A Survey on Personal Data Cloud

Table 2

Comparison between existing PDC prototypes/systems.

PDC prototypes	Data collection from services	Personal data storage	Semantics unification	Privacy and access control	Open API for personal data access	Personal data visualization	Supporting service collaboration
di.me	Automatic	File	Ontology	YES	NO	YES	NO
PCB	Semiautomatic	File	RDF & ontology	NO	YES	NO	NO
PCP	Automatic	N/A	N/A	YES	NO	NO	YES
PIM	Semiautomatic	File	Ontology	NO	NO	NO	NO
openPDS	Semiautomatic	File	N/A	YES	NO	YES	NO
PL	Automatic	File	Linked data	YES	NO	NO	NO
PC	Automatic	File	N/A	NO	YES	YES	NO