Design of a Blockchain-Based e-Portfolio Evaluation System to Assess the Education and Teaching Process

Abstract

The e-Portfolio evaluation can truthfully assess the education and teaching process. This technique boasts several advantages: diverse evaluation sub-jects, emphasis on process evaluation, support to individualized develop-ment, and integration between teaching and evaluation. This paper applies blockchain to e-Portfolio evaluation, aiming to solve the thorny issues in tra-ditional e-Portfolio evaluation: privacy protection, data sharing, and infor-mation tracing. Firstly, the functional demand of blockchain-based e-Portfolio evaluation system was analyzed for multiple users: student, teacher, visitor, and administrator. Next, modular design was conducted for the sys-tem, the system boundaries and roles were defined, the relationship between roles was clarified, and a use case was provided to illustrate the client for each user. Based on the functional realization logic of the system, a se-quence diagram was plotted for the realization of system functional demand. Finally, seven chaincodes were designed to satisfy the requirements of the evaluation system. The advantages of the system performance were verified through experiments. The research results provide theoretical and practical bases for the application of blockchain in other evaluation tasks of education and teaching.

Metaverse Solutions for Educational Evaluation

“…Blockchain uses consensus-based cryptography to protect the anonymity of data, and data can only be accessed by an individual user's private key, maximizing the security and privacy of evaluation data. Although various prototype systems for grade authentication and credit confirmation have been developed to date [64,65], they have not been widely implemented.…”

Blockchain for Credibility in Educational Development: Key Technology, Application Potential, and Performance Evaluation

“…Widayanti et al [98] showed that the assessment process using the blockchain technology as the underlying structure disrupts the traditional educational model and the results of automated assessment are more convincing. Zheng [99] created a learning assessment system that evaluates students in an anonymous way and the system is able to obtain the results quickly, ensuring that the results are objective and fair. Zhao et al [100] proposed a blockchain technology-based student competency evaluation system that focuses on monitoring students' educational activities, analyzing learning data, and developing unifed evaluation criteria through a PoA consensus protocol to objectively and comprehensively evaluate students' personal skills demonstrated in educational activities and give reference to students' future job search directions.…”

A Consortium Blockchain-Based Secure and Trusted Electronic Portfolio Management Scheme

“…However, there still exist several technical challenges that must be overcome to successfully implement these schemes. A design of a blockchain-based e-portfolio evaluation system that assesses the education and teaching processes is proposed in [ 33 ]. Other studies [ 34 , 35 , 36 ] presented practical implementations of blockchain-enabled solutions for managing life-long learning achievement records beyond transcripts and certificates.…”