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A classification of dynamic software architectures
Växsjö University, Växsjö, Sweden.
2005 (English)Report (Other academic)
Abstract [en]

A recent trend in computing is towards more autonomous software systems. This is mainly driven by that our daily life more and more depends on computers and software. Areas like ubiquitous computing with small (embedded) systems and their antipodes world-wide distributed systems require different support in terms of flexibility and availability. Systems must be able to adapt to changes in the environment, including self-healing and adaptation. Users can not take on the tedious task of constantly maintaining and updating their software packages to each and every change. This paper discusses one of the foundations for developers of these systems, dynamic architecture. We investigate the existing body of work in the area and identify dimensions and aspects of dynamically changing arcbitectures. Continuing, we use this division creating a dassification of four fundamental dynamic architecture dasses: Dynamic, Adaptive, Constructive, and Reflective. These four are presented as architectural patterns and their possible application areas are discussed.

Place, publisher, year, edition, pages
2005. , 51 p.
Series
Technical report, ISSN 1650-2647 ; 04122
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-12965OAI: oai:DiVA.org:liu-12965DiVA: diva2:17557
Available from: 2008-04-01 Created: 2008-04-01 Last updated: 2012-11-20
In thesis
1. Dynamic software architectures
Open this publication in new window or tab >>Dynamic software architectures
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Software architecture is a software engineering discipline that provides notations and processes for high-level partitioning of systems' responsibilities early in the software design process. This thesis is concerned with a specific subclass of systems, systems with a dynamic software architecture. They have practical applications in various domains such as high-availability systems and ubiquitous computing.

In a dynamic software architecture, the set of architectural elements and the configuration of these elements may change at run-time. These modifications are motivated by changed system requirements or by changed execution environments. The implications of change events may be the addition of new functionality or re-configuration to meet new Quality of Service requirements.

This thesis investigates new modeling and implementation techniques for dynamic software architectures. The field of Dynamic Architecture is surveyed and a common ground defined. We introduce new concepts and techniques that simplify understanding, modeling, and implementation of systems with a dynamic architecture, with this common ground as our starting point. In addition, we investigate practical use and reuse of quality implementations, where a dynamic software architecture is a fundamental design principle.

The main contributions are a taxonomy, a classification, and a set of architectural patterns for dynamic software architecture. The taxonomy and classification support analysis, while the patterns affect design and implementation work directly. The investigation of practical applications of dynamic architectures identifies several issues concerned with use and reuse, and discusses alternatives and solutions where possible.

The results are based on surveys, case studies, and exploratory development of dynamic software architectures in different application domains using several approaches. The taxonomy, classification and architecture patterns are evaluated through several experimental prototypes, among others, a high-performance scientific computing platform.

Place, publisher, year, edition, pages
Linköping: Linköping Universitet, 2006. 40 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1083
Keyword
Dynamic software architecture, taxonomy, classification
National Category
Computer Science
Identifiers
urn:nbn:se:liu:diva-11115 (URN)978-91-85715-46-6 (ISBN)
Public defence
2007-04-27, Visionen, Hus B, Linköpings Universitet, Linköping, 10:15 (Swedish)
Available from: 2008-04-01 Created: 2008-04-01 Last updated: 2012-11-20

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Citation style
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