Software evolution is a term which refers to the process of developing software initially, then timely updating it for various reasons, i. The software evolution process involves the set scientific as well as administrative activities, which make certain that software will continue to congregate managerial and business objectives in a cost effective way software evolution, 2008. Architecturebased design institute for software research. During the runtime of the software, when changes happen, different variance of the components will.
Lehmans laws, such as the notion that change is continuous, describe a number of insights derived from longterm studies of system evolution. Software architecturebased approach to selfadaptive. Modern software systems are prone to a continuous evolution under frequently varying requirements and changes in operational environments. A formal framework for online software version change. This framework integrates all elements that are involved in the change transmission process, such as scenario, object, component and sa software architecture. Software architecture evolution through dynamic aop. Dynamic programming languages, such as lisp and smalltalk, support statement and procedure level runtime change. Architecturebased runtime software evolution abstract. A study of remotely controlled embedded systems, to appear in the proc. This paper focuses on online evolution, more exactly, how to make online evolution process convenient and smart, with help of runtime software architecture rsa. Components or bindings can be instantiated at runtime program. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Runtime software architecture based software evolution and.
In this paper, runtime software architecture rsa based on reflective middleware is proposed to support architecturebased software maintenance and evolution. The paper proposes a solution for the consistent runtime evolution of servicebased business processes. Abstract componentbased reuse is a hopeful solution to the software crisis. An architecturebased approach for componentoriented development feng chen, qianxiang wang, hong mei, fuqing yang department of computer science and technology, peking university, beijing 100871, p. The process of software evolution is driven by requests for changes and includes change impact analysis, release planning and change implementation.
An architecture for constructing selfevolving software systems. An architectural style perspective on dynamic robotic. For the manual search, inclusion and exclusion criteria. Software evolution and software evolution processes. This award is presented at each icse, acmieee international conference on software engineering to the authors of the paper from the icse conference of 10 years ago that is judged to have had the most influence on the theory or practice of software engineering during the 10 years since its original publication. An architecture for constructing selfevolving software. Architectural runtime configuration management in support of. In this paper, we propose a novel approach to dynamically evolve a software architecture based on runtime aspect oriented programming. The clients stand for the devices, the server stands for the desktop computer, and the links stand for the connections between them. Citeseerx architecturebased runtime software evolution. Consistent runtime evolution of servicebased business. On the role of software architectures in runtime system. Architecture based runtime software evolution peyman oreizy nenad medvidovic richard n. Runtime software architectural models for adaptation, recovery.
Dynamic evolution is based on the runtime evolution of software, mainly. Architecture based design software architecture is not just a phase or an activity in the software development life cycle, but a discipline pervading all phases of development. Runtime software architecture, online evolution, online adaptation. Knowledgebased architectural adaptation management for self. Evolution of software in automated production systems. Software reconfiguration patterns for dynamic evolution of. Many such changes can only be adequately addressed through dynamic evolution of the software architecture of the application. We believe that integrating the discipline of architecture into the development process has the potential to increase the quality of software produced while reducing both the costs of development and the time to market. Model based selfadaptation of serviceoriented software systems. The software is modified to adapt it to changing customer and market requirement.
The implementation of the architecture is undertaken through use of the tool called archstidio. He is a coauthor of the icse 1998 paper titled architecturebased runtime software evolution, which was recognized as that conferences most influential paper. Software engineering software evolution geeksforgeeks. Windowing toolkit awt 30 java database connectivity jdbc 30 javamail 31 java management extensions jmx 31 5 java and architecture based software development 32 concepts of software architectures 32 support for architecture in javabeans and related technologies 33 6 summary and. While most software systems can be effectively shut down and upgraded offline, certain safety and mission critical. This paper also looks to the future, identifying what we believe to be highly promising directions. Software architecture refers to the fundamental structures of a software system and the.
Continuous availability is a critical requirement for an important class of software systems. Software architecture is still an emerging discipline within software engineering. The paper proposes a solution for the consistent runtime evolution of service based business processes. We present an architecture based approach to runtime software reconfiguration, highlighting the beneficial role of architectural styles and software connectors in facilitating runtime change. Shaw 10 can provide a foundation for systematic runtime software evolution. Runtime revolution is a team of great developers and designers most of whom have worked together for many years and with an average experience of over 10 years. A good process establishes the roles and responsibilities, sets expectations around communication with other teams and aids in defining deliverables for the team. Archstudio omt98 is a tool suite that supports architecturebased development. Runtime software architecture based software online evolution. If they find a client that needs further maintenance, they add a be. Check if you have access through your login credentials or your institution to get full access on this article.
