casp.001.001.01
This financial service is a request by the Sale system of a service to execute on POI system.
Message Construction
Every ISO20022 message has at the highest level what we call ‘building blocks’. Because the message is constructed as immutable records, the association is by composition. Below you can see the relationship between the message and its constituent building blocks: For comparison, see the ISO20022 official specification
classDiagram direction LR %% SaleToPOIServiceRequestV01 recursion level 0 with max 0 SaleToPOIServiceRequestV01 *-- "1..1" Header37 : Header SaleToPOIServiceRequestV01 *-- "1..1" ServiceRequest2 : ServiceRequest SaleToPOIServiceRequestV01 *-- "0..1" ContentInformationType18 : SecurityTrailer
Now, we will zero-in one-by-one on each of these building blocks.
Header building block
Set of characteristics related to the transfer of the request. Set of characteristics related to the protocol. For comparison, see the ISO20022 official specification
classDiagram direction tb %% Header37 recursion level 0 with max 1 class Header37{ MessageFunction RetailerMessage1Code ProtocolVersion IsoMax6Text ExchangeIdentification IsoMax35Text CreationDateTime IsoISODateTime } Header37 *-- "1..1" GenericIdentification171 : InitiatingParty Header37 *-- "0..1" GenericIdentification171 : RecipientParty Header37 *-- "0..0" Traceability6 : Traceability %% GenericIdentification171 recursion level 1 with max 1 class GenericIdentification171{ Identification IsoMax35Text Type PartyType3Code Issuer PartyType4Code Country IsoMin2Max3AlphaText ShortName IsoMax35Text } GenericIdentification171 *-- "0..1" NetworkParameters5 : RemoteAccess GenericIdentification171 *-- "0..1" Geolocation1 : Geolocation %% GenericIdentification171 recursion level 1 with max 1 class GenericIdentification171{ Identification IsoMax35Text Type PartyType3Code Issuer PartyType4Code Country IsoMin2Max3AlphaText ShortName IsoMax35Text } GenericIdentification171 *-- "0..1" NetworkParameters5 : RemoteAccess GenericIdentification171 *-- "0..1" Geolocation1 : Geolocation %% Traceability6 recursion level 1 with max 1 class Traceability6{ ProtocolName IsoMax35Text ProtocolVersion IsoMax6Text TraceDateTimeIn IsoISODateTime TraceDateTimeOut IsoISODateTime } Traceability6 *-- "1..1" GenericIdentification171 : RelayIdentification
Header37 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
MessageFunction | Identifies the type of process related to the message. | RetailerMessage1Code - Required 1..1 |
ProtocolVersion | Version of the acquirer protocol specifications. | IsoMax6Text - Required 1..1 |
ExchangeIdentification | Unique identification of an exchange occurrence. | IsoMax35Text - Required 1..1 |
CreationDateTime | Date and time at which the message was created. | IsoISODateTime - Required 1..1 |
InitiatingParty | Unique identification of the partner that has initiated the exchange. | GenericIdentification171 - Required 1..1 |
RecipientParty | Unique identification of the partner that is the recipient of the message exchange. | GenericIdentification171 - Optional 0..1 |
Traceability | Identification of partners involved in exchange from the merchant to the issuer, with the relative timestamp of their exchanges. | Traceability6 - Unknown 0..0 |
ServiceRequest building block
Information related to a service request. This component defines the service to be called. For comparison, see the ISO20022 official specification
