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docs/execution-services/order-management-system/README.md

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+# Order Management System
+
+## Overview
+The Order Management System (OMS) will provide centralized order lifecycle management for the stock-bot platform. It will handle the entire order process from creation through routing, execution, and settlement, ensuring reliable and efficient trade processing while maintaining proper audit trails.
+
+## Planned Features
+
+### Order Lifecycle Management
+- **Order Creation**: Clean API for creating various order types
+- **Order Validation**: Pre-execution validation and risk checks
+- **Order Routing**: Intelligent routing to appropriate brokers/venues
+- **Execution Tracking**: Real-time tracking of order status
+- **Fill Management**: Processing of full and partial fills
+- **Cancellation & Modification**: Handling order changes and cancellations
+
+### Order Types & Algorithms
+- **Market & Limit Orders**: Basic order type handling
+- **Stop & Stop-Limit Orders**: Risk-controlling conditional orders
+- **Time-in-Force Options**: Day, GTC, IOC, FOK implementations
+- **Algorithmic Orders**: TWAP, VWAP, Iceberg, and custom algorithms
+- **Bracket Orders**: OCO (One-Cancels-Other) and other complex orders
+
+### Execution Quality
+- **Best Execution**: Strategies for achieving optimal execution prices
+- **Transaction Cost Analysis**: Measurement and optimization of execution costs
+- **Slippage Monitoring**: Tracking of execution vs. expected prices
+- **Fill Reporting**: Comprehensive reporting on execution quality
+
+### Operational Features
+- **Audit Trail**: Complete history of all order events
+- **Reconciliation**: Matching of orders