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uncefact / spec-untp

UN Transparency Protocol
https://uncefact.github.io/spec-untp/
GNU General Public License v3.0
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Supporting price negotiations based on a DPP for a product that will be produced in the future #43

Open zachzeus opened 3 months ago

zachzeus commented 3 months ago

Some product claims may not be fully resolvable when the negotiation between buyer and seller is occurring. Is there a method that should or could be added to the protocol that will allow suppliers and consumers the ability to price the value of claims in the future.

monkeypants commented 3 months ago

DPPs are at the SKU or batch/item level. I think this question relates to proposed items or proposed batches where the items are known in advance.

For example: if I am negotiating a contract for future sale, I might make a basket of claims (and provide evidence) based on the information currently available, which the buyer uses to negotiate a price. When the sale is struck in the future, a different version of the basket of claims might be available. As a buyer, I will want to specify "same or better" for some claims.

The DPP link resolver may need access to the history of product passport versions. A DPP may need a reference "supersedes" the previous version of the DPP in a chain.