| 1 Definition | 2 Protocol | 3 Syntax | 4 Semantics |
1 Definition
The Action of a User1 (“Sender”) requesting that a Transaction Service:
1. Assign Rights to an Asset to User2 (“Receiver”).
2. Cause:
2.1. Wallet1 of User1 to be increased by Value1.
2.2. Wallet2 of User2 to be decreased by Value2.
2.3. Walleti of a set of Services enabling/facilitating the Transaction to be increased by Valuei.
2 Protocol
- User sends Transact PA Request including Transaction (Status=Model) to Transact.
- If Transact is a free service, Goto Transact.
- If Transact is a pay service:
- User sends Transact PA Request with Service Pricing Model (Status=Model) to Transact.
- Transact sends Transact PA Response:
- If Transact PA Response includes Status=Err, goto End.
- If Transact PA Response includes Status=Ack and Service Pricing Model with Transaction (both Status=Model), User:
- Transacts Value contained in Transaction.
- Sends Transact PA Request including Service Pricing Model with Transaction (both Status=Final) to Transact.
- Transact: Transact
- Increases and decreases the Wallets in Transaction.
- Sends Transact PA Response including
- “Ack” to User
- Service Pricing Model (Status=Final), if Transact is a pay Service.
- End
3 Syntax
https://schemas.mpai.community/MMM4/V2.1/actions/TransactPA.json
4 Semantics
| Label | Description |
| Header | Transact Process Action Header – Standard “USP-TRP-V” |
| MInstanceID | Identifier of M-Instance. |
| MEnvironmentID | Identifier of M-Environment. |
| TransactPAData | Data included in the Transact Process Action. |
| – Time | Time of PA request emission and Time of PA request execution. |
| – RQ-Complements | Complements in PA Request. |
| – With Transaction | A Transaction Item. |
| – With SPM | Service Pricing Model, if Transact is a pay service. |
| – RS-Complements | Complements in PA Response. |
| – With PAStatus | Status of PA Request. |
| – With SPM | Service Pricing Model, if Transact is a pay service. |
| – Ack | If PA Request could be performed. |
| – Err | If PA Request could not be performed. |
| – FaultyPA | Faulty PA Request. |
| – IncID | Incorrect ID. |
| – InsRights | Insufficient Rights. |
| – InsValue | Insufficient Value in Wallet. |
| Trace | Authentication provenance information and time of PA production. |
| DescMetadata | Descriptive Metadata. |