Runtime system reconfiguration is one aspect of achieving continuous availability. Each view addresses a set of system concerns, following the conventions of its viewpoint, where a viewpoint is a specification that describes the notations, modeling, and analysis techniques to use in a view that expresses the architecture. Attributes are overall factors that affect runtime behavior, system design, and user experience. Medvidovics paper on architecturebased runtime software evolution, which appeared in the proceedings of the 1998 international conference on software engineering, was named in may 2008 that conferences most influential paper. Selfadaptive software requires high dependability, robustness, adaptability, and availability. Chapter 8 runtime evolution of highly dynamic software. Software architecture adaptability proceedings of the 4th. Runtime software architectural models for adaptation. Such models usually describe systems in terms of components, connectors, and the interconnections between them 11.
In the 20th international conference on software engineering, 1998. A specification and detection approach for parallel evolution conflicts of software architectures. Several of his papers have won best paper awards at conferences and most cited recognitions from journals. Consistent runtime evolution based on architectural model modifications. Architecture centric development and evolution processes for component based software.
Dynamic software reconfiguration is needed for systems that need to evolve after they have been deployed and the configuration is required to be updated dynamically. Viterbi faculty directory viterbi school of engineering. Taylor appeared in the proceedings of the international conference on software engineering 1998 icse98. A broad framework for studying and describing evolution is introduced that serves to unify the wide range of work now found in the field of dynamic software adaptation. Bigraph specification of software architecture and evolution. A specification and detection approach for parallel evolution. He is chair of acm sigsoft and coauthor of software architecture. Architecturebased runtime software evolution proceedings of the. A runtime architecturebased approach for the dynamic evolution of distributed. There are 4 main approaches to software adaptation i. The evolution process includes fundamental activities of change analysis, release planning, system implementation and releasing a system to customers. The focus of architecture based software development is shifted from linesofcode to coarsergrained building blocks and their overall interconnection structure. Furthermore, it introduces the novel concept of an evolution engine, which sits alongside a running application, oversees.
A runtime architecturebased approach for the dynamic evolution. Software system evolution is an active and important research topic in software engineering. Consistent runtime evolution of servicebased business processes. Applying architecturebased adaptation to automate the. An architectural style perspective on dynamic robotic architectures john georgas and richard taylor abstractwe focus on the problem of developing robotic architectures which are wellsuited to supporting runtime evolution, rather than speci. Explicit focus on architecture has shown tremendous potential to improve the current stateoftheart in software development and alleviate many of its problems. Architecturebased design software architecture is not just a phase or an activity in the software development life cycle, but a discipline pervading all phases of development. His paper on continuous analysis of collaborative design received the best paper award at the 2017 ieee international. Architecturebased adaptation equips a software intensive system with a feedback loop that enables the system to adapt itself at runtime to changes to maintain its required quality goals. We believe that integrating the discipline of architecture into the development process has the potential to increase the quality of software produced while reducing. Decisionmaking processes driving selfadaptive behavior. Nenad medvidovic the software architecture research group. A formulation of the processes involved in architecturebased selfadaptive systems appears in 12. This paper examines runtime evolution in the decade hence.
We take advantage of modern tools, finetuned processes and communication to make sure were always. Both pim and psm models can be used in runtime adaptation of software systems. Lifecycle based study framework of software evolution ieee xplore. In the traditional software architecture, only the link information of components is considered, while the place information of components is usually neglected. Software as well as software engineering in this domain need to fulfill specific.
Architecture centric software evolution 1, 6, 10 allows an appropriate abstraction to model, analyze and execute software evolution in a controllable and manageable fashion. Software systems are not only becoming larger, more complex, and also more rigid, which make it difficult to evolve software. A formal approach for managing componentbased architecture. On the role of middleware in architecturebased software. We present an architecturebased approach to runtime software evolution and. Software hot swapping is the process in which a part of a running software application is replaced by a new version of the program during runtime. Indeed, most existing approaches to architecture evolution hardly support the whole lifecycle of component based software and only enable evolution of early stage models by propagating change impact to runtime models while evolution of runtime models are not fully dealt with, thus increasing the risks of architecture erosion. Engineering the upcoming generation of software systems and guaranteeing the required qualities is complex due to the inherent uncertainties at design time, such as new user needs and changing availability of resources. Dynamic evolution of distributed componentbased systems dcs is an important task in software engineering. An architecturebased approach to runtime software evolution has been proposed that includes an explicit architectural model, which is deployed with the system and used. To demonstrate the philosophy, we propose a software reuse methodology, which is called abc architecture based component composition.
