A Conceptual UX-aware Model of Requirements

User eXperience (UX) is becoming increasingly important for success of software products. Yet, many companies still face various challenges in their work with UX. Part of these challenges relate to inadequate knowledge and awareness of UX and that current UX models are commonly not practical nor well integrated into existing Software Engineering (SE) models and concepts. Therefore, we present a conceptual UX-aware model of requirements for software development practitioners. This layered model shows the interrelation between UX and functional and quality requirements. The model is developed based on current models of UX and software quality characteristics. Through the model we highlight the main differences between various requirement types in particular essentially subjective and accidentally subjective quality requirements. We also present the result of an initial validation of the model through interviews with 12 practitioners and researchers. Our results show that the model can raise practitioners' knowledge and awareness of UX in particular in relation to requirement and testing activities. It can also facilitate UX-related communication among stakeholders with different backgrounds.Comment: 6th International Working Conference on Human-Centred Software Engineerin

Using Cybersecurity Body of Knowledge (CyBOK) Case Studies to Enhance Student Learning

One of the central aspects of specialization in modern software engineering is security engineering. With contemporary systems being networked and entrusted with mission-critical functionality, cybersecurity is an essential quality that must be developed into the system from the first moment. This comprises issues such as privacy, authentication, robustness against vulnerabilities, and hardness against external attacks. To do so, software engineering specialists with appreciation for the detailed intricacies of security engineering as well as broad experience are required. The Cybersecurity Body of Knowledge (CyBOK, [1]) has been developed to serve, among other uses, as an instructional reference for educators to prepare the next generation of security engineers in this respect. While the CyBOK describes the intricacies of security engineering in plentiful detail, it remains up to the instructor to convey this curriculum in a way that fosters understanding and forms experience as well as competencies in the learner. To aid the instructors who use the CyBOK, we have devised a library of 18 case studies that are specifically designed to target CyBOK knowledge areas. The case studies are sufficiently detailed to allow adoption with minimal overhead on the instructor. In this paper, we describe the case study mapping to the CyBOK, and classroom results of one exemplary case study, demonstrating improved understanding by students

OpenUP/MDRE: A Model-Driven Requirements Engineering Approach for Health-Care Systems

The domains and problems for which it would be desirable to introduce information systems are currently very complex and the software development process is thus of the same complexity. One of these domains is health-care. Model-Driven Development (MDD) and Service-Oriented Architecture (SOA) are software development approaches that raise to deal with complexity, to reduce time and cost of development, augmenting flexibility and interoperability. However, many techniques and approaches that have been introduced are of little use when not provided under a formalized and well-documented methodological umbrella. A methodology gives the process a well-defined structure that helps in fast and efficient analysis and design, trouble-free implementation, and finally results in the software product improved quality. While MDD and SOA are gaining their momentum toward the adoption in the software industry, there is one critical issue yet to be addressed before its power is fully realized. It is beyond dispute that requirements engineering (RE) has become a critical task within the software development process. Errors made during this process may have negative effects on subsequent development steps, and on the quality of the resulting software. For this reason, the MDD and SOA development approaches should not only be taken into consideration during design and implementation as usually occurs, but also during the RE process. The contribution of this dissertation aims at improving the development process of health-care applications by proposing OpenUP/MDRE methodology. The main goal of this methodology is to enrich the development process of SOA-based health-care systems by focusing on the requirements engineering processes in the model-driven context. I believe that the integration of those two highly important areas of software engineering, gathered in one consistent process, will provide practitioners with many benets. It is noteworthy that the approach presented here was designed for SOA-based health-care applications, however, it also provides means to adapt it to other architectural paradigms or domains. The OpenUP/MDRE approach is an extension of the lightweight OpenUP methodology for iterative, architecture-oriented and model-driven software development. The motivation for this research comes from the experience I gained as a computer science professional working on the health-care systems. This thesis also presents a comprehensive study about: i) the requirements engineering methods and techniques that are being used in the context of the model-driven development, ii) known generic but flexible and extensible methodologies, as well as approaches for service-oriented systems development, iii) requirements engineering techniques used in the health-care industry. Finally, OpenUP/MDRE was applied to a concrete industrial health-care project in order to show the feasibility and accuracy of this methodological approach.Loniewski, G. (2010). OpenUP/MDRE: A Model-Driven Requirements Engineering Approach for Health-Care Systems. http://hdl.handle.net/10251/11652Archivo delegad

AO-WAD: a proposal for accessible design within web engineering approaches

Mature Web Engineering (WE) approaches provide good resources for developing Web 2.0 applications. The state-of-the-art shows that many of these approaches have evolved for providing support to different issues during the development process of these kind of applications, as business-to-business process modeling, context-awareness, RIAs and live-regions or quality factors for improving users’ experience. Focusing on Accessibility, having full support usually means being tightly coupled to host process and models, which prevents conveying this support to other WE approaches. In this paper we introduce our proposal, called Aspect-Oriented Web Accessibility Design (AO-WAD), and generalize its use within WE approaches to provide Accessibility support applying Aspect-Orientation techniques. We embed AO-WAD into OOHDM and UWE methods to propitiate an ease understanding through a motivating example.Eje: Workshop Ingeniería de software (WIS)Red de Universidades con Carreras en Informática (RedUNCI

AO-WAD: a proposal for accessible design within web engineering approaches

Mature Web Engineering (WE) approaches provide good resources for developing Web 2.0 applications. The state-of-the-art shows that many of these approaches have evolved for providing support to different issues during the development process of these kind of applications, as business-to-business process modeling, context-awareness, RIAs and live-regions or quality factors for improving users’ experience. Focusing on Accessibility, having full support usually means being tightly coupled to host process and models, which prevents conveying this support to other WE approaches. In this paper we introduce our proposal, called Aspect-Oriented Web Accessibility Design (AO-WAD), and generalize its use within WE approaches to provide Accessibility support applying Aspect-Orientation techniques. We embed AO-WAD into OOHDM and UWE methods to propitiate an ease understanding through a motivating example.Eje: Workshop Ingeniería de software (WIS)Red de Universidades con Carreras en Informática (RedUNCI