A genetic framework model for selfadaptive software. These problems are primarily due to the openloop structure often followed in software development. The dressing utilises patented smart polymers for sensing the underlying tissue conditions and adapting local functions accordingly. Selfadaptive software architecture approaches are emerging to aid in.
A exemplar can be quite generic such as an artifact or rather specific such as a model problem in selfadaptive systems. The evergrowing complexity of software systems coupled with the need to maintain their quality of service qos characteristics, even under adverse conditions and highly uncertain environments, have instigated the emergence of selfadaptive software systems. A modelbased approach to selfadaptive software ieee journals. Selfadaptive software changes its behavior at runtime without affecting the running system. It is common for a discipline, especially one that is just getting its wits about itself, to adopt some shared, welldefined problems for teaching and study. According to this article, the essence of selfadaptive software is aligned with. Enluxtra smart selfadaptive dressing is the first and only selfregulating superabsorbent fiber dressing with localized adaptive absorbency and builtin localized adaptive hydration function. Selfadaptive software refers to software that changes by itself according to environmental changes, thereby solving a problem. Planning is one of the fundamental design considerations when building a self adaptive software system. The goal is to provide a repository of examples, challenge problems, and solutions that the software engineering for selfadaptive systems. Poiseds application to the problem of improving a software. The vision for selfadaptive systems sas is that they should continuously adapt their behavior at runtime in response to changing users requirements. Approach to action selection in selfadaptive software mazeiar salehie, ladan tahvildariy software technologies applied research group dept. Self adaptive software evaluates its own behavior and changes behavior when the.
Section 2 discusses selfadaptive software from cybernetic perspective, by analyzing the similarity between software selfadaptation. Often known as model systems or type problems, they provide a way to compare methods and results, work out new techniques on standard examples, and set a minimum. Self adaptive software is a relatively new approach to dynamic self management of software based systems. This dissertation proposes a systematic evaluation process. The goal is to provide a repository of examples, challenge problems, and solutions that the software engineering for selfadaptive systems community can use to. In fact, selfadaptivity is linked to what lehman has discussed on feedback and feedback control in the context of the software process for evolution lehman 1996. To solve this problem, the concept of selfadaptive software has emerged. Selfadaptive system an overview sciencedirect topics. Learningbased adaptation determination method for problem. Self adaptive software problems and projects request pdf. Sabatucci 3 the strategy that enables restoration of the electrical power system is called reconfiguration. Selfadaptive and interferenceaware multiobjective ant colony optimization for decision making in selfadaptive software. Proceedings of the 11th international symposium on software engineering for adaptive and selfmanaging systems model problem and testbed for experiments with adaptation in smart cyberphysical systems.
The number of steps and the adopted strategies that can also involve human intervention may vary. This type of software analyzes its performance and dynamically modi. Therefore, the focus of this paper is selfadaptive software in the avionics domain and its. Also, little is known about the stability of systems built this way and more work remains to be done in this area.
Adaptive software development asd is a software development process that grew out of the work by jim highsmith and sam bayer on rapid application development rad. A genetic framework model for selfadaptive software enas nafar and said ghoul research laboratory on bioinspired systems modeling, faculty of information technology, philadelphia university, amman, jordan abstract background. Software engineering for selfadaptive systems the imdea. Self adaptive software evaluates its own behavior and changes behavior when the evaluation indicates that it is not accomplishing what the software is intended to do, or when better functionality or performance is possible. Adaptive software incorporates monitoring, decisionmaking, and actuation to maintain reliable behavior despite sudden, unpredictable changes like application workload. Evaluating missioncritical selfadaptive software systems. Control strategies for selfadaptive software systems. Taylor, dennis heimbigner, gregory johnson, nenad medvidovic, alex quilici, david s. Self adaptive systems provide a promising track to deal with attendant problems but need to address many issues. Citeseerx document details isaac councill, lee giles, pradeep teregowda. A framework based on learning techniques for decision. A difficult problems for self adaptive software is the problem of self evaluation8. In the context of engineering selfadaptiveness, it is to be recognized that software is the primary means by which this adaptation is obtained.
In time, a reasonable approach to some of these problems becomes the price of admission to get serious consideration of a new technique. It concerns those quality issues that are measured at runtime during the execution of a. In this paper, we propose a problem oriented approach for this issue. Selfadaptive software is capable of evaluating and changing its own behavior. A problem oriented approach to modeling feedback loops for. The proposed technique was applied to, which provides a selfadaptive software scenario. Planning helps the adaptive system to determine an appropriate course of action at run time that seeks to change the systems behavior in response to faults, changing environments and security threats. Selfadaptive software evaluates its own behavior and changes its behavior when the evaluation indicates that the software does not accomplish what it is intended to do or when better functionality or better performance is possible. Currently, studies are being carried out on selfadaptive software in various aspects in different fields. Runtime test case synchronization in adaptive software. The goal is to provide a repository of examples, challenge problems, and solutions that the software engineering for selfadaptive systems community can use to motivate research, exhibit solutions and techniques, and compare results. The problem with software is that it takes too much time and money to develop, and is brittle when used in situations for which it was not explicitly designed. A weighted voting mechanism for action selection problem. It is often not clear that we can evaluate functionality and performance at runtime.
These changes may stem from the software systems self internal causes, e. In other words, it is a form of computeradministered test in which the next item or set of items selected to be administered depends on the correctness of the test takers responses to the most recent. A verification technique for selfadaptive software by. On runtime requirements adaptation problem for self. A model problem for big data self adaptive systems using sumo and traci. A weighted voting mechanism for action selection problem in selfadaptive software abstract. This approach models the system composed by the selfadaptive software and its context as an adaptive control system which is equipped with two kinds of feedback loops. Enluxtras patented technology continuously monitors. The key aspect of selfadaptive software is that code behavior is evaluated or tested at runtime.
