Requirements Model for Cyber-Physical System

TL;DR

This paper proposes a requirements model for cyber-physical systems to improve the collection, refinement, and clustering of requirements, aiming to reduce conflicts and redundancies early in development, demonstrated through a transport system case study.

Contribution

It introduces a novel requirements model specifically designed for CPS that guides the gathering and refinement process, addressing gaps in existing research.

Findings

Effective requirements clustering reduces conflicts and redundancies.

Application to transport system validates the model's practicality.

Refined requirements improve development efficiency.

Abstract

The development of cyber-physical system (CPS) is a big challenge because of its complexity and its complex requirements. Especially in Requirements Engineering (RE), there exist many redundant and conflict requirements. Eliminating conflict requirements and merged redundant/common requirements lead a challenging task at the elicitation phase in the requirements engineering process for CPS. Collecting and optimizing requirements through appropriate process reduce both development time and cost as every functional requirement gets refined and optimized at very first stage (requirements elicitation phase) of the whole development process. Existing researches have focused on requirements those have already been collected. However, none of the researches have worked on how the requirements are collected and refined. This paper provides a requirements model for CPS that gives a direction about the requirements be gathered, refined and cluster in order to developing the CPS independently. The paper also shows a case study about the application of the proposed model to transport system.