Architecture Explorer

erDiagram ENTITY_TYPE_LOOKUP ||--o{ ACCOUNT : classifies ENTITY_STATUS_LOOKUP ||--o{ ACCOUNT : status RELATIONSHIP_TYPE_LOOKUP ||--o{ ACCOUNT_RELATIONSHIP : categorizes ACTIVITY_TYPE_LOOKUP ||--o{ ACTIVITY_EVENT : types ACTIVITY_TYPE_LOOKUP ||--o{ OPERATIONAL_TRANSACTION : types POLICY_STATUS_LOOKUP ||--o{ POLICY_DOCUMENT : status LEDGER_STATUS_LOOKUP ||--o{ LEDGER_ENTRY : status LEDGER_ENTRY_TYPE_LOOKUP ||--o{ LEDGER_ENTRY : entry_type ACCOUNT ||--o{ ACCOUNT : created_by ACCOUNT ||--o{ ACCOUNT_RELATIONSHIP : source ACCOUNT ||--o{ ACCOUNT_RELATIONSHIP : target ACCOUNT ||--o{ ACTIVITY_EVENT : validates_actor ACCOUNT ||--o{ OPERATIONAL_TRANSACTION : validates_actor ACCOUNT ||--o{ LEDGER_ENTRY : validates_beneficiary ACTIVITY_EVENT ||--o{ LEDGER_ENTRY : validates_activity POLICY_DOCUMENT ||--o{ LEDGER_ENTRY : validates_policy OUTBOX_EVENT ||--o{ PROJECTION_RECEIPT : projects ACCOUNT { binary16 account_id PK string account_type FK string external_account_id binary16 created_by_account_id FK integer schema_version json document string status FK boolean is_active bigint version datetime deleted_at datetime created_at datetime updated_at } ACCOUNT_RELATIONSHIP { binary16 relationship_id PK binary16 source_account_id FK binary16 target_account_id FK string relationship_type FK datetime valid_from datetime valid_to string status FK boolean is_active json metadata datetime deleted_at datetime created_at datetime updated_at } OPERATIONAL_TRANSACTION { binary16 transaction_id PK bigint partition_key PK boolean is_active PK datetime partition_created_time binary16 actor_account_id string external_transaction_id string transaction_type FK numeric amount string currency string status FK json facts datetime occurred_at datetime settled_at datetime deleted_at datetime created_at datetime updated_at } ACTIVITY_EVENT { binary16 activity_id PK bigint partition_key PK boolean is_active PK datetime partition_created_time binary16 actor_account_id string activity_type string external_transaction_id string idempotency_key UK json facts datetime occurred_at datetime recorded_at datetime deleted_at datetime created_at datetime updated_at } POLICY_DOCUMENT { binary16 policy_id PK string policy_code integer policy_version json definition datetime valid_from datetime valid_to string status FK datetime created_at datetime updated_at } LEDGER_ENTRY { binary16 ledger_entry_id PK bigint partition_key PK boolean is_active PK datetime partition_created_time binary16 activity_id binary16 policy_id FK binary16 beneficiary_account_id FK numeric amount string currency string entry_type FK string status FK string billing_external_id UK json metadata datetime settled_at datetime deleted_at datetime created_at datetime updated_at } OUTBOX_EVENT { binary16 event_id PK bigint partition_key PK boolean is_active PK datetime partition_created_time string aggregate_type binary16 aggregate_id binary32 outbox_dedup_key UK bigint aggregate_version string event_type json payload datetime created_at datetime updated_at datetime available_at datetime published_at integer attempt_count string last_error_code string last_error_ref } PROJECTION_RECEIPT { string projection_name PK binary16 event_id binary16 aggregate_id binary32 outbox_dedup_key UK bigint aggregate_version datetime processed_at } ENTITY_TYPE_LOOKUP { string code PK string description } ENTITY_STATUS_LOOKUP { string code PK string description } RELATIONSHIP_TYPE_LOOKUP { string code PK string description } ACTIVITY_TYPE_LOOKUP { string code PK string description } POLICY_STATUS_LOOKUP { string code PK string description } LEDGER_STATUS_LOOKUP { string code PK string description } LEDGER_ENTRY_TYPE_LOOKUP { string code PK string description }

sequenceDiagram actor Applicant participant API as "S&DP API" participant MD as Masterdata participant DB as AWS Aurora MySQL 8.0 participant Relay as Outbox Relay participant MS as Manticore Applicant->>API: Self-register with MP-001 API->>MD: Validate external IDs MD-->>API: Valid API->>DB: Account, referral, outbox in one transaction DB-->>API: PENDING version 1 API-->>Applicant: Accepted Relay->>DB: Claim unpublished event Relay->>MS: Upsert newer sourceVersion Relay->>DB: Receipt and publish acknowledgement