classDiagram direction tb %% ServiceRequest2 recursion level 0 with max 1 class ServiceRequest2{ ServiceContent RetailerService2Code } ServiceRequest2 *-- "1..1" CardPaymentEnvironment73 : Environment ServiceRequest2 *-- "1..1" CardPaymentContext27 : Context ServiceRequest2 *-- "0..1" PaymentRequest1 : PaymentRequest ServiceRequest2 *-- "0..1" ReversalRequest1 : ReversalRequest ServiceRequest2 *-- "0..1" BalanceInquiryRequest2 : BalanceInquiryRequest ServiceRequest2 *-- "0..1" LoyaltyRequest1 : LoyaltyRequest ServiceRequest2 *-- "0..1" StoredValueRequest2 : StoredValueRequest ServiceRequest2 *-- "0..1" BatchRequest1 : BatchRequest ServiceRequest2 *-- "0..1" EnableServiceRequest1 : EnableServiceRequest ServiceRequest2 *-- "0..1" CardAcquisitionRequest2 : CardAcquisitionRequest ServiceRequest2 *-- "0..0" SupplementaryData1 : SupplementaryData %% CardPaymentEnvironment73 recursion level 1 with max 1 CardPaymentEnvironment73 *-- "0..1" Acquirer9 : Acquirer CardPaymentEnvironment73 *-- "0..1" Organisation32 : Merchant CardPaymentEnvironment73 *-- "0..1" PointOfInteraction9 : POI CardPaymentEnvironment73 *-- "0..1" PaymentCard28 : Card CardPaymentEnvironment73 *-- "0..1" Check1 : Check CardPaymentEnvironment73 *-- "0..0" StoredValueAccount1 : StoredValueAccount CardPaymentEnvironment73 *-- "0..0" LoyaltyAccount1 : LoyaltyAccount CardPaymentEnvironment73 *-- "0..1" CustomerDevice1 : CustomerDevice CardPaymentEnvironment73 *-- "0..1" CustomerDevice1 : Wallet CardPaymentEnvironment73 *-- "0..1" CardPaymentToken4 : PaymentToken CardPaymentEnvironment73 *-- "0..1" Cardholder14 : Cardholder CardPaymentEnvironment73 *-- "0..1" ContentInformationType17 : ProtectedCardholderData CardPaymentEnvironment73 *-- "0..1" RetailerSaleEnvironment2 : SaleEnvironment %% CardPaymentContext27 recursion level 1 with max 1 CardPaymentContext27 *-- "0..1" PaymentContext26 : PaymentContext CardPaymentContext27 *-- "0..1" SaleContext3 : SaleContext CardPaymentContext27 *-- "0..1" CardDirectDebit2 : DirectDebitContext %% PaymentRequest1 recursion level 1 with max 1 PaymentRequest1 *-- "0..1" CardPaymentTransaction91 : PaymentTransaction PaymentRequest1 *-- "0..0" LoyaltyRequestData1 : LoyaltyData %% ReversalRequest1 recursion level 1 with max 1 class ReversalRequest1{ ReversalReason ReversalReason1Code ReversedAmount IsoImpliedCurrencyAndAmount } ReversalRequest1 *-- "0..1" CardPaymentTransaction91 : OriginalPaymentTransaction ReversalRequest1 *-- "0..1" CustomerOrder1 : CustomerOrder %% BalanceInquiryRequest2 recursion level 1 with max 1 BalanceInquiryRequest2 *-- "0..1" PaymentAccountRequest1 : PaymentAccountRequest BalanceInquiryRequest2 *-- "0..1" LoyaltyAccountRequest1 : LoyaltyAccountRequest BalanceInquiryRequest2 *-- "0..1" StoredValueRequest2 : StoredValueAccountRequest %% LoyaltyRequest1 recursion level 1 with max 1 LoyaltyRequest1 *-- "0..1" CustomerOrder1 : CustomerOrder LoyaltyRequest1 *-- "1..1" LoyaltyTransaction1 : Transaction LoyaltyRequest1 *-- "0..0" LoyaltyRequestData1 : Data %% StoredValueRequest2 recursion level 1 with max 1 StoredValueRequest2 *-- "1..0" StoredValueData2 : Data %% BatchRequest1 recursion level 1 with max 1 class BatchRequest1{ RemoveAllFlag IsoTrueFalseIndicator } BatchRequest1 *-- "0..0" ITransactionToPerform1Choice : TransactionToPerform %% EnableServiceRequest1 recursion level 1 with max 1 class EnableServiceRequest1{ TransactionAction TransactionAction1Code ServicesEnabled RetailerService2Code } EnableServiceRequest1 *-- "0..1" ActionMessage6 : DisplayOutput %% CardAcquisitionRequest2 recursion level 1 with max 1 class CardAcquisitionRequest2{ AllowedPaymentBrand IsoMax35Text AllowedLoyaltyBrand IsoMax35Text ForceCustomerSelectionFlag IsoTrueFalseIndicator TotalAmount IsoImpliedCurrencyAndAmount PaymentType CardPaymentServiceType13Code CashBackFlag IsoTrueFalseIndicator SaleToPOIData IsoMax70Text SaleToAcquirerData IsoMax70Text SaleToIssuerData IsoMax70Text } %% SupplementaryData1 recursion level 1 with max 1 class SupplementaryData1{ PlaceAndName IsoMax350Text } SupplementaryData1 *-- "1..1" IsoSupplementaryDataEnvelope1 : Envelope
