Based on Consortium Blockchain to Design a Credit Verifiable Cross University Course Learning System

Table 4

The comparison of the previous schemes and the proposed scheme.

Authors	Year	Objective	1	2	3	4	5
Turkanović et al. [9]	2018	Higher education credit platform	Y	N	N	N	N
Zhao et al. [10]	2020	System for student e-portfolio assessment	Y	N	Y	N	N
Mishra et al. [11]	2021	System for sharing students’ credentials	Y	N	N	Y	Y
Jeong et al. [12]	2021	Multilateral personal portfolio authentication system	Y	N	Y	N	N
The proposed scheme	2021	A university course learning system with credit verifiable	Y	Y	Y	Y	Y

Notes: 1—propose an architecture or framework, 2—verifiable learning process, 3—no token consumption, 4—encrypt private information, 5—security analysis, Y—yes, N—no.