Blockchain and Smart Contracts for Secure, Transparent, and Immutable Student Feedback Management in OBE

Abstract

Blockchain technology has emerged as a transformative solution for ensuring transparency, security, and immutability in student feedback management within OBE frameworks. Traditional feedback systems often suffer from inefficiencies, data manipulation risks, and lack of trust, necessitating the integration of decentralized and tamper-proof mechanisms. This book chapter explores the potential of blockchain and smart contracts in addressing these challenges by establishing a secure, transparent, and immutable student feedback system. The study examines the scalability limitations of blockchain networks and investigates advanced optimization techniques, including Layer 2 scaling solutions, sharding mechanisms, and hybrid storage models, to enhance performance and efficiency. The chapter highlights energy-efficient consensus protocols to improve sustainability in educational blockchain applications. Data availability challenges in off-chain storage and interoperability issues with existing LMS are also analyzed to ensure seamless adoption. By leveraging blockchain’s decentralized architecture, cryptographic security, and automated validation mechanisms, institutions can enhance the reliability and accountability of student feedback systems. The findings contribute to the ongoing discourse on blockchain applications in education, offering a scalable and efficient model for feedback management in OBE.