ServiceRequest2 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
Environment | Environment of the transaction. | CardPaymentEnvironment73 - Required 1..1 |
Context | Context in which the transaction is performed (payment and sale). | CardPaymentContext27 - Required 1..1 |
ServiceContent | Define the type of service requested. | RetailerService2Code - Required 1..1 |
PaymentRequest | Content of the payment request. | PaymentRequest1 - Optional 0..1 |
ReversalRequest | Content of the reversal request. | ReversalRequest1 - Optional 0..1 |
BalanceInquiryRequest | Content of a Balance Inquiry Request. | BalanceInquiryRequest2 - Optional 0..1 |
LoyaltyRequest | Content of the Loyalty Request. | LoyaltyRequest1 - Optional 0..1 |
StoredValueRequest | Content of a Stored Value Request. | StoredValueRequest2 - Optional 0..1 |
BatchRequest | Content of the Batch Request. | BatchRequest1 - Optional 0..1 |
EnableServiceRequest | Content of the Enable Service Request. | EnableServiceRequest1 - Optional 0..1 |
CardAcquisitionRequest | Content of the Card Acquisition Request. | CardAcquisitionRequest2 - Optional 0..1 |
SupplementaryData | Additional information incorporated as an extension to the message. | SupplementaryData1 - Unknown 0..0 |
SecurityTrailer building block
Trailer of the message containing a MAC or a digital signature. General cryptographic message syntax (CMS) containing data. protected by a MAC or a digital signature. For comparison, see the ISO20022 official specification
classDiagram direction tb %% ContentInformationType18 recursion level 0 with max 1 class ContentInformationType18{ ContentType ContentType2Code } ContentInformationType18 *-- "0..1" AuthenticatedData5 : AuthenticatedData ContentInformationType18 *-- "0..1" SignedData5 : SignedData %% AuthenticatedData5 recursion level 1 with max 1 class AuthenticatedData5{ Version IsoNumber MAC IsoMax140Binary } AuthenticatedData5 *-- "1..0" IRecipient6Choice : Recipient AuthenticatedData5 *-- "1..1" AlgorithmIdentification22 : MACAlgorithm AuthenticatedData5 *-- "1..1" EncapsulatedContent3 : EncapsulatedContent %% SignedData5 recursion level 1 with max 1 class SignedData5{ Version IsoNumber Certificate IsoMax5000Binary } SignedData5 *-- "0..0" AlgorithmIdentification21 : DigestAlgorithm SignedData5 *-- "0..1" EncapsulatedContent3 : EncapsulatedContent SignedData5 *-- "0..0" Signer4 : Signer
ContentInformationType18 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
ContentType | Type of data protection. | ContentType2Code - Required 1..1 |
AuthenticatedData | Data protection by a message authentication code (MAC). | AuthenticatedData5 - Optional 0..1 |
SignedData | Data protected by a digital signatures. | SignedData5 - Optional 0..1 |
Extensibility and generalization considerations
To facilitate generalized design patterns in the system, the SaleToPOIServiceRequestV01 implementation follows a specific implementaiton pattern. First of all, SaleToPOIServiceRequestV01 impleemnts IOuterRecord indicating it is the outermost logical part of the message definition. Like all message wrappers, SaleToPOIServiceRequestV01Document implements IOuterDocument. Because SaleToPOIServiceRequestV01 implements IOuterDocument, it is a suitable template parameter for IOuterDocument, and causes the internal ‘Message’ to be of type SaleToPOIServiceRequestV01.
