Software architecture is intended for upperdivision undergraduate and graduate courses in software architecture, software design, componentbased software engineering, and distributed systems. On the other hand, i have used various other architectures, run profilers and debuggers on a variety of nonx86 unix boxes. Software components are used in the highlevel software architecture of an application provider to capture the major software elements used to deliver the application. Optimization techniques and applications with examples wiley. In the past, less sophisticated compiler optimization technologies forced developers to avoid such programming practices and handtune the source code for the target architecture.
Introduction this study is grounded on the question of whether a componentbased software architecture would be feasible and advantageous when developing evolutionary algorithms. The complexity of such scenarios creates new challenges to software engineers. Techniques for componentbased software architecture optimization although componentbased system cbs increases the efficiency of development and reduces the need for maintenance, but even good quality components could fail to compose good product if. In computer science, program optimization or software optimization is the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources. Analysis of reliability and cost tradeoffs in architecture. Is the design optimized enough for the next implementation. Hybrid multiattribute qos optimization in component based. Implementing selfadaptive software architecture by. Power analysis and optimization techniques for energy. In general, a computer program may be optimized so that it executes more rapidly, or to make it capable of operating with less memory storage or other resources, or draw less power. Join michele vallisneri for an indepth discussion in this video computer architecture and optimization techniques, part of python.
Our premise is that for generalpurpose optimization, these kind. The results of this study are important since it will be used to develop an efficient optimization framework to optimize software architecture in next step of our ongoing research. Citeseerx a hybrid approach for multiattribute qos. The design of software architecture is one of the difficult tasks in the modern componentbased software development which is based on the idea that develop software systems by assembling appropriate offtheshelf components with a welldefined software architecture. Along with the expand of component stock, the size and the architecture of ssa become more and more complex. I reliability prediction for componentbased software architectures. This week we begin a series of blog posts on optimizing embedded software with the aim of improving i. Afshin mansouri, brunel university yuanyuan zhang, university college london in the past.
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. Offers an accessible and stateoftheart introduction to the main optimization techniques contains both traditional optimization techniques and the most current algorithms and swarm intelligencebased techniques presents a balance of theory, algorithms, and implementation includes more than 100 worked examples with. How to optimize the architecture becomes the problem when we exploit software. Automating componentbased system assembly a thesis presented to the academic faculty by. Software architects can then make wellinformed tradeo decisions and choose the best architecture for their situation. A software architecture is an abstraction of the runtime elements of a software system during some phase of its operation. In this scenario, selecting a good solution with respect to a single quality attribute can lead to unacceptable results with respect. Componentbased system, optimization approach, software architecture. This course covers the systematic design of advanced digital systems using fieldprogrammable gate arrays fpgas. I have tried to be as general as possible where i can. The cost effectiveness of the current method can be analysed. We suppose that the basics of component models 24 are wellknown.
Most software reliability models for componentbased software systems cbsss depend on either the system architecture or component reliability and glue code reliability. Consequently, our focus is on modelbased architectural selfadaptation. A heuristic model for estimating componentbased software. An evolutionary multiobjective optimization approach to componentbased software architecture design abstract. In the last decades, software architecture optimization methods, which aim to automate the search for an optimal architecture. Software architecture descriptions are commonly organized into views, which are analogous to the different types of blueprints made in building architecture. Architecturebased selfprotecting software systems a dissertation submitted in partial ful llment of the requirements for the degree of doctor of philosophy at george mason university by eric yuan master of science university of virginia, 1996 bachelor of science tsinghua university, 1993 director. An evolutionary multiobjective optimization approach to component.
Componentbased architecture does not focus on issues such as communication protocol and shared state. A reliability constrained cost minimization problem is formulated, where the decision variables represent the. Componentbased architecture reduces the cost of development and maintenance. The primary objective of componentbased architecture is to ensure component reusability. Based on this survey, a taxonomy has been created which is used to classify the existing research. Componentbased development techniques involve procedures for developing software systems by choosing ideal offtheshelf components and then assembling them using a welldefined software architecture. You will probably notice a large slant towards intel x86 based optimization techniques, which shouldnt surprise many since that is where my background is strongest. For the sake of meeting the requirement of simulation applying and simulation surroundings changing, simulation software architecture ssa always use the means of software reuse. Componentbased architecture is a branch of software engineering which provides a higher level of abstraction than objectoriented design principles.
