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23rd International Conference on software engineering (ICSE 2001)

作者： Wallnau, K Carnegie Mellon Univ Inst Software Engn Pittsburgh PA 15213 USA

ISBN: (纸本)0769510507

The crucial role of software components in the construction of enterprise information management systems is now manifest. Notwithstanding this, the implication of software components on software engineering methods is not well understood by many practitioners. This tutorial explores the implications of two classes of component-based development efforts. First, those efforts where components are custom-developed and deployed onto a pre-fabricated component infrastructure such as Enterprise JavaBeans (TM), and second, efforts where commercial off-the-shelf components are integrated into an enterprise infrastructure upon which business logic can be deployed.

关键词： component-based software engineering analysis design software development process software method

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Half day tutorial in methods of component-based software engineering essential concepts and classroom experience 9

Half day tutorial in methods of component-based software eng...

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Proceedings of the 8th European software engineering conference held jointly with 9th ACM SIGSOFT international symposium on Foundations of software engineering

作者： Kurt Wallnau Scott Hissam Robert C. Seacord Software Engineering Institute Carnegie Mellon University Pittsburgh PA

ISBN: (纸本)9781581133905

The question of which design methods are appropriate for component-based development (CBD) is complicated by different understandings of the end objectives CBD. A further complication is different understandings of what is meant by "component." These differences lead to entirely distinct classes of design problem. The aim of this tutorial is to, first, outline the differing interpretations of CBD, and, second, to outline the required methodological responses to these design problems.

关键词： analysis design component-based software engineering software method software development process

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Selecting component sourcing options: A survey of software engineering's broader make-or-buy decisions

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INFORMATION AND software TECHNOLOGY 2019年 112卷 18-34页

作者： Borg, Markus Chatzipetrou, Panagiota Wnuk, Krzysztof Alegroth, Emil Gorschek, Tony Papatheocharous, Efi Shah, Syed Muhammad Ali Axelsson, Jakob RISE Res Inst Sweden AB Scheelevagen 17 SE-22370 Lund Sweden Blekinge Inst Technol Valhallavagen 1 SE-37141 Karlskrona Sweden Orebro Univ Sch Business SE-70182 Orebro Sweden iZettle Regeringsgatan 59 SE-11156 Stockholm Sweden

Context component-based software engineering (CBSE) is a common approach to develop and evolve contemporary software systems. When evolving a system based on components, make-or-buy decisions are frequent, i.e., whether to develop components internally or to acquire them from external sources. In CBSE, several different sourcing options are available: (1) developing software in-house, (2) outsourcing development, (3) buying commercial-off-the-shelf software, and (4) integrating open source software components. Objective: Unfortunately, there is little available research on how organizations select component sourcing options (CSO) in industry practice. In this work, we seek to contribute empirical evidence to CSO selection. Method: We conduct a cross-domain survey on CSO selection in industry, implemented as an online questionnaire. Results: based on 188 responses, we find that most organizations consider multiple CSOs during software evolution, and that the CSO decisions in industry are dominated by expert judgment. When choosing between candidate components, functional suitability acts as an initial filter, then reliability is the most important quality. Conclusion We stress that future solution-oriented work on decision support has to account for the dominance of expert judgment in industry. Moreover, we identify considerable variation in CSO decision processes in industry. Finally, we encourage software development organizations to reflect on their decision processes when choosing whether to make or buy components, and we recommend using our survey for a first benchmarking.

关键词： component-based software engineering Sourcing software architecture Decision making Survey

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component selection in software engineering - Which attributes are the most important in the decision process? 44

Component selection in Software Engineering - Which attribut...

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44th Euromicro Conference on software engineering and Advanced Applications (SEAA)

作者： Chatzipetrou, Panagiota Alegroth, Emil Papatheocharous, Efi Borg, Markus Gorschek, Tony Wnuk, Krzysztof Blekinge Inst Technol Software Res Engn Lab SERL SE-37179 Karlskrona Sweden RISE SICS AB Scheelevagen 17 SE-22370 Lund Sweden

ISBN: (纸本)9781538673836

component-based software engineering is a common approach to develop and evolve contemporary software systems where different component sourcing options are available: 1)software developed internally (in-house), 2)software developed outsourced, 3)Commercial of the shelf software, and 4) Open Source software. However, there is little available research on what attributes of a component are the most important ones when selecting new components. The object of the present study is to investigate what matters the most to industry practitioners during component selection. We conducted a cross-domain anonymous survey with industry practitioners involved in component selection. First, the practitioners selected the most important attributes from a list. Next, they prioritized their selection using the Hundred-Dollar ($100) test. We analyzed the results using Compositional Data Analysis. The descriptive results showed that Cost was clearly considered the most important attribute during the component selection. Other important attributes for the practitioners were: Support of the component, Longevity prediction, and Level of off-the-shelf fit to product. Next an exploratory analysis was conducted based on the practitioners' inherent characteristics. Nonparametric tests and biplots were used. It seems that smaller organizations and more immature products focus on different attributes than bigger organizations and mature products which focus more on Cost.

