Selfadaptive, healing architectures software engineering aims for the systematic, principled design and deployment of applications that fulfill softwares original promiseapplications that retain full plasticity throughout their lifecycle and that are as easy to modify in the field as they are on the drawing board. Software architectures found particularly useful for families of systems product lines are often codified into architectural patterns, architectural styles, and reusable, parameterized reference architectures. A decisionmaking specification language for automatic. Modern computer system designers must consider many more factors than raw performance of individual applications.
The stateoftheart in engineering selfadaptive software systems involves manual construction of numerous models, which are then used at runtime for making and effecting adaptation decisions. We enhances the runtime concept idiom with a prototype of an open, extensible, and loosely coupled algorithm library a runtime counterpart of the stl algorithms. Yet many of these issues are transient in nature, are difficult to predict, and are expensive to completely avoid. May 18, 2010 modern computer system designers must consider many more factors than raw performance of individual applications. Ii brazilian symposium on software components, architectures. A modeldriven approach to graphical user interface. Ideally such systems must evolve while they execute. Runtime adaptation ra 17,16 is a technique prevalent to long running, highly available software systems, whereby system characteristics e. Download citation architectural styles for runtime software adaptation runtime software adaptability the ability to change an applications behavior during runtime is an increasingly. The runtime system contains implementations of basic lowlevel commands and may also implement higherlevel commands and may support type checking, debugging, and even code. To achieve this, highly dynamic software systems must be instrumented with selfadaptation mechanisms to monitor selected requirements and environment conditions to assess the need for evolution, plan desired changes, as well as validate and verify the resulting system.
These kinds of software releases may be called runtime programs because they offer a runtime environment without other features that allow for more permanent use, such as building executable files. Architectural styles for runtime software adaptation ieee. This paper examines a range of styles and assesses them with respect to a fourelement evaluation framework, called base. Existing research in this eld focuses on software structures and their representations. Thus, signi cant bodies of work look at software architecture as an appropriate basis for runtime model adaptation 9. Thermal output, power consumption, reliability, heterogeneity, and dynamic resource contention have become firstorder concerns. This dissertation investigates on dynamic software product lines dspl. Citeseerx document details isaac councill, lee giles, pradeep teregowda. However, for adaptation to be effective several other factors need to be considered. To achieve this, highly dynamic software systems must be instrumented with self adaptation mechanisms to monitor selected requirements and environment conditions to assess the need for evolution, plan desired changes, as well as validate and verify the resulting system. Although there exist plenty of roboticsspeci c software architeture styles and frameworks, commonly supported by platformspeci c and hardly interoperable middlewares 15, most of them currently lack of support for modeldriven robotics software development and selfadaptation 11. On the other hand, runtime adaptive software are capable of being. Taylor university of california, irvine institute for software research. Architectural styles for runtime software adaptation abstract.
Apr 14, 2020 technical support we offer free beforeandafter purchase technical support for our programs getdataback, diskexplorer, raid reconstructor and captain nemo. Figure 1 shows a conceptual model for selfhealing architectures. Runtime software adaptation companion of the 30th international. If you use our software commercially for more than one data recovery, purchase of additional support time may be necessary. Mapping software architecture styles and engineering. Unifying design and runtime software adaptation using. Modelbased verification and adaptation of software.
Runtime adaptation ra 17,16 is a technique prevalent to longrunning, highly available software systems, whereby system characteristics e. Towards the update safety issue, 20 has proposed a runtime control to allow runtime adaptation, activating or deactivating specific software components. Software systems are seen more and more as evolutive systems. One of the main advantages of selfadaptive software is its ability to manage the complexity that stems from highly dynamic and nondeterministic operating environments. You are trying to keep up with technology, but when you finally bring in that ingenious payroll system that integrates on every type of machine, from phone to pc, there may be some resistance. Turing machine approach to runtime software adaptation. A dspl extends a classic spls by providing mechanisms to adapt products at runtime to cope with dynamic changes imposed by context awareness. Usage scenarios the main contribution of this work is a software. In dynamic architecturebased software adaptation, it is necessary to have runtime knowledge before and after adaptation of a the software architecture in terms of components and connectors, and b the mapping of the software components and connectors to the hardware.
Runtime software adaptation and evolution concern changing a software system. Styles considered include rest, eventbased, serviceoriented, and peertopeer. Achieving such adaptability may be very hard or easy. The adaptation mechanism consists of components that perform reflection, reasoning and configuration. Most languages have some form of runtime system that provides an environment in which programs run. The triumph of styles in 1998 we showed how an application can be adapted at runtime by manipulating its architectural model. Evolving software systems for selfadaptation uwspace. Runtime live cd released runtime software has released a linuxbased bootable live system. On the one hand, the most important characteristics in realtime applications are their predictable behavior and deterministic execution time. A runtime program is a specific version of an application that is distributed for limited use. An algorithm is then presented to automatically generate the runtime models. Selfadaptive, healing architectures institute for software.