Techniques for componentbased software architecture optimization. Software architecture optimization methods monash university. To validate our approach, we applied it to the architecture models of two systems, a business reporting system and an industrial. We propose a novel gabased algorithm genetic algorithm as a powerful optimization search algorithm, called sciga software component identification using genetic algorithm, to identify components from analysis models.
It is reusable which means can be used to reusable components to spread the development and maintenance cost across several applications. Combinations of antipattern heuristics in software architecture optimization for embedded systems ramin etemaadi 1and michel r. A component encapsulates functionality and behaviors of a software element into a reusable and selfdeployable binary unit. Evaluating the performance of a software architecture. Techniques for componentbased software architecture. In the last decades, software architecture optimization methods, which. This paper investigates recent approach es used to optimize software architecture. Im looking for tools that help me evaluate the performance of a software architecture. A hybrid approach for multiattribute qos optimisation in component based software systems.
Structural optimization for a new architecture mit. As these are software components in the context of an architecture, it is the software component usages that are deployed to the application deployment. Adaptive neighbourhood search for the component deployment. It is important to use techniques such as structured and objectoriented programming tools and techniques to ensure modular and readable code. Componentbased software development has achieved great success and been. An evolutionary multiobjective optimization approach to.
The emphasis is on topdown design starting with a software. Index termsarchitecture and software engineering, componentbased development, genetic algorithms i. Techniques for componentbased software architecture optimization by adil ali abdelaziz and wan nasir get pdf 186 kb. In the last decades, software architecture optimization methods, which aim to. However, the reported results are fragmented over different research communities, multiple system domains, and multiple quality attributes. It has only one designtemplate where the workflow consists of 12 tasks organized into 3 stages. An outline of an architecturebased method for optimizing.
An optimization framework for buildorbuy decisions in. Based on this survey, a taxonomy has been created which is used to classify. In the last decades, software architecture optimization methods, which aim to automate the search for an optimal architecture design with respect to a set of quality attributes, have proliferated. Techniques is used which characterize the behavior of such component based on their architecture 17.
Architectural styles and the design of networkbased software architectures. By selectively distributing the material in a building or a bridge, the resulting design is structurally efficient and often. Use of componentbased software architectures in industrial. Combinations of antipattern heuristics in software. In optimization of a design, the design objective could be simply to minimize the cost of production or to maximize the efficiency of production. Techniques for componentbased software architecture optimization although component based system cbs increases the efficiency of development and reduces the need for maintenance, but even good quality components could fail to compose good product if the composition is not managed appropriately. An outline of an architecturebased method for optimizing dependability attributes of. With the case study, we hope to evaluate pros and cons of reflective component and dynamic aop in implementing selfadaptive software architecture. For this specific project i need to model a distributed system of a modest size that is comparable to message oriented middleware mom. Towards a componentbased software architecture for. There are many standard component frameworks such as comdcom, javabean, ejb, corba. Component based development of computeraided tools for.
I like roy thomas fieldings definition and explanation about what is software architecture in his paper. Complex software systems are increasingly used in critical scenarios, such as medical devices, educational devices, neural network control. Trends, techniques and applications mark harman, university college london s. These energy models cover various levels of a system with a varying degree of. Componentbased software engineering cbse is a process that emphasizes the design and construction. Often, means to improve one quality property deteriorate another one. With the systematic reuse of coarsegrained components, cbd intends to deliver better quality and output. A comprehensive survey of evolutionarybased multiobjective optimization techniques. An extensive optimization analysis of the tradeoff between costs and reliability of componentbased software systems has been presented in. Automatically improve software architecture models for. To advance software engineering research, benchmarks and ex. Design decisions for complex, componentbased systems impact multiple quality of service qos properties. The clustering technique is one of the search and retrieval techniques which are based on the concept of gathering together the comparative components.
The design of software architecture is one of the difficult tasks in the modern componentbased software development which is based on the idea that develop software systems by assembling appropriate offtheshelf components with a. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Research of simulation software architecture optimization. It is important to optimize the usage of paths to obtain more accurate estimates of cbss reliability. An optimization framework for build or buy decisions in software architecture. Multidisciplinary design and optimization of a plastic injection mold using an integrated design and engineering environment following sections explain how different webservices section 2. An optimization algorithm is a procedure which is executed iteratively by comparing various solutions till an optimum or a satisfactory solution is found. Structural optimization has been attracting increasing interest in the civil engineering industry, especially in the design of highrise and long span structures.
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