Use case modeling in the Unified Modeling Language (UML) is a popular text-based tool for systems analysis and design. Use cases can be used with or without supporting use case diagrams. This paper uses an experiment to explore the effectiveness of including a use case diagram with a set of use cases. The Cognitive Theory of Multimedia Learning is used to hypothesize that the use case diagram i...

Sysiphus, a suite of tools developed at the Technische Universität München [3,1], enables users to develop and share system models and to discuss, justify, and collaborate within the same environment. On the one hand, users create model elements (e.g., use cases, subsystem decompositions, class models, test specifications) and organize them into documents. On the other hand, they discuss models...

The Unified Modeling Language has been shown to be complex and difficult to learn. The difficulty of learning to build the individual diagrams in the UML, however, has received scant attention. In this paper, we consider the case of the UML sequence diagram. Despite the fact that these diagrams are among the most frequently used in practice, they are difficult to learn to build. In this paper, ...

A recently introduced master program offering a Business Modelling track in the authors' university includes several courses that touch on conceptual modelling topics. They cover both modelling with well-known languages (UML, BPMN etc.), as well as the development of domain-specific modelling software driven by targeted requirements. Consequently, the study program aims to support two complemen...

A process modeling method was raised based on cooperation pattern in airplane design, aiming at the difficulty of complexity and enormous magnitude of airplane design process. Investigating design steps, tools and organization of airplane design experienced, summarized four cooperation patterns. Feature of these patterns were analyzed, by distinguish their application backgrounds and scenarios....

EXECUTIVE SUMMARY This case focuses on the development of information systems for not-for-profit volunteerbased organizations. Specifically, we discuss an information system project for the Volunteer Center of Racine (VCR). This case targets the analysis and design phase of the project using the Unified Modeling Language (UML) methodology, database modeling, and aspects of project management in...

At present time most system engineers do not have access to cognitive work analysis knowledge or training in terms that they could understand and apply in the system design process. This may lead to specifying systems requirements that do not account for cognitive strengths and limitations of the prospective users. This paper proposes integration of cognitive work demands in the systems enginee...

Introduction: Nearly half of occupational accidents in Iran occur in construction sites. Therefore, modeling of occupational accidents in these sites is one of the solutions to design safety strategies to reduce occupational accidents in the field of construction. This study was designed and conducted with the aim of modeling the cause-consequence of accidents in construction sites. Material a...