SaFi Bank Space : Cards

Created by Ján Borovský, last modified by Ardhi Catur Kurniawan on Nov 18, 2022

Scope

Card management use cases
Processing of card transactions
Integration with Euronet

Overview

Service decomposition and external dependencies

Card Management

Component	Description
Card Manager	Service responsible for the orchestration of card management use cases.
Card Access	Client library responsible for technical aspects of communication with the Card data store.
Cards	Data store dedicated to the persistence of card management related data.
Card Aggregator	CMS Abstraction layer, multiple vendor capability
Euronet GW	Gateway service enabling to integrate Euronet system.
Euronet	External card management and transaction system responsible for connecting to the card networks.
Delivery Aggregator	Card Delivery Abstraction layer, multiple vendor capability
Ninjavan GW	Gateway service enabling to integrate Ninjavan system.
Fraud Prevention Manager (Slacker)	Slacker evaluates risk of fraud according to the provided data. Based on the resulting risk score the Card Manager will trigger step-up authentication, approve or reject the operation.
Output Manager	Card Manager delegates to Output Manager the generation and delivery of output documents to the customers.
Audit Log Events	Account Manager publishes audit relevant events to be stored by Audit Log.
Card Management Events	Events representing significant activities realized by the Card Management domain are published to the corresponding topics.
Customer Manager	Provides customer profile data to Card Manager.
Product Manager	Provides subscription parameters to Card Manager.
Cloud Storage Access	Client library enabling integration with Google Cloud Storage.
Card File Storage	File storage in GCS containing custom card images.

Card Transactions

Component	Description
Card Transaction Manager	Service Responsible for the orchestration of card transaction processing workflows.
Card Transaction Events	Card Transaction Processing Manager emits events during the transaction processing. Transaction History Manager is one of the consumers of these messages responsible for creating of transaction history data store.
Card Transactions Access	Client library responsible for technical aspects of communication with the Card Transactions data store.
Card Transactions	Card transaction data store.
Card Manager	Card management service providing access to card parameters.
TM Vault Access	Client library responsible for technical aspects of communication with TM Vault.
TM Vault	Core banking system.
Euronet GW Access	Client library responsible for technical aspects of communication with the Euronet GW service.
Euronet GW	Gateway service enabling to integrate Euronet system.
Fraud Prevention Manager (Slacker)	Slacker evaluates risk of fraud according to the provided data. Based on the resulting risk score the Card Transaction Manager will trigger step-up authentication, approve or reject the operation.

Domain Model

Open Points

Open Point	Result
while card creation we needs: Validate `customerId` (customer-manager) Validate `accountNumber` and get balance to validate initial amount for new account/card (account-manager)	TBD

Open Point

Result

while card creation we needs:

Validate customerId (customer-manager)
Validate accountNumber and get balance to validate initial amount for new account/card (account-manager)

TBD

Attachments:

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