Specifying Frameworks and Design Patterns as Architectural Fragments

Document type: Researchreports
Full text:
Author(s): Jan Bosch
Title: Specifying Frameworks and Design Patterns as Architectural Fragments
Series: Research Report
Year: 1997
Issue: 16
ISSN: 1103-1581
Organization: Blekinge Institute of Technology
Department: Dept. of Computer Science and Business Administration (Institutionen för datavetenskap och ekonomi)
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+46 455 780 00
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Authors e-mail: Jan.Bosch@ide.hk-r.se
Language: English
Abstract: Object-oriented software architectures, such as design patterns and frameworks, have found extensive use in software industry. As a design technique, these architectural structures have proven themselves very valuable. Their implementation in traditional object-oriented programming languages, however, is often difficult, since these languages provide no support for the explicit specification of software architectures. In this paper, we develop the notion of architectural fragments, i.e. reusable architectural specifications that describe a design pattern or a framework architecture. An architectural fragment describes the structure of an architecture in terms of its components (roles), the architecture-specific behaviour of the components and the architecture-specific interaction between the components. Fragments can be composed with each other and with reusable components. To illustrate the use of fragments, we describe the role and architecture language constructs in the layered object model (LayOM) and present examples.
Subject: Computer Science\General
Software Engineering\General
Keywords: Object-oriented frameworks, design patterns, object-oriented languages, software architecture, superimposition
URN: urn:nbn:se:bth-00052