Nevertheless, spls are limited regarding the runtime modi. A case for runtime adaptation using crosslayer approaches. What, where, when, how and right of runtime adaptation in. Turing machine approach to runtime software adaptation abstract in this paper, the problem of applying changes to software at runtime is considered. Architectural styles for runtime software adaptation 2009. Architectural styles for runtime software adaptation. Turing machine approach to runtime software adaptation rudy. Adding, removing and modifying software entities at runtime compositional adaptation testing and assurance. Finally we explain how the adaptation can be performed. Keynote talks keynote talk 1 richard taylor runtime software adaptation.
Mapping software architecture styles and engineering adaptive. In dynamic architecturebased software adaptation, it is necessary to have runtime knowledge before and after adaptation of a the software architecture in terms of components and connectors, and b the mapping of the software components and connectors to. This paper identifies the key factors that influence runtime adaptation in serviceoriented systems, and examines how well they are addressed in 29 adaptation approaches intended to support serviceoriented systems. Data recovery software support runtime software products. The platform, however, relies on the planning process to determine when to trigger adaptation. Adaptive software an overview sciencedirect topics. We offer free beforeandafter purchase technical support for our programs getdataback, diskexplorer, raid reconstructor and captain nemo. Planning runtime software adaptation through pragmatic goal model felipepontesguimaraesa,genainanunesrodriguesb,raianalic,daniel macedobatistaa adepartment of computer science, university of sao paulo imeusp, brazil. Our data recovery software has been thoroughly tested. Planning runtime software adaptation through pragmatic. Adaptation and abstract runtime models proceedings of the. Our icse 1998 paper showed how an application can be adapted at runtime by. Data recovery software raid recovery runtime software.
Runtime adaptation of software systems is an area of research that has received considerable attention in areas such as software architecture, product line engineering, or selfadaptive systems. Weyns, in managing tradeoffs in adaptable software architectures, 2017. This is not to be confused with the runtime lifecycle phase of a program, during which the runtime system is in operation. Implementation languages, tools, and frameworks extending existing programming languages or defining new adaptation languages. Nowhere is this more poignant than with new software. The need for runtime adaptation of systems is obvious for new development paradigms such as mobile and pervasive.
Modern software systems are often required to adapt their behavior at runtime in order. The behavior of a machine or system is governed by its software. The computability theory is used in order to develop a more general and programminglanguageindependent model of computation with support for runtime changes. Runtime software adaptability the ability to change an applications behavior during runtime is an increasingly important capability for systems, both to support continuous operation and to support a good user experience. Runtime software architecture based software evolution and. We revisit the initial base aspects for sake of completeness. In computer programming, a runtime system, also called runtime environment, primarily implements portions of an execution model. Planning runtime software adaptation through pragmatic goal model. It is the software that steers every process and movement, it is the software that manages vital messages and operating data, and it is the software that ensures appropriate responses to user input, instructions from 3rdparty systems and events reported to it via sensors. They have considered various styles including peertopeer systems, serviceoriented architectures. Realtime features and software runtime adaptation are two requirements of modern software. Runtime describes softwareinstructions that are executed while your program is running, especially those instructions that you did not write explicitly, but are necessary for the proper execution of your code lowlevel languages like c have very small if any runtime. Unifying design and runtime software adaptation using aspect. A modeldriven approach to graphical user interface runtime.
Modelbased verification and adaptation of software systems. Runtime software adaptability the ability to change an applications behavior during runtime is an increasingly important capability for systems, both to support continuous operation and to support a good user. Managing the dynamism of the osgi service platform in real. Runtime software evolution by runtime software evolution rse, or alternatively, dynamic adaptation, we refer to the ability of a software systems functionality to be changed during run. It works on all windows versions since windows vista, up to windows 10, 32bit and 64bit. How to reengineer legacy systems into adaptive ones. Runtime software architectural models for adaptation. The framework considers how a style supports changes to behavior, state, its execution context, and supports asynchrony of change.
Architectural styles for runtime software adaptation uci ics. This paper identifies the key factors that influence runtime adaptation in serviceoriented systems, and examines how well they are addressed in 29 adaptation approaches intended to. Mechanisms for leveraging models at runtime in selfadaptive. Architectural styles for runtime software adaptation citeseerx. Create a project open source software business software top downloaded projects.
Runtime adaptation for actor systems university of malta. Turing machine approach to runtime software adaptation in this paper, the problem of applying changes to software at runtime is considered. The notion of automatic user interface adaptation reflects the capability of interactive software to adapt during runtime to the individual enduser, as well as to the particular context of use, by delivering. Runtime evolution of highly dynamic software springerlink. Pdf on designing selfadaptive software systems researchgate. Architectural styles for adaptable selfhealing dependable. Selfadaptive systems are capable of modifying their runtime behavior in order to achieve.
Runtime software architecture, online evolution, online adaptation. Architectural styles for runtime software adaptation core. More complex languages like objectivec, which allows for dynamic message passing, have a much more extensive runtime. At the design phase, software is constantly in adaptation by the building process itself, and at runtime, it can be adapted in response to changing conditions in the executing environment such as location or resources.
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