A framework for classifying and comparing software. The past decade has also witnessed the extension of hte principles toward the realm of smallmolecule process chemistry. Each theme stands for a research direction on its own, with only a subset of its research and application dedicated to the area of software architecture evolution. Objectoriented oo classes form the basic components of the software systems. An approach to software architecture analysis for evolution. On architectural stability and evolution springer for. Maintainability is an essential software quality attribute as software maintenance is a costly process. Analyzing the instability of the core components of. Opensource software systems are becoming progressively v.
Therefore, stability is a key measure for evaluating an architecture. Iso 9126 characterised maintainability with five subcharacteristics, one of which is stability. Courses credentials workforce development curricula license sei materials computer security incident response teams. Paul rodrigues cto, wisdomtree software solutions, chennai, india. Software architecture has been identified as an increasingly important part of software development. These five categories of themes represent an overview of the main topics of software architecture evolution research. When evaluating software architectures, some of the evaluation approaches appeal to multiobjective optimization mop aleti et al. Evolution impact on architecture stability in opensource. Maintenance and improvement costs represent more than half the total cost of a system, a percentage that has grown steadily since 1960. We then look at an emerging class of methods that explicates evaluating software architectures for stability and evolution. In this article, authors discuss morphosis, a multiperspective measuring approach for architecture sustainability that includes evolution scenario.
Mar 20, 2014 in this article, authors discuss morphosis, a multiperspective measuring approach for architecture sustainability that includes evolution scenario analysis, architecture compliance checking, and. In managing the change and guiding evolution, considerable emphasis is placed on the architecture of the. In a research paper, 14 presented how graphbased characterization can be used to capture software system evolution and facilitate development that helps estimate bug severity, prioritize. In 19 the authors present a set of metrics designed to measure the stability of an open source software product such as. I suggest stability or resilience as a primary criterion for evaluating an architecture. Quality attributes have been discussed previously throughout the compendium. We refer to the presence of this intuitive phenomenon as architectural stability. Software architecture quality the method is applied. Subsequently, the architecture of these systems tends to degrade with time. Infoq spoke with rick kazman, coauthor of evaluating software architectures book, on architecture evaluation topic. The stability of a software product is important in order to facilitate maintainability and its evolution. Sustainability evaluation of software architectures ing. In the proceedings of the acs ieee international conference on computer systems and applications. Evaluating a software architecture whether they need to support concurrent access, directly impact performance and reliability.
Software architectures, product lines, analysis, software evolution, software reusability, scenarios 1. We define architectural stability and formulate the problem of. Evaluating architectural stability using a metricbased approach. The evolution of highthroughput experimentation in. This book is a comprehensive guide to software architecture evaluation, describing specific methods that can quickly and inexpensively mitigate enormous risk. Bosch defines developeroriented quality attributes to be those of particular relevance from a software engineering perspective 1.
Modelbased software architecture evolution and evaluation swc. Unstable software may lead to high maintenance cost and effort. Prior research has studied the evolution of software using the information of how its. You will be redirected to the full text document in the repository in a few seconds, if not click here. The approach views software evolution as a process in which a software system is undergoing a change an incremental and seeking a value. Saam purpose saam creators looked for a method able to express the different. Evolution can be cited as a metaphor for iterative development.
It was created 3 to assess the architectures modifiability in its various names. A study on the role of software architecture in the. Successful product development and evolution depend on making the right architectural choices. Evaluating software architectures is a critical part of architecture processes. We define architectural stability and formulate the problem of evaluating software architectures for stability and evolution. In this chapter, we focus on developeroriented quality attributes. Today, most major pharmaceutical companies have created dedicated hte groups within their. Evaluating software architectures for stability and evolution.
The approach assumes that the software architectures goal is to guide the systems evolution. Measuring software architecture stability evolution in. A software architecture describes a systems structure and global properties and thus determines not only how the system should be constructed but also guides its evolution. Mop is not trivial as the process involves optimizing multiple conflicting objectives. Both approaches start with the assumption that the software architectures primary goal is to guide the systems evolution. The first seideveloped architecture analysis method. A taxonomy for architecture stability ftp directory listing. The presence of this intuitive phenomenon is referred to as architectural stability. He exemplifies by listing a number of such attributes. Measuring stability of objectoriented software architectures. One of the major indicators of the success failure of software evolution is the extent to which the software system can endure changes in requirements, while. Modelbased software architecture evolution and evaluation. Development, stability, and evolution rami bahsoon and wolfgang emmerich dept.
