Literature Review to Collect Conceptual Variables of Scenario Methods for Establishing a Conceptual Scenario Framework

Abstract

Over recent decades, scenarios and scenario-based software/system engineering have been actively employed as essential tools to handle intricate problems, validate requirements, and support stakeholders' communication. However, despite the widespread use of scenarios, there have been several challenges for engineers to more willingly utilize scenario-based engineering approaches (i.e., scenario methods) in their projects. First, the term scenario has numerous published definitions, thus lacking in a well-established shared understanding of scenarios and scenario methods. Second, the conceptual basis for engineers developing or employing scenarios is missing. To establish shared understanding and to find common denominators of scenario methods, this study leverages well-defined metamodeling and conceptualization that systematically investigate the concepts under analysis and define core entities and their relations. By conducting a semi-systematic literature review, conceptual variables are collected and conceptualized as a conceptual meta-model. As a result, this study introduces scenario variables (SVs) that represent constructs/semantics of scenario descriptions, according to 4 levels of constructs of a scenario method. To evaluate the comprehensibility and applicability of the defined variables, we analyze five existing scenario methods and their instances in automated driving system (ADS) domains. The results showed that our conceptual model and its constituent scenario variables adequately support the understanding of a scenario method and provide a means for comparative analysis between different scenario methods.

Design/Engineering For Production (DEFP) and Shipyard: A Review on the Malaysian Technological Aspects and Practices

“…On the contrary to Serial Engineering process, Concurrent Engineering (CE), which emerged in 1990s, focuses on tasks' timing and duration across its entire organization with the goals of reducing task's time without any apparent loss in value to the finished product or services [33][34][35] It includes involvement of personnel from all required disciplines: engineers or non-engineers [36] In CE, all major parties involve in getting the product to market and contribute to the development of the product [37] The approach requires a parallel interactive (managed) and cooperative multidisciplinary team approach to product and process development. In short, CE is leveraging the teamwork to handle information and make informed decisions [27].…”