关键词： component-based software engineering Decision making Compositional Data Analysis Cumulative voting

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Contextual abstraction in a type system for component-based high performance computing platforms

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SCIENCE OF COMPUTER PROGRAMMING 2016年 132卷 96-128页

作者： de Carvalho Junior, Francisco Heron Rezende, Cenez Araujo Silva, Jefferson de Carvalho Al-Alam, Wagner Guimaraes Uchoa de Alencar, Joao Marcelo Univ Fed Ceara Ciencia Comp Fortaleza CE Brazil

HTS (Hash Type System) is a type system designed for component-based high performance computing (CBHPC) platforms, aimed at reconciling portability, modularity by separation of concerns, a high-level of abstraction and high performance. Portability and modularity are properties of component-based systems that have been extensively validated. For improving the performance of HPC applications, HTS introduces an automated approach for dynamically discovering, loading and binding parallel components tuned for the characteristics of the parallel computing platforms where the application will execute. To do so, it is based on contextual abstraction, where the performance of components that encapsulate parallel computations, communication patterns and data structures may be tuned according to the features of parallel computing platforms and the application requirements. In turn, for providing a higher level of abstraction in parallel programming, HTS supports an expressive approach for skeleton-based programming. A study of the safety properties of HTS using a calculus of component composition has provided solid foundations for the design of configuration languages for the safe specification and deployment of parallel components. The features of HTS are validated with three case studies that exercise the programming techniques behind contextual abstraction, including skeletons and performance tuning. (C) 2016 Elsevier B.V. All rights reserved.

关键词： component-based software engineering High performance computing component-based high performance computing Parallel programming Type systems

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The Palladio component model for model-driven performance prediction

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JOURNAL OF SYSTEMS AND software 2009年第1期82卷 3-22页

作者： Becker, Steffen Koziolek, Heiko Reussner, Ralf Univ Karlsruhe FZI Forschungszentrum Informat IPD D-76131 Karlsruhe Germany Carl von Ossietzky Univ Oldenburg Grad Sch TrustSoft D-26111 Oldenburg Germany

One aim of component-based software engineering (CBSE) is to enable the prediction of extra-functional properties, such as performance and reliability, utilising a well-defined composition theory. Nowadays, such theories and their accompanying prediction methods are still in a maturation stage. Several factors influencing extra-functional properties need additional research to be understood. A special problem in CBSE stems from its specific development process: software components should be specified and implemented independently from their later context to enable reuse. Thus, extra-functional properties of components need to be specified in a parametric way to take different influencing factors like the hardware platform or the usage profile into account. Our approach uses the Palladio component model (PCM) to specify component-based software architectures in a parametric way. This model offers direct support of the CBSE development process by dividing the model creation among the developer roles. This paper presents our model and a simulation tool based on it, which is capable of making performance predictions. Within a case study, we show that the resulting prediction accuracy is sufficient to support the evaluation of architectural design decisions. (c) 2008 Elsevier Inc. All rights reserved.

关键词： component-based software engineering software architecture Performance prediction

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CLPL: Providing software infrastructure for the systematic and effective construction of complex collaborative learning systems

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JOURNAL OF SYSTEMS AND software 2010年第11期83卷 2083-2097页

作者： Caballe, Santi Xhafa, Fatos Open Univ Catalonia Dept Comp Sci Multimedia & Telecommun Barcelona 08018 Spain Tech Univ Catalonia Dept Languages & Informat Syst Barcelona 08034 Spain

Over the last decade, e-Learning and in particular Computer-Supported Collaborative Learning (CSCL) needs have been evolving accordingly with more and more demanding pedagogical and technological requirements. As a result, high customization and flexibility are a must in this context, meaning that collaborative learning practices need to be continuously adapted, adjusted, and personalized to each specific target learning group. These very demanding needs of the CSCL domain represent a great challenge for the research community on software development to satisfy. This contribution presents and evaluates a previous research effort in the form of a generic software infrastructure called Collaborative Learning Purpose Library (CLPL) with the aim of meeting the current and demanding needs found in the CSCL domain. To this end, we experiment with the CLPL in order to offer an advanced reuse-based service-oriented software engineering methodology for developing CSCL applications in an effective and timely fashion. A validation process is provided by reporting on the use of the CLPL platform as the primary resource for the Master's thesis courses at the Open University of Catalonia when developing complex software applications in the CSCL domain. The ultimate aim of the whole research is to yield effective CSCL software systems capable of supporting and enhancing the current on-line collaborative learning practices. (C) 2010 Elsevier Inc. All rights reserved.

