Table 2.

Consolidated requirements of stakeholder groups for a blockchain-based electronic health record.

No and group		Requirement	References	E1	E2	E3	E4	E5	E6	E7	E8	E9
Primary stakeholders
	R1	Data securitya	[7,12,20]	—b	x	x	x	x	x	x	—	x
	R2	Data privacya	[7,12,20]	x	x	x	x	x	x	x	—	x
	R3	Access/permission control, data sovereignty	[8,20-22]	x	x	—	x	—	—	x	—	x
	R4	Identity confirmationa	[8,20]	x	x	—	x	—	—	x	—	x
	R5	Manipulation protection/data integritya	[7,21,23,24]	x	—	x	x	—	x	x	—	x
	R6	Complete health recorda	[21]	x	x	x	x	x	—	x	x	x
	R7	Performancea	[7]	—	x	—	—	x	—	x	—	x
	R8	User friendly designa	[25]	x	x	x	x	—	—	x	x	x
	R9	Context-specific informationa	[25]	—	x	x	—	x	x	x	x	—
	R10	Data and file storinga	[20]	x	x	x	x	x	x	x	—	x
	R11	Data and file sharinga	[8,12,20,21]	x	x	x	x	x	x	x	x	x
	R12	Interoperable and consistent data standardsa	[12,20]	x	x	—	x	—	x	x	x	x
	R13	Intersectoral communicationa	[12,21]	x	x	x	—	x	x	x	—	x
	R14	Ensuring trusted relationshipsa	[12,20]	—	x	—	—	—	—	x	—
	R15	CRUDc rights	[8,21]	x	—	x	—	x	—	x	x	x
	R16	Verification modus	[8,21]	x	x	—	—	—	—	x	—	x
	R17	Emergency pass	[26]	—	x	x	—	—	—	x	—	x
	R18	Medication/care plan	[27,28]	x	—	x	x	—	x	—	—	x
	R19	Tracking of state transitionsa	[8]	x	—	x	—	x	x	x	x	x
	R20	General administrative issues	—	—	x	—	—	x	—	x	—	—
	R21	Synchronization to off-chain dataa	[8]	—	—	—	—	—	—	—	—	—
	R22	Notification services	[8]	x	x	—	x	x	—	x	—	x
	R23	Modularitya	[20]	—	—	—	x	—	—	x	—	—
	R24	Patient centration	[12]	x	—	—	—	x	—	—	—	x
	R25	Workflow supporta	[29]	x	x	—	x	—	x	x	—	—
	R26	Integration into existing systemsa	[8,29]	x	x	x	x	—	x	—	x	x
	R27	Transfer sheet	—	—	x	x	—	x	x	x	—	x
Secondary stakeholders
	R28	Scalabilitya	[7,12,20]	—	—	—	x	—	x	x	—	—
	R29	Invoice management	—	x	x	x	—	—	—	x	—	—
	R30	Modus for relatives	—	—	x	—	—	x	—	x	—	—x
Tertiary stakeholders
	R31	Access to consolidated dataa	[10]	—	x	—	—	—	—	x	—	x
	R32	Statistics	[10,30]	—	x	—	x	—	—	x	—	—
	R33	Clinical research	[31]	—	x	—	x	—	—	x	—	x
	R34	Predictive analyses	[31]	—	x	—	x	—	—	x	—	x

^aTo avoid multiple entries, requirements that apply to all stakeholder groups, for example, data security and data privacy, are listed once.

^bNot applicable.

^cCRUD: create, read, update, and delete.