Order-to-Cash Billing Bridge

Technical Implementation Proposal  ·  Meridian Coatings

1. Executive Summary

This proposal presents a comprehensive implementation plan for the Meridian Coatings Order-to-Cash Billing Bridge system. The solution delivers a complete, cloud-native billing and order management platform designed to support your transition from parent ERP services to independent operations.

What Will Be Delivered:

• Complete order-to-cash workflow automation from quote through invoice and credit memo processing
• Seamless integration with parent ERP transition services and target GL system
• Role-based access control with SSO authentication and comprehensive audit capabilities
• Real-time operational dashboard with cutover progress tracking
• Production-ready deployment with staging environment and automated backup infrastructure

Project Investment: $627,600
Timeline: 28 weeks (14 two-week sprints)
Total Effort: 4,184 hours across 1,544 deliverable items

2. Understanding of Requirements

The RFP specifies a mission-critical billing bridge system to support Meridian Coatings' carve-out from a global chemicals parent. The system must operate under a 36-month Transition Services Agreement, processing the complete order-to-cash lifecycle for a $180M revenue specialty coatings manufacturer.

Core Requirements

• Quote-to-Order Workflow: Create and approve quotes with advanced price resolution, convert to orders, manage expiry and lifecycle
• Order Management: Direct order creation, pre- and post-shipment amendments, shipment event recording, and overship prevention
• Invoice Processing: Generate invoices from shipments with integer-cents computation, render PDFs, maintain gapless numbering, and post AR journals
• Credit Memo Operations: Create credit memos with reason code enforcement and approval workflows
• Master Data Management: Maintain customer records, product catalog (SKUs), pricing structures, and contract relationships
• Integration Seams: Ingest fixed-format exports from parent ERP, consume payment events, emit GL journal batches, and integrate tax rate provision
• Security & Compliance: Implement RBAC with SSO/OIDC authentication, MFA enforcement, append-only audit logs, and sponsor read-only access
• Performance: Support monthly invoice batch processing, real-time dashboard KPIs, and weekly snapshot ingestion within specified SLAs
• Operations: Provide operational dashboard with cutover tracking, data retention/archival, and interface versioning

The specification includes 88 discrete requirements across 25 functional epics, with version 0.2 incorporating findings from independent review (completeness score 88/100).

3. Requirements Traceability Matrix

Coverage Summary: 25 epics, 88 features, 100% RFP requirement coverage

4. Proposed Solution Overview

Technical Architecture

The solution employs a cloud-native, containerized architecture designed for scalability, security, and operational efficiency:

• Presentation Layer: Responsive web interface with accessibility compliance, skeleton states, inline validation, and toast notifications
• Business Logic Layer: Order-to-cash workflow orchestration, price resolution engine, approval workflows, and lifecycle management
• Data Layer: Versioned master data (customers, products, pricing, contracts), append-only audit logs, and temporal transaction records
• Integration Layer: Inbound connectors (parent ERP exports, payment events, tax rates), outbound connectors (GL journal batches), and idempotent message processing

Key Technical Capabilities

Price Resolution Engine: Multi-tier pricing hierarchy (list prices, volume tiers, customer contracts); temporal price versioning with effective date management; performance-optimized resolution algorithm meeting §10.2 specifications.

Financial Computation Integrity: Integer-cents arithmetic throughout the entire calculation chain (REQ-M3.2, C-1); gapless invoice numbering with database-level sequence enforcement; journal batch balancing validation before GL emission.

Integration Resilience: Fixed-format parser with schema stability enforcement; idempotent payment application preventing duplicate credits; weekly snapshot ingestion with performance SLA compliance.

Security & Compliance: Role-based access control mapped to organizational roles (§2); SSO/OIDC authentication with MFA enforcement; sponsor read-only access firewall (AT-12); append-only audit log with queryability interface.

Operational Visibility: Real-time KPI dashboard with data integrity controls (AT-14); cutover progress tracker with TSA milestone mapping (AT-19); alert notifications for workflow exceptions and approval queues.

5. Implementation Approach

Methodology

The project follows an iterative, sprint-based delivery model with continuous integration across 14 two-week sprints. Each sprint delivers demonstrable increments with stakeholder review.

• Sprint Planning (Day 1): Review backlog, commit capacity, define acceptance criteria
• Daily Sync: 15-minute stand-ups, impediment resolution
• Sprint Review (Day 9): Demonstrate completed features to stakeholders
• Sprint Retrospective (Day 10): Process improvement, lessons learned

Quality Gates

Each phase includes mandatory quality gates before progression: code quality review (automated linting + static analysis), unit test coverage ≥80%, integration test suite passing, security scan (vulnerability scanning, dependency audit, secrets detection), performance validation against §10.2 SLA benchmarks, and complete API documentation.

6. Timeline and Phases

The implementation is structured across 9 phases delivered over 28 weeks (14 two-week sprints):

Critical Milestones

7. Investment Summary

Blended Rate: $150/hour  ·  Payment Terms: Net 30 upon sprint completion  ·  Billing Frequency: Bi-weekly aligned with sprint cadence

Payment Schedule

8. Proposed Team Structure

• Project Manager (1)
• Technical Lead (1)
• Senior Software Engineers (3)
• Software Engineers (4)
• DevOps Engineer (1)
• UI/UX Designer (1)
• QA Engineers (2)
• Business Analyst (1)
• Technical Writer (1)

Team allocation varies by phase, with peak team size during Phases 3–4 (Order Management & Financial Processing).

9. Quality Assurance Process

Unit Testing: Target coverage ≥80%; automated execution in CI/CD pipeline; TDD for critical financial calculations (integer-cents arithmetic, price resolution, journal balancing).

Integration Testing: API contract validation; database transaction integrity; integration seam verification (ERP ingestion, GL export, payment processing).

End-to-End Testing: Complete workflow validation (quote → order → shipment → invoice → payment); cross-functional scenario coverage; regression test suite before each release.

Performance Testing: Load testing against §10.2 SLA requirements — monthly invoice batch processing, dashboard KPI refresh latency, weekly snapshot ingestion throughput.

Security Testing: Automated vulnerability scanning; penetration testing of authentication/authorization; secrets detection; RBAC enforcement validation.

Quality Metrics

10. Risk Mitigation

11. Next Steps

1. Week 1 — Project Kickoff: Execute statement of work and master services agreement; provision cloud infrastructure accounts and access credentials; establish communication channels
2. Weeks 1–2 — Sprint 0: Finalize environment architecture and security baseline; set up CI/CD pipeline and code repository; conduct requirement refinement sessions; establish quality gates and acceptance criteria
3. Week 3 — Sprint 1 Launch: Begin Phase 1 (Infrastructure) and Phase 2 (Foundation) work; hold first sprint planning session; initiate daily stand-ups

Proposal Valid Through: 60 days from submission  ·  Proposed Start Date: Within 2 weeks of contract execution