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A Human-Centered Requirements Modelling Approach through Cognitive Maps, Model-Driven Engineering and Domain Specific Modelling
{ Wed, 16 Jul 2014, 14h00 }

By: Fernando Wanderley  [ show info ]

One of the main goals of requirements engineering is “conveying and promoting the understanding of the application domain". Consequently, models can improve the requirements engineering process and facilitate common understanding of domains and processes between users and system engineers. The user perception (cognitive effectiveness) of a modelling language is likely to have an impact on whether or not users perceive a language as useful and become interested in using it. Thus, visual requirements models are one of the most effective ways to identify system requirements and user needs. Visualization, at early phases, keeps stakeholders interested and engaged, which is essential to diminish the semantic gap between domain experts and requirements engineers. The stakeholder’s engagement is a crucial factor to improve quality in the conceptual modelling process. Recent empirical results reinforced the importance of effective communication by requirements models with naïve users. According to their study, the visual notations used by requirements models (e.g.: i*) must improve the semantic transparency, i.e. the clarity, objectivity and meaning of the visual notations adopted, thus reducing the cognitive load. In this sense, Thus, this approach aims to design a visual and cognitive requirements language based on pillars of frameworks of quality for conceptual modelling: (i) LSS Framework, (ii) Krogstie and (iii) the Moody “Physics of Notations” theory. Besides these theoretical foundations, the approach was systematic built through the synergy among the model-driven engineering, domain-specific modelling language techniques and the cognitive properties of mind maps model. In this sense, this seminar presentation has a main goal to discuss and explore the actual stages, initial experimental evaluation (Best Paper at ICCSA’14) and future works related to planning evaluation and assessment of 'Cognitive Effort' of this approach from the (naive users) viewpoints.

Hosted by: Software Systems

Location: DI seminars room

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