classDiagram class IOuterRecord SaleToPOIServiceRequestV01 --|> IOuterRecord : Implements SaleToPOIServiceRequestV01Document --|> IOuterDocument~SaleToPOIServiceRequestV01~ : Implements class IOuterDocument~SaleToPOIServiceRequestV01~ { SaleToPOIServiceRequestV01 Message }
Document wrapper for serialization
The only real purpose SaleToPOIServiceRequestV01Document serves is to cause the document to be serialized into the ‘urn:iso:std:iso:20022:tech:xsd:casp.001.001.01’ namespace. Therefore, it will probably be the usual practice to build the message and construct this wrapper at the last minute using SaleToPOIServiceRequestV01.ToDocument() method. The returned SaleToPOIServiceRequestV01Document value will serialize correctly according to ISO 20022 standards.
classDiagram SaleToPOIServiceRequestV01Document *-- SaleToPOIServiceRequestV01 : Document
Sample of message format
This is an abbreviated version of what the message should look like.
<Document xmlns="urn:iso:std:iso:20022:tech:xsd:casp.001.001.01">
<SaleToPOISvcReq>
<Hdr>
<!-- Header inner content -->
</Hdr>
<SvcReq>
<!-- ServiceRequest inner content -->
</SvcReq>
<SctyTrlr>
<!-- SecurityTrailer inner content -->
</SctyTrlr>
</SaleToPOISvcReq>
</Document>
Data from ISO specification
This is the technical data from the specification document.
<messageDefinition
xmi:id="_dTGYUYX_EemxIqbaFEE8-w"
nextVersions="_cFuKEQ1VEeqjM-rxn3HuXQ"
name="SaleToPOIServiceRequestV01"
definition="This financial service is a request by the Sale system of a service to execute on POI system."
registrationStatus="Registered"
messageSet="_urpIICeJEeOCeO5e7islRQ"
xmlTag="SaleToPOISvcReq"
rootElement="Document"
xmlns:xmi="http://www.omg.org/XMI">
<messageBuildingBlock
xmi:id="_dTGYU4X_EemxIqbaFEE8-w"
nextVersions="_cFuKEw1VEeqjM-rxn3HuXQ"
name="Header"
definition="Set of characteristics related to the transfer of the request."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="1"
xmlTag="Hdr"
complexType="_vgI-odj3EeiojJsa6FYyew" />
<messageBuildingBlock
xmi:id="_dTGYVYX_EemxIqbaFEE8-w"
nextVersions="_cFuKFQ1VEeqjM-rxn3HuXQ"
name="ServiceRequest"
definition="Information related to a service request."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="1"
xmlTag="SvcReq"
complexType="_ndUwoYX_EemxIqbaFEE8-w" />
<messageBuildingBlock
xmi:id="_dTGYV4X_EemxIqbaFEE8-w"
nextVersions="_cFuKFw1VEeqjM-rxn3HuXQ"
name="SecurityTrailer"
definition="Trailer of the message containing a MAC or a digital signature."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="0"
xmlTag="SctyTrlr"
complexType="__DJZ4dtZEee9e6xduATmQg" />
<messageDefinitionIdentifier
businessArea="casp"
messageFunctionality="001"
flavour="001"
version="01" />
</messageDefinition>
ISO Building Blocks
The following items are used as building blocks to construct this message.