关键词： software architecture and design software engineering methods software reuse component-based software engineering Model-driven engineering Service orientation SOA Computer-supported collaborative learning E-learning software and systems education

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Multi-objective exploration of architectural designs by composition of model transformations

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software AND SYSTEMS MODELING 2019年第1期18卷 107-127页

作者： Rahmoun, Smail Mehiaoui-Hamitou, Asma Borde, Etienne Pautet, Laurent Soubiran, Elie TELECOM ParisTech Inst Mines Telecom LTCI 46 Rue Barrault F-75634 Paris 13 France Inst Technol Res SystemX 8 Ave Vauve F-91120 Palaiseau France Alstom 48 Rue Albert Dhalenne F-93482 St Ouen France

Designing software architectures and optimizing them based on extra-functional properties (EFPs) require to identify appropriate design decisions and to apply them on valid architectural elements. software designers have to check whether the resulting architecture fulfills the requirements and how it positively improves (possibly conflicting) EFPs. In practice, they apply well-known solutions such as design patterns manually. This is time-consuming, error-prone, and possibly sub-optimal. Well-established approaches automate the search of the design space for an optimal solution. They are based model-driven engineering techniques that formalized design decisions as model transformations and architectural elements as components. Using multi-objective optimizations techniques, they explore the design space by randomly selecting a set of components and applying to them variation operators that include a fixed set of predefined design decisions. In this work, we claim that the design space exploration requires to reason on both architectural components as well as model transformations. More specifically, we focus on possible instantiations of model transformations materialized as the application of model transformation alternatives on a set of architectural components. This approach was prototyped in RAMSES, a model transformation and code generation framework. Experimental results show the capability of our approach (i) to combine evolutionary algorithms and model transformation techniques to explore efficiently a set of architectural alternatives with conflicting EFPs, (ii) to instantiate, and select transformation instances that generate architectures satisfying stringent structural constraints, and (iii) to explore design spaces by chaining more than one transformation. In particular, we evaluated our approach on EFPs, architectures, and design alternatives inspired from the railway industry by chaining model transformations dedicated to implement safety design patte

关键词： component-based software engineering Model transformations composition Design space exploration Rule-based transformation languages AADL models Extra-functional properties Multiple objectives evolutionary algorithms NSGA-II SAT solvers Linear programming

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Intrusion detection aware component-based systems: A specification-based framework

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JOURNAL OF SYSTEMS AND software 2007年第5期80卷 700-710页

作者： Hussein, Mohammed Zulkernine, Mohammad Queens Univ Sch Comp Kingston ON K7L 3N6 Canada

component-based software engineering (CBSE) increases the reusability of software and hence decreases software development time and cost. Unfortunately, developing components for maximum reusability and acquiring third party components invite many security related concerns. The security related issues are more crucial for embedded and real-time systems. Currently, many approaches are proposed to aid the development and evaluation of secure components. However, it is well known among practitioners that, like any other software entities, components cannot be completely secure. This fact leads us to incorporate intrusion detection facilities to equip components with mechanisms to discover intrusions against components. In this paper, we present a framework for developing components with intrusion detection capabilities. This framework uses UMLintr, a UML profile for intrusion specifications. The profile allows developers to specify intrusion scenarios using UML diagrams. Specifying intrusion scenarios using the same language that is used for specifying software behavior eliminates the need for separate languages for describing intrusions. Other software specification languages can be easily adopted into this framework. The outcome of this framework are components equipped with intrusion detectors. based on UMLintr, a prototype is built and used to generate signatures for some intrusions included in the benchmark DARPA attack datasets. Furthermore, we describe an Intrusion Detection System (IDS) which uses these signatures to detect component intrusions. (c) 2006 Published by Elsevier Inc.

关键词： component-based software engineering component security UML profile intrusion detection

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Integrated model for software component selection with simultaneous consideration of implementation and verification

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COMPUTERS & OPERATIONS RESEARCH 2012年第12期39卷 3376-3393页

作者： Wu, Zhiqiao Kwong, C. K. Tang, Jiafu Chan, J. W. K. Northeastern Univ State Key Lab Integrated Automat Proc Ind Dept Syst Engn Shenyang 110004 Peoples R China Hong Kong Polytech Univ Dept Ind & Syst Engn Kowloon Hong Kong Peoples R China Shenyang Univ Liaoning Key Technol Engn Ctr Internet Things Coll Business Adm Shenyang 110044 Peoples R China

One important objective of component-based software engineering is the minimization of the development cost of software products. Thus, the costs of software component implementation and verification, which may involve substantial expenses while under development, should be reduced. In addition, the costs for these processes should not be considered individually, but in an integrated manner, to further reduce development cost. In the current paper, an integrated decision model is proposed to assist decision-makers in selecting reuse scenarios for components used for implementation and in simultaneously determining the optimal number of test cases for verification. An objective of the model is the minimization of development cost, while satisfying the required system and reliability requirements. The Lagrange relaxation decomposition (LRD) method with heuristics was developed to solve integrated decision problems. based on LRD, the nonlinear model is condensed into a 0-1 knapsack problem for the subproblem on reuse scenario selection and an integer knapsack problem for the subproblem on the determination of the optimal number of tests. Combined with the Lagrange multiplier-determined heuristic, the proposed algorithm can determine the global optimum solution. Simulations of varying sizes for problems and sensitivity analyses were conducted, and the results indicate that LRD is more effective than previous methods in determining global optimal solutions for the integrated decision problem. (c) 2012 Elsevier Ltd. All rights reserved.

关键词： component-based software engineering component selection Reliability Optimization model Lagrange relaxation

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