presented in this paper. All of the self-adaptive actions, i.e. monitoring, analyzing, planning and executing, are performed based on SA. In detail, runtime state and behavior of Internetware are represented and changed in the form of runtime soft- ware architecture. The knowledge for self-adaptation is captured, organized and reasoned in the form of SA so that automatic analysis and decision-making are achieved. 展开更多
关键词 internetware SELF-ADAPTATION software architecture MIDDLEWARE
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On environment-driven software model for Internetware 被引量:17
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作者 Lǔ Jian MA XiaoXing TAO XianPing CAO Chun HUANG Yu YU Ping 《Science in China(Series F)》 2008年第6期683-721,共39页
Internetware is envisioned as a general software paradigm for the application style of resources integration and sharing in the open, dynamic and uncertain platforms such as the Internet. Continuing the agent-based In... Internetware is envisioned as a general software paradigm for the application style of resources integration and sharing in the open, dynamic and uncertain platforms such as the Internet. Continuing the agent-based Internetware model presented in a previous paper, in this paper, after an analysis of the behavioral patterns and the technical challenges of environment-driven applications, a software-structuring model is proposed for environment-driven Internetware applications. A series of explorations on the enabling techniques for the model, especially the modeling, management and utilization of context information are presented. Several proto-typical systems have also been built to prove the concepts and evaluate the techniques. These research efforts make a further step toward the Internetware paradigm by providing an initial framework for the construction of context-aware and self-adaptive software application systems in the open network environment. 展开更多
关键词 software engineering internetware CONTEXT-AWARENESS SELF-ADAPTATION
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Internetware:An Emerging Software Paradigm for Internet Computing 被引量:5
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作者 梅宏 刘譞哲 《Journal of Computer Science & Technology》 SCIE EI CSCD 2011年第4期588-599,共12页
The Internet is undergoing a tremendous change towards the globalized computing environment. Due to the open, dynamic and uncontrollable natures of the Internet, software running in the Internet computing environment ... The Internet is undergoing a tremendous change towards the globalized computing environment. Due to the open, dynamic and uncontrollable natures of the Internet, software running in the Internet computing environment has some new features, which bring challenges to current software technologies in terms of software model, software operating platform, software engineering approaches and software quality. Researchers in China have proposed the term "Internetware" to present the emerging software paradigm. Sponsored by the National Basic Research 973 Program, several research practices have been done on the Internetware in the past decade. This paper summarizes the progress and status of the Internetware researches. A technical solution framework for the Internetware paradigm is proposed from four aspects: the Internetware software model defines what the Internetware is to be; the Internetware middleware determines how to run the Internetware applications; the engineering methodology determines how to develop the Internetware applications; the Internetware quality assurance determines how well the Internetware applications can perform. The paper also discusses the ongoing research issues and future trends of Internetware. 展开更多
关键词 software engineering internetware Internet computing
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An application-semantics-based relaxed transaction model for internetware 被引量:6
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作者 HUANG Tao DING Xiaoning WEI Jun 《Science in China(Series F)》 2006年第6期774-791,共18页
An internetware application is composed by existing individual services, while transaction processing is a key mechanism to make the composition reliable. The existing research of transactional composite service (TCS... An internetware application is composed by existing individual services, while transaction processing is a key mechanism to make the composition reliable. The existing research of transactional composite service (TCS) depends on the analysis to composition structure and exception handling mechanism in order to guarantee the relaxed atomicity. However, this approach cannot handle some application-specific requirements and causes lots of unnecessary failure recoveries or even aborts. In this paper, we propose a relaxed transaction model, including system mode, relaxed atomicity criterion, static checking algorithm and dynamic enforcement algorithm. Users are able to define different relaxed atomicity constraint for different TCS according to application-specific requirements, including acceptable configurations and the preference order. The checking algorithm determines whether the constraint can be guaranteed to be satisfied. The enforcement algorithm monitors the execution and performs transaction management work according to the constraint. Compared to the existing work, our approach can handle complex application requirements, avoid unnecessary failure recoveries and perform the transaction management work automatically. 展开更多
关键词 internetware service composition relaxed atomicity relaxed transaction mode.
