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ISO-20022 Combo Flow - Complete Deliverables Summary

Overview

This document summarizes all deliverables generated for the ISO-20022 Combo Flow engineering implementation plan, incorporating hybrid adapters (DeFi + Fiat/DTL), optional simulation, and required compliance integration.

Deliverables Completed

1. ✅ UI/UX Specification for Builder v2

File: docs/UI_UX_Specification_Builder_V2.md

Contents:

  • Comprehensive UI/UX specification for drag-and-drop builder
  • Hybrid adapter selection UI (DeFi + Fiat/DTL)
  • Compliance status indicators (LEI/DID/KYC/AML badges)
  • Optional simulation toggle for advanced users
  • Step dependency visualization
  • Responsive design requirements
  • Accessibility requirements
  • Performance requirements

Key Features:

  • Main Builder Canvas with drag-drop palette
  • Step Configuration Drawer with compliance fields
  • Simulation Results Panel (optional)
  • Compliance Status Dashboard Overlay
  • Adapter Selection Modal with whitelist filtering

2. ✅ Wireframes & Mockups

File: docs/Wireframes_Mockups.md

Contents:

  • Detailed wireframe sketches for 5 key screens
  • Desktop, tablet, and mobile layouts
  • Visual design tokens (colors, typography, spacing)
  • Interaction states
  • Error states and edge cases

Screens Covered:

  1. Main Builder Canvas
  2. Step Configuration Drawer
  3. Simulation Results Panel
  4. Compliance Status Dashboard
  5. Adapter Selection Modal

3. ✅ Orchestrator OpenAPI 3.0 Specification

File: docs/Orchestrator_OpenAPI_Spec.yaml

Contents:

  • Complete OpenAPI 3.0 specification
  • All endpoints documented with request/response schemas
  • Endpoints for:
    • Plan management (create, get, sign)
    • Simulation (optional)
    • Execution coordination
    • Compliance checks
    • Adapter registry
    • Notarization
    • Receipt generation

Key Endpoints:

  • POST /api/plans - Create plan
  • POST /api/plans/{planId}/simulate - Simulate (optional)
  • POST /api/plans/{planId}/execute - Execute plan
  • GET /api/compliance/status - Get compliance status
  • GET /api/adapters - List adapters

4. ✅ Smart Contract Interface Specifications

File: docs/Smart_Contract_Interfaces.md

Contents:

  • Handler/Aggregator contract interface (atomic execution)
  • Notary Registry contract (codehash tracking, attestation)
  • Adapter Registry contract (whitelisting)
  • Integration patterns (2PC, HTLC, conditional finality)
  • Security considerations
  • Testing requirements

Contracts Defined:

  1. IComboHandler - Atomic execution
  2. INotaryRegistry - Audit trail
  3. IAdapterRegistry - Adapter management
  4. Implementation examples

5. ✅ Adapter Architecture Specification

File: docs/Adapter_Architecture_Spec.md

Contents:

  • Hybrid adapter system (DeFi + Fiat/DTL)
  • Adapter interface contract (IAdapter)
  • Whitelist/blacklist mechanisms
  • Protocol versioning
  • Upgrade paths
  • Integration guide for adding new adapters

Examples Provided:

  • DeFi adapter: Uniswap V3
  • Fiat adapter: ISO-20022 Pay
  • Bridge adapter
  • SWIFT/SEPA adapters

6. ✅ Compliance Integration Specification

File: docs/Compliance_Integration_Spec.md

Contents:

  • LEI/DID/KYC/AML injection into ISO messages
  • Compliance engine API contract
  • Real-time status checks
  • Identity assertion format (W3C Verifiable Credentials)
  • Audit trail requirements
  • Compliance workflow integration

Key Features:

  • Required compliance attributes by workflow type
  • Compliance engine API
  • ISO message compliance injection
  • Entra Verified ID integration

7. ✅ Simulation Engine Specification

File: docs/Simulation_Engine_Spec.md

Contents:

