Process and Data Logic Integration: Logical Links between UML Use Case Narratives and ER Diagrams

We propose a methodology for providing clear and consistent integration of the process and data logic in the analysis stage of information systems’ development lifecycle. While our proposed approach is applicable across a variety of data and process modeling schemas, in this paper we discuss it in the context of UML use cases for process modeling and ER diagrams for data modeling. We illustrate our approach through an example of modeling an execution of a retail transaction. In our example we integrate a step-by-step processmodel and the corresponding data model at the attribute level detail. We discuss the potential benefits of this approach by illustrating how this methodology, by providing a critical link between process and data models, can result in better conceptual testing early in the analysis process, ensuring better semantic quality of both process and data models

Do travelers' reviews depend on the destination? An analysis in coastal and urban peer-to-peer lodgings

Our research applies a service, feature-oriented approach to deeply explore the subjective experiences shared publicly by Airbnb guests in their reviews. Our processed data set contains 73,557 reviews of Airbnb stays in coastal and urban destinations between 2017 and 2020. A topic modeling based on the BERTopic approach is applied to detect dense clusters of reviews and identify one highly relevant and interpretable topic per cluster related to core and essential sharing services and surrounding features. Our study, therefore, allows a higher understanding of the relationships between urban versus coastal destinations and guests' preferences. Furthermore, it enables hosts to differentiate the touristic short-rentals lodgings according to customer experiences

Use Cases and Collaboration Scenarios: how employees use socially-enabled Enterprise Collaboration Systems (ECS)

In recent years we have seen the emergence of a new type of collaboration software, the so-called “Enterprise Social Software”. The “social features” of this software type have stimulated a renewed interest in Enterprise Collaboration Systems (ECS). In this article we present findings from a longitudinal research project on the introduction and use of ECS in companies. We argue that ERP Systems and ECS are inherently different and that the process-paradigm that is common to ERP cannot be applied identically to ECS. To address this issue, we suggest the two concepts use case and collaboration scenario for the analysis and description of collaboration activity in companies. From the literature and 26 case studies we identified typical use cases and collaboration scenarios that can serve as blueprints for ECS introduction projects. The longitudinal objective of our research is to assist companies with their ECS initiatives and to provide them with a catalog of existing use cases and collaboration scenarios from various industry settings

Summer of Tinkering: Sociocultural Views of Children's Learning while Tinkering in Social and Material Worlds

abstract: As interest in making and STEM learning through making and tinkering continue to rise, understanding the nature, process, and benefits of learning STEM through making have become important topics for research. In addition to understanding the basics of learning through making and tinkering, we need to understand these activities, examine their potential benefits, and find out ways to facilitate such learning experiences for all learners with resources that are readily available. This dissertation is a study of children’s learning while tinkering inspired by the Educational Maker Movement. It is motivated by the projects that children playfully create with broken toys, art and craft resources, and other found objects, and the connections of such activities to learning. Adopting a sociocultural lens this dissertation examines eight to twelve-year-olds’ learning while tinkering in collaboration with friends and family, as well as on their own. Using a case study methodology and studying interactions and transactions between children, materials, tools, and designs this study involves children learning while tinkering over a week-long workshop as well as over the summer in the Southwest. The three hallmarks of this study are, first, an emphasis on sociocultural nature of the development of tinkering projects; second, an emphasis on meaning making while tinkering with materials, tools, and design, and problem-solving; and third, an examination of the continuation of tinkering using newly acquired tools and skills beyond the duration of the workshop. In doing so, this dissertation contributes to the ongoing discussion of children’s playful tinkering, how and why it counts as learning, and STEM learning associated with tinkering. Implications for future learning and the ways in which tinkering connects to children’s everyday fabric of activities are considered.Dissertation/ThesisDoctoral Dissertation Learning, Literacies and Technologies 201