Conference Paper

A Comprehensive Model of Usability.

DOI: 10.1007/978-3-540-92698-6_7 Conference: Engineering Interactive Systems - EIS 2007 Joint Working Conferences, EHCI 2007, DSV-IS 2007, HCSE 2007, Salamanca, Spain, March 22-24, 2007. Selected Papers
Source: DBLP

ABSTRACT Usability is a key quality attribute of successful software systems. Unfortunately, there is no common understanding of the
factors influencing usability and their interrelations. Hence, the lack of a comprehensive basis for designing, analyzing,
and improving user interfaces. This paper proposes a 2-dimensional model of usability that associates system properties with
the activities carried out by the user. By separating activities and properties, sound quality criteria can be identified,
thus facilitating statements concerning their interdependencies. This model is based on a tested quality meta-model that fosters
preciseness and completeness. A case study demonstrates the manner by which such a model aids in revealing contradictions
and omissions in existing usability standards. Furthermore, the model serves as a central and structured knowledge base for
the entire quality assurance process, e.g. the automatic generation of guideline documents.

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    ABSTRACT: Various models and techniques have been proposed and applied in literature for software quality prediction. Specificity of each suggested model is one of the impediments in development of a generic model. A few models have been quality factor specific whereas others are software development paradigm specific. The models can even be company specific or domain specific. The amount of work done for software quality prediction compels the researchers to get benefit from the existing models and develop a relatively generic model. Development of a generic model will facilitate the quality managers by letting them focus on how to improve the quality instead of employing time on deciding which technique best suites their scenario. This paper suggests a generic model which takes software as input and predicts a quality factor value using existing models. This approach captures the specificity of existing models in various dimensions (like quality factor, software development paradigm, and software development life cycle phase etc.), and calculates quality factor value based on the model with higher accuracy. Application of the model has been discussed with the help of an example.
    Proceedings of the 6th international workshop on Software quality; 05/2008
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    ABSTRACT: Motivation:] Environmental sustainability is an important concern. Information and communication technology (ICT) innovation is ambivalently positioned with regard to our rapid development and short-ening innovation cycles. On one hand, information technology facilitates the (excessive) usage of resources. On the other hand, ICT can also help to significantly reduce human impact on the environment. [Problem:] Environmental sustainability is currently not supported ex-plicitly in requirements engineering (RE). This leads to the problem that (a) environmental sustainability is not yet given sufficient importance and (b) it is difficult to manifest in requirements & design and therefore hard to assess. [Principal idea:] We need to combine the knowledge of RE, environ-mental informatics, and further disciplines, to develop an RE approach that tailors analysis, documentation, and assessment for ICT systems where environmental sustainability is a first class quality objective. [Contribution:] This paper is a research preview on an approach to help requirements engineers handle sustainability as a first class qual-ity objective. It elaborates on how we plan to refine and validate this approach in the future.
    International Workshop on Requirements Engineering for Sustainable Systems; 01/2012
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    ABSTRACT: User satisfaction has always been a major factor in the success of software, regardless of whether it is closed proprietary or open source software (OSS). In open source projects, usability aspects cannot be improved unless there are ways to test and measure them. Hence, the increasing popularity of open source projects among novice and non-technical users necessitates a usability evaluation methodology. Consequently, this paper presents a usability maturity model specifically aimed at usability-related issues for open source projects. In particular, the model examines the degree of coordination between open source projects and their usability aspects. The measuring instrument of the model contains factors that have been selected from four of our empirical studies, which examine the perspectives of OSS users, developers, contributors and the industry. In addition to presenting the usability maturity model, this paper discusses assessment questionnaires, a rating methodology and two case studies.
    Computers in Human Behavior 07/2012; 28(4):1109–1121. · 2.27 Impact Factor

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