  • Optional simulation engine design
  • Dry-run execution logic
  • Gas estimation
  • Slippage calculation
  • Liquidity checks
  • Failure prediction
  • Result presentation format

Key Features:

  • Toggleable for advanced users (requirement 2b)
  • Step-by-step simulation
  • Cost estimates
  • Risk analysis
  • Performance requirements (<5s)

8. ✅ Error Handling & Rollback Specification

File: docs/Error_Handling_Rollback_Spec.md

Contents:

  • Comprehensive failure modes
  • Recovery mechanisms
  • Partial execution prevention
  • Audit trail for aborted plans
  • User notifications

Failure Modes Covered:

  • DLT fail after bank prepare
  • Bank fail after DLT commit
  • Liquidity denial
  • Recovery mechanisms for each

9. ✅ ISO-20022 Message Samples

File: docs/ISO_Message_Samples.md

Contents:

  • Complete pacs.008 XML with plan_id and signature
  • camt.052/053 for reconciliation
  • camt.056 for cancellation/rollback
  • Compliance data injection examples
  • Message generation code

Samples Provided:

  1. pacs.008 - Payment Instruction (with compliance data)
  2. camt.052 - Bank Statement
  3. camt.053 - Account Statement
  4. camt.056 - Cancellation Request

10. ✅ Engineering Ticket Breakdown

File: docs/Engineering_Ticket_Breakdown.md

Contents:

  • PR-ready engineering tickets
  • 28 tickets total (Frontend: 7, Backend: 11, Smart Contracts: 4, Integration: 2, Testing: 3)
  • Acceptance criteria for each ticket
  • Priority and estimates
  • Dependencies and relationships

Ticket Categories:

  • Frontend (7 tickets, ~40 story points)
  • Backend (11 tickets, ~80 story points)
  • Smart Contracts (4 tickets, ~37 story points)
  • Integration (2 tickets, ~14 story points)
  • Testing (3 tickets, ~24 story points)

Total: ~180 story points

Requirements Incorporated

✅ Hybrid Adapters (Requirement 1b)

  • Adapter system supports both DeFi and Fiat/DTL
  • Selection control in UI (filter by type, whitelist)
  • Separate adapter sections in palette
  • Adapter registry supports both types

✅ Optional Simulation (Requirement 2b)

  • Simulation toggle for advanced users
  • Optional simulation API endpoint
  • Results panel shows gas, slippage, liquidity
  • Not required for basic users

✅ Required Compliance (Requirement 3d)

  • LEI/DID/KYC/AML required for workflows
  • Compliance status always visible
  • Compliance validation before execution
  • Compliance data injected into ISO messages
  • Real-time compliance checks

File Structure

docs/
├── UI_UX_Specification_Builder_V2.md
├── Wireframes_Mockups.md
├── Orchestrator_OpenAPI_Spec.yaml
├── Smart_Contract_Interfaces.md
├── Adapter_Architecture_Spec.md
├── Compliance_Integration_Spec.md
├── Simulation_Engine_Spec.md
├── Error_Handling_Rollback_Spec.md
├── ISO_Message_Samples.md
├── Engineering_Ticket_Breakdown.md
└── DELIVERABLES_SUMMARY.md (this file)

Next Steps

  1. Review Deliverables: Review all specifications for accuracy and completeness
  2. Prioritize Tickets: Assign priorities and dependencies to engineering tickets
  3. Start Implementation: Begin with P0 tickets (Frontend: FE-001, Backend: BE-001, Smart Contracts: SC-001)
  4. Iterate: Use specifications as living documents, update as implementation progresses

Key Decisions Made

  1. Hybrid Adapter System: Supports both DeFi and Fiat/DTL with unified interface
  2. Optional Simulation: Toggleable feature for advanced users, not mandatory
  3. Compliance Integration: Required compliance (LEI/DID/KYC/AML) with real-time validation
  4. 2PC Pattern: Two-phase commit for atomicity across DLT and banking rails
  5. Notary Registry: Immutable audit trail via on-chain notary registry

Document Version: 1.0
Generated: 2025-01-15
Status: All deliverables completed ✅

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