Author supplied: Teaching software architecture (SA) in a bachelor computer science curriculum can be challenging, as the concepts are on a high abstraction level and not easy to grasp for students. Good techniques and tools that help with addressing the challenging SA aspects in a didactically responsible way are needed. In this tool demo we show how we used the software architecture compliance checking tool HUSACCT for addressing various concepts of SA in our courses on software architecture. The students were introduced to architectural reconstruction and architecture compliance checking, which helped them to gain important insights in aspects such as the relation between architectural models and code and the specification of dependency relations between architecture elements as concrete rules.
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Author Supplied: In the last decades, architecture has emerged as a discipline in the domain of Information Technology (IT). A well-accepted definition of architecture is from ISO/IEC 42010: "The fundamental organization of a system, embodied in its components, their relationships to each other and the environment, and the principles governing its design and evolution." Currently, many levels and types of architecture in the domain of IT have been defined. We have scoped our work to two types of architecture: enterprise architecture and software architecture. IT architecture work is demanding and challenging and includes, inter alia, identifying architectural significant requirements (functional and non-functional), designing and selecting solutions for these requirements, and ensuring that the solutions are implemented according to the architectural design. To reflect on the quality of architecture work, we have taken ISO/IEC 8402 as a starting point. It defines quality as "the totality of characteristics of an entity that bear on its ability to satisfy stated requirements". We consider architecture work to be of high quality, when it is effective; when it answers stated requirements. Although IT Architecture has been introduced in many organizations, the elaboration does not always proceed without problems. In the domain of enterprise architecture, most practices are still in the early stages of maturity with, for example, low scores on the focus areas ‘Development of architecture’ and ‘Monitoring’ (of the implementation activities). In the domain of software architecture, problems of the same kind are observed. For instance, architecture designs are frequently poor and incomplete, while architecture compliance checking is performed in practice on a limited scale only. With our work, we intend to contribute to the advancement of architecture in the domain of IT and the effectiveness of architecture work by means of the development and improvement of supporting instruments and tools. In line with this intention, the main research question of this thesis is: How can the effectiveness of IT architecture work be evaluated and improved?
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Enterprise Architecture has been developed in order to optimize the alignment between business needs and the (rapidly changing) possibilities of information technology. But do organizations indeed benefit from the application of Enterprise Architecture according to those who are in any way involved in architecture? To answer this question, a model has been developed (the Enterprise Architecture Value Framework) to organize the benefits of Enterprise Architecture. Based on this model, a survey has been conducted among the various types of stakeholders of Enterprise Architecture, such as architects, project managers, developers and business or IT managers. In the survey the respondents were asked to what extent they perceive various benefits of Enterprise Architecture in their organization. The results of this survey (with 287 fully completed responses) are analyzed and presented in this paper. In all categories of the framework benefits are perceived, though to different extent. Very few benefits are perceived in relation to the external orientation of the organization. Few statistically significant correlations were found in relation to the background of the respondents: the overall view on benefits of Enterprise Architecture appeared independent of the role of the respondents, the economic sector and the number of years of experience with architecture.
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Author supplied: "Abstract Software Architecture Compliance Checking (SACC) is an approach to verify conformance of implemented program code to high-level models of architectural design. Static SACC focuses on the modular software architecture and on the existence of rule violating dependencies between modules. Accurate tool support is essential for effective and efficient SACC. This document describes a test approach that may be used to determine how accurate a tested SACCT-tool is with respect to dependency analysis and violation reporting. This technical report is intended as a test manual and describes how a SACCT-tool can be tested. Two separate tests are described: the Benchmark test, and the FreeMind test."
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Video to describe the basics of Architecture Decision Records
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Video to describe the basics of Architecture Decision Records
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With the development of Enterprise Architecture (EA) as a discipline, measuring and understanding its value for business and IT has become relevant. In this paper a framework for categorizing the benefits of EA, the Enterprise Architecture Value Framework (EAVF), is presented and based on this framework, a measurability maturity scale is introduced. In the EAVF the value aspects of EA are expressed using the four perspectives of the Balanced Scorecard with regard to the development of these aspects over time, defining sixteen key areas in which EA may provide value. In its current form the framework can support architects and researchers in describing and categorizing the benefits of EA. As part of our ongoing research on the value of EA, two pilots using the framework have been carried out at large financial institutions. These pilots illustrate how to use the EAVF as a tool in measuring the benefits of EA.
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This paper describes a design experiment aimed at prototyping and exploring a virtual media architecture. We describe how we developed a prototype of a continuous circulation space that allows grounded movement, visual continuity and transitions between modes of the reality-virtuality continuum using an HMD (head-mounted display) and a technique called Stencil Rendering. Our prototype, situated in an architectural environment and supported by a narrative that provides a direction and context of use, enables us to explore the logic of circulation from direct experience. Throughout this paper we identify and reflect on several principles of this logic and define the circulation space as a composite of actual and virtual that unfolds interactively as the visitor moves through it. Our approach shows a way to experiment with the notion of virtual media architecture and to speculate about its possible use.
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Background and aim – Challenging behaviour, such as aggression towards oneself, others, or objects, arises in interaction with the environment and may prevent individuals from participating in society and enjoying a high quality of life (QoL). Literature suggests that architects can contribute to prevention, by influencing challenging behaviour before rather than after its occurrence. The objective is to explore how architecture can contribute to the quality of life of intellectually impaired (and autistic) individuals showing challenging behaviour (CB). Methods – The case study is based on interviews with residents and care providers, and direct observations of their daily life. Results – Residents turn out to be dependent on the (visual) connection with the care provider and may experience stress from the behaviour of fellow residents. They also may experience stress when faced with unexpected situations and by sensory overload. Originality – The relevance of architecture for CB reduction is new to this particular field of healthcare. Practical or social implications – If these preliminary findings can be confirmed, they provide a basis for developing guidelines to design better environments for intellectually impaired individuals showing CB. Architecture might promote choice in interpersonal distance, by generous floorplans, a variety of spaces, and escape possibilities. Predictability might be enhanced by providing visual overview and previews into rooms. Finally, architecture that promotes sensory adjustment might improve the QoL of individuals showing CB by preventing sensory overload, and by doing so, mitigate related behaviours.Type of paper – Research paper.
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Presentatie voor de 20e Nederlandse Testdag, m.m.v. Raymond Slot, Wiebe Wiersema, (HU), Christian Köppe (HAN, Arnhem), Sjaak Brinkkemper, Jan Martijn van der Werf (UU Utrecht). The Software Architecture of the Schiphol Group is taken as an example. Compliance checking of software rulescan be done with the Hogeschool Utrecht Software Architecture Compliance Checking Tool which is available at http://husacct.github.io/HUSACCT/
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