Looking at these two different cases separately.
In supply chain, I need to put the tax invoice with some key info like company name in the memo. It is a common case in China not only in supply chain management. A team in a travel agency also have the same requirement.
Is the data going into the memo for the benefit of the sender or the receiver?
What you're describing is familiar. Orders and payments move through systems; the the client information, the vendor information in the procurement system, the purchase order number, the invoice number, the payment's check number and depending on the jurisdiction, the tax information has to be tracked and linked together so the accounting systems, inventory system, and manufacturing execution system of the multiple companies and governments involved can keep track of what's owned and to whom.
Is what you're describing putting the data structures associated with the value transfer / ledger manipulation that is meant for the non-ledger systems into the memo field for storage in the ledger. So the requirement is data storage and message passing of arbitrary data. Is this something we should expect to put in a generalized wallet application? Should any Stellar client be able to encode the appropriate data strcuture and decode the data anohter client has placed on the ledger?
I will say I expect that our wallet applications should be able to utilize many of the features defined by SDF, but this message passing and handling and the data storage seems like a little much for an application on a phone someone uses to check their balances and pay for coffee. Or is the expectation going to be that this would be a custom application with access to a funding wallet?
Am I missing anything in this use case?
A exchange called Julang, want to put some op_code in the memo. So it can connect to their high performance trading system.
I have no experience with high performance trading systems, so please let me know if anything I'm saying doesn't match up.
The intent here seems to be about messaging--sending instructions to the trading system. Will all the op-codes be assoicated with a value transfer or ledger manipulation on Stellar? Or will there be any instances where an op-code is sent into the trading system that doesn't involve changing a balance of some asset, control of an account or the properties of account on Stellar? Is the communication channel one-way or two-way?
As an exchange, are they "living out of Stellar" or is the integration more them being a gateway between Stellar and their trading platform?
And again, will participating in this traffic be something that's expected of any random wallet?