Classes in objectoriented systems form the basic elements of the software architecture. Measuring software architecture stability evolution in objectoriented open source systems. Citeseerx document details isaac councill, lee giles, pradeep teregowda. We highlight the requirements for evaluating architectural stability. This cited by count includes citations to the following articles in scholar. Several methods for evaluating software architectures have been proposed in order to assist the. As explained, each theme exhibits its specific research focus. Sustainability evaluation of software architectures. Praise for evaluating software architectures the architecture of complex software or systems is a collection of hard decisions that are very expensive to change. A study on the role of software architecture in the evolution. Stable software, the capability of software to evolve while preserving its design, is an important software feature that software engineers strive for. Relating system quality and software architecture mistrik, ivan, bahsoon, rami, eeles, peter, roshandel, roshanak, stal, michael on. One recurring theme in defense challenge problems is the need to predict problems before a system has been built.
Computer science department, george mason university, usa software engineering department, rochester institute of technology, usa. The performed analysis considers software systems assessing software architecture stability and its evolution along developed by using different paradigms. Assessing package organization in legacy large objectoriented software. We can argue that, as parnas foresaw in his early work on change, evolution is the underlying, if implicit, motivation for much of the recent software development research. On the relationship of class stability and maintainability. The objective is to provide insights into architectural stability and investment decisions related to the evolution of software architectures. Runtime monitoring and realtime visualization of software architectures. Evaluating architectural stability with real options theory rami k. Exploiting adls to specify architectural styles induced by middleware. This book is a comprehensive guide to software architecture evaluation, describing specific methods that can quickly and inexpensively mitigate enormous risk in software projects. This dissertation is dedicated to the memory of my grandfather.
We have applied this approach to largescale telecommunications systems, where the approach is useful to reveal areas for improvement and the potential for reuse. Many organizations are now pursuing software architecture as a way to control their software development and evolution costs and challenges. Retrospective evaluation looks at successive releases of the software system to analyze how smoothly. We survey seminal work on software architecture evaluation methods.
The software architecture helps the developer of a software system to define the internal structure of the system. Software architecture evaluation methods for performance. Measuring software architecture stability evolution in object. Evaluating system architecture software engineering institute. Stable software tends to reduce maintenance cost and effort. In this paper, we present a survey of software architecture evaluation methods. The analysis of the software architectures stability of the core components of the analyzed projects and related trends are presented as results. Evaluating software architectures introduces the conceptual background for architecture evaluation and provides a stepbystep guide to the process based on numerous evaluations performed in government and. Bennett and rajlichbennet00 proposed a software development process that considers the evolution and retirement of software as explicit phases in the software lifecycle.
Each theme stands for a research direction on its own, with only a subset of its research and application dedicated to the area of software architecture. We define architectural stability and formulate the problem of evaluating software architectures for. Dec, 2011 evaluating software architectures is a critical part of architecture processes. Saam is the first widely promulgated scenariobased software architecture analysis method. Software systems usually evolve constantly, which requires constant development and maintenance. Abstract the growth of various software architectural frameworks and models provides a standard governing structure. We support the model with a threephase method for evaluating architectural stability.
In 20th asiapacific software engineering conference apsec 20, pullman bangkok king power hotel, bangkok, thailand, december 25, 20, vol. Evaluating architectural stability with real options theory. Architectural stability proceedings of the confederated. Roselin mary department of information technology, hindustan university, chennai, india. Exploiting adls to specify architectural styles induced by middleware infrastructures. Pdf evaluating architecture stability of software projects. Highthroughput experimentation hte has revolutionized the pharmaceutical industry, most notably allowing for rapid screening of compound libraries against therapeutic targets. A study on the role of software architecture in the evolution and quality of software ehsan kouroshfar. Short innovation cycles in software and hardware make architecture design a key issue in future development processes for embedded systems.
A study on the role of software architecture in the evolution and quality of software. Approaches to evaluating software architectures for stability can be retrospective or predictive 7. Its main goal is to support the understanding and architectural evaluation and evolution of software systems. Conference paper pdf available august 2003 with 175 reads. One of the major indicators of the success failure of software evolution is the extent to which the software system can endure changes in requirements, while leaving the architecture of the software system intact.
When evaluating software architectures, some of the evaluation approaches appeal to multiobjective optimization. Pdf evaluating architecture stability of software projects maria. Can you afford not to identify and not to evaluate these choices. Maintainability, reusability, flexibility and demonstrability.
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