From research I found DIA to be an open source Oracle network which provides asset traders trustworthy data to source, share and supply.
It supplies trustworthy financial data to decentralized finance applications for reliability in their product building.
It is transparent in its data as it is an open source and its data are subjected to verification by the stakeholders for genuineness, its decentralized means of sourcing data enables easy scalability. DIA depends on the crypto economic incentives with its community wisdom to deliver its services.
It is not bad course to explore DIA and I free recommend it for transparency, validity, reliability and scalability.