Such a system is required to monitor domain events, detect significant changes, decide how to react, and act in order to execute the decisions. Through this, the possibility was shown that an adaptivestrategy can be prepared in advance by selfadaptive software through the modelchecking technique in the stage prior to the execution of selfadaptation. Selfadaptive control software is a new paradigm to create robust, faulttolerant mobile robots. What are the organizing principles for such systems. Solving performance issues with selfadaptive software. A model problem for big data self adaptive systems using sumo and traci starofallcrowdnav. Exemplars software engineering for selfadaptive systems. All living organisms have a highly developed capacity for adaptation.
While great strides have been made in the advancement of enterprise software and technology, a real gap still exists in the ability of software to be smart, selfadaptive and capable of initiating qualitycontrol changes that can improve performance and functionality. This is a component that exploits multiobjective ant colony algorithm to optimise adaptation decisions for selfadaptive software system at runtime. A modelbased approach to selfadaptive software gabor karsai and janos sztipanovits, institute for software integrated systems, vanderbilt university i ronically, the tremendous success of softwarebased solutions has gradually made their fundamental lureflexibilityless and less achievable. In this paper, we define self adaptive software sas, discuss paradigms for implementing sas, the core problem of self evaluation, discuss some applications, and indicate some area of. Selfadaptive software is a response to these demands. An architecturebased approach to selfadaptive software. The remainder of this paper is organized as follows. This site contains a set of exemplars for selfadaptive systems. This paper discusses the concepts, history and applications of self adaptive software over. These systems are usually mapped to a composition of architectural patterns.
The concept was originally invented in the context of evolution strategies see, e. The modelintegrated approach to self adaptive software, decomposes the problem into two major issues. Ieee transactions on software engineering 1 a learningbased framework for engineering featureoriented selfadaptive software systems naeem esfahani, ahmed elkhodary, and sam malek, member, ieee abstractselfadaptive software systems are capable of adjusting their behavior at runtime to achieve certain functional or quality of service goals. Learning based adaptation determination method for. A general overview of research and problems on selfadaptive software can be found in 7,12. We have created two systems that facilitate the creation of selfadaptive control software. Self adaptive software problems and projects ieee conference. Selfadaptive software is a closedloop system which aims at adjusting itself in response to changes at runtime. In this paper, we will discuss the selfadaptive software from cybernetic perspective, and propose an application serverassupported approach.
Computerized adaptive testing cat is a form of computerbased test that adapts to the examinees ability level. Incorporating adaptivity using learning in avionics self. For this reason, it has also been called tailored testing. In this paper, we define self adaptive software sas, discuss paradigms for implementing sas, the core problem of self evaluation, discuss some applications, and indicate some area of future work. Towards a goaldriven approach to action selection in self. Selfadaptive system an automatic control system that preserves its operational capability under conditions of unforeseen change in the properties of the controlled system, in the control goal, or in the environment by changing its operation algorithm or searching for optimal states. Learningbased adaptation determination method for problem recognition of selfadaptive software kwangsoo seol1,and dookwon baik2 1department of computer and radio communications engineering, korea university, seoul, republic of korea abstract in this paper, we propose a method for identifying the adaptation period when a problem occurs in. It embodies the principle that continuous adaptation of the process to. Selfadaptive system article about selfadaptive system. Selfadaptive software an architecturebased approach to selfadaptive software peyman oreizy, michael m. Pdf in this paper, we define self adaptive software sas, discuss paradigms for implementing sas, the core problem of self evaluation, discuss some.
Is shipboard power reconfiguration a selfadaptive problem. In a seminal paper, kephart and chess put forward selfmanagement as the only viable option to tackle the problems that underlie this complexity crisis 36. On runtime requirements adaptation problem for selfadaptive systems nauman a. Selfadaptive software evaluates its own behavior and changes behavior when the evaluation indicates that it is not accomplishing what the software is intended to do, or when better functionality or performance is. Software systems facilitating selfadaptive control software. A selfadaptive software system is capable of modifying. Moreover, only recently have the first attempts been made to estab lish suitable software engineering approaches for the provision of selfadaptation. Selfadaptation allows a software to adapt itself to any problem from a general class of problems, to reconfigure itself accordingly, and to do this without any user interaction. In a fully decoupled and modularly applied mannerindependent of the adaptation management process and the selfadaptive application itselfarcm promotes the visibility of selfadaptive behavior and provides facilities which can be used to recover from. We continue to apply the self adaptive apporach to resource rich, perceptually enabled environments, such as the mit intelligent room 5, including resource management 8 and face recognition 7. Of course, some problems are easier to evaluate than others, and we can certainly try categorizing problems according to difficulty of self.
Model problem and testbed for experiments with adaptation. Selfadaptive software is capable of evaluating and changing its own behavior, whenever the evaluation shows that the software is not accomplishing what it was intended to do, or when better functionality or performance may be possible. Is there a common infrastructure that can support all self adaptivesoftware systems. Often known as model systems or type problems, they provide a way to compare methods and results, work out new techniques on standard examples, and set a minimum standard of capability for new participants.
1303 1157 522 568 1165 515 900 1302 1127 1507 1497 253 466 552 317 1063 289 123 292 979 11 59 598 808 527 1362 818 543 389 1131 1485 354 78 1473 1455 257 610 1039 115 962