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浅论软件技术发展 被引量:163
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作者 杨芙清 梅宏 +1 位作者 吕建 金芝 《电子学报》 EI CAS CSCD 北大核心 2002年第12A期1901-1906,共6页
本文以软件基本模型的发展为主线,对软件技术的历史和现状进行了回顾;分析了Internet的基本特征及其对软件技术带来的需求和挑战;总结提炼出Internet环境下软件的新形态——网构软件(Internetware),探讨了其不同于传统软件的主要特性和... 本文以软件基本模型的发展为主线,对软件技术的历史和现状进行了回顾;分析了Internet的基本特征及其对软件技术带来的需求和挑战;总结提炼出Internet环境下软件的新形态——网构软件(Internetware),探讨了其不同于传统软件的主要特性和主要研究方向. 展开更多
关键词 软件技术 INTERNET 网构软件 因特网 internetware 回顾
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Software techniques for Internet Computing:Current situation and future trend 被引量:4
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作者 MEI Hong LIU XuanZhe 《Chinese Science Bulletin》 SCIE EI CAS 2010年第31期3510-3516,共7页
The fast development of the Internet has extended wider space for Information and Communications Technology(ICT),and it has brought a series of challenges for traditional software theories,models,approaches and techno... The fast development of the Internet has extended wider space for Information and Communications Technology(ICT),and it has brought a series of challenges for traditional software theories,models,approaches and technologies.This paper looks back some popular Internet-based new computing paradigms and application schemas,discusses the current status and the future trend of software technologies for Internet Computing,including topics of software model,software runtime supporting platform,software development methodologies and software quality measurement and assurance. 展开更多
关键词 INTERNET software technique software methodology internetware
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A Trust-Based Approach to Estimating the Confidence of the Software System in Open Environments 被引量:1
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作者 徐锋 潘静 陆文 《Journal of Computer Science & Technology》 SCIE EI CSCD 2009年第2期373-385,共13页
Emerging with open environments, the software paradigms, such as open resource coalition and Internetware, present several novel characteristics including user-centric, non-central control, and continual evolution. Th... Emerging with open environments, the software paradigms, such as open resource coalition and Internetware, present several novel characteristics including user-centric, non-central control, and continual evolution. The goal of obtaining high confidence on such systems is more difficult to achieve. The general developer-oriented metrics and testing-based methods which are adopted in the traditional measurement for high confidence software seem to be infeasible in the new situation. Firstly, the software development is changed from the developer-centric to user-centric, while user's opinions are usually subjective, and cannot be generalized in one objective metric. Secondly, there is non-central control to guarantee the testing on components which formed the software system, and continual evolution makes it impossible to test on the whole software system. Therefore, this paper proposes a trust-based approach that consists of three sequential sub-stages: 1) describing metrics for confidence estimation from users; 2) estimating the confidence of the components based on the quantitative information from the trusted recommenders; 3) estimating the confidence of the whole software system based on the component confidences and their interactions, as well as attempts to make a step toward a reasonable and effective method for confidence estimation of the software system in open environments. 展开更多
关键词 TRUST CONFIDENCE open resource coalition internetware software architecture
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Automatically Identifying Calling-Prone Higher-Order Functions of Scala Programs to Assist Testers
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作者 Yi-Sen Xu Xiang-Yang Jia +2 位作者 Fan Wu Lingbo Li Ji-Feng Xuan 《Journal of Computer Science & Technology》 SCIE EI CSCD 2020年第6期1278-1294,共17页
For the rapid development of internetware, functional programming languages, such as Haskell and Scala, can be used to implement complex domain-specific applications. In functional programming languages, a higher-orde... For the rapid development of internetware, functional programming languages, such as Haskell and Scala, can be used to implement complex domain-specific applications. In functional programming languages, a higher-order function is a function that takes functions as parameters or returns a function. Using higher-order functions in programs can increase the generality and reduce the redundancy of source code. To test a higher-order function, a tester needs to check the requirements and write another function as the test input. However, due to the complex structure of higher-order functions, testing higher-order functions is a time-consuming and labor-intensive task. Testers have to spend an amount of manual effort in testing all higher-order functions. Such testing is infeasible if the time budget is limited, such as a period before a project release. In practice, not every higher-order function is actually called. We refer to higher-order functions that are about to be called as calling-prone ones. Calling-prone higher-order functions should be tested first. In this paper, we propose an automatic approach, namely PHOF, which predicts whether a higher-order function of Scala programs will be called in the future, i.e., identifying calling-prone higher-order functions. Our approach can assist testers to reduce the number of higher-order functions of Scala programs under test. In PHOF, we extracted 24 features from source code and logs to train a predictive model based on known higher-order function calls. We empirically evaluated our approach on 4832 higher-order functions from 27 real-world Scala projects. Experimental results show that PHOF based on the random forest algorithm and the Synthetic Minority Oversampling Technique Processing strategy (SMOTE) performs well in the prediction of calls of higher-order functions. Our work can be used to support the scheduling of limited test resources. 展开更多
关键词 higher-order function testing tool test management Scala program internetware
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