Digitization is about asset descriptions and publishing it on the market. Tokenization is about asset description, validation by oracles, asset price calculation, automated audit, calculation of cash flows based on its price, and execution of the Smart Deal.
One of the major reasons for tokenization of an asset is the possibility to avoid fraud that may be present in the case of classic digitization. A good can be digitized but might also contain false information in its description. Often it is difficult for an asset owner to see the real information about cash flows even if there is no intention to hide them. BANKEX Proof-of-Asset Protocol provides the proof that an asset and its cash flows are authentic.
https://bankex.com/en/