Focusing on parallel evolution conflicts of software architectures, firstly the paper establishes definitions and characterizations of. Towards a knowledgebased approach to architectural. A specification and detection approach for parallel. Software architecture descriptions are commonly organized into views, which are analogous to the different types of blueprints made in building architecture.
Architecturebased runtime software evolution peyman oreizy nenad medvidovic richard n. Architecture based evolution 17 can greatly benefit from dynamic reconfiguration. A pattern language for evolution reuse in componentbased. Architecturecentric development and evolution processes for. Software upgrade techniques for distributed systems. In 2008, he received the most influential paper award for a paper titled architecturebased runtime software evolution published in the acmieee international conference on software engineering 1998. Architectural processes are important in establishing a successful architecture program. Lifecycle based study framework of software evolution. A formulation of the processes involved in architecture based selfadaptive systems appears in 12. Changes are made to an architectural model and then reified into implementation by a runtime architecture infrastructure. This award is presented at each icse meeting to the authors of the paper from the icse meeting 10 years prior that is judged to have had the most influence on the theory or practice of software engineering during the 10 years since its original publication the award is jointly sponsored by acmsigsoft and ieee tcse.
An architecturebased approach for componentoriented. This strategy is often referred to as a process model or software engineering paradigm. Process model of architecture based, component oriented software engineering. A framework for classifying and comparing architecture. Architecturebased runtime software evolution, 2002.
A runtime architecturebased approach for the dynamic evolution of distributed componentbased systems abstract dynamic evolution of distributed componentbased systems dcs is an important task in software engineering. To guarantee the required goals, existing adaptation approaches apply exhaustive verification techniques at runtime. Software hot swapping refers to the process in which a part of a running software application is replaced by a new version of the program during runtime, mainly for maintenance, upgrade and bugfixing reasons. Served as program cochair of the 2011 international conference on software engineering icse 2011. After briefly discussing the meaning of the term evolution in the context of software, its technology, the software process and related domains, this paper describes some of the facets of the evolution phenomenon and implications to the evolution process as identified during many years of active interest in the topic. Our approach integrates results of recent work in software architecture and dynamic reconfiguration. In guiding software system evolution, software architecture plays a critical role. Administrators could add or remove clients, change connection types. Considering the work presented in this paper, abc process model is improved as shown in fig. Componentbased software engineering cbse is the major technical response to the increase in. Figure 2 software development life cycles for objectoriented software. Knowledgebased architectural adaptation management for. Towards controlling software architecture erosion through. Modelbased selfadaptation of serviceoriented software systems.
Runtime software architecture based on reflective middleware. A framework for classifying and comparing architecturecentric software evolution research pooyan jamshidi 1. For these systems, runtime system evolution can mitigate the costs and risks associated with shutting down and restarting the system for an update. An exact algorithm for large multiple knapsack problems. This paper describes an infrastructure supporting two simultaneous processes in selfadaptive software. Based on this framework, the research of software evolution will be more effective and ties in dynamic evolution. A runtime architecturebased approach for the dynamic. A pattern language for evolution reuse in component based software architectures abstract context. In this formulation, the process of selfadaptation is separated into two sub processes.
Coauthored the icse 1998 paper titled architecturebased runtime software evolution, which was recognized as that conferences most influential paper. In dynamic architecture based software adaptation, it is necessary to. According to the research institute in software evolution. Connecting software architecture to implementation, 2007. Runtime software architectural models for adaptation, recovery and evolution.
An architecturebased approach to selfadaptive software. Sep 15, 2018 architecture based adaptation equips a software intensive system with a feedback loop that enables the system to adapt itself at runtime to changes to maintain its required quality goals. This award is presented at each icse meeting to the authors of the paper from the icse meeting 10 years prior that is judged to have had the most influence on the theory or practice of software engineering during the 10 years since its original publication. Runtime software architecture based software online. Dynamow, an ocaml language extension for the runtime generation of mathe. Pkuas constructs and represents its platform and applications from the perspective of software architecture so as to provide an understandable, userfriendly and systematic way to use reflective middleware. Based on the insights provided by current robotic architectures, we elaborate. Processoriented metrics for software architecture adaptability, to appear in the proceedings of isre, 2001. Architecture evolution is the process of maintaining and adapting an existing software architecture to meet changes in. Taylor, architecture based runtime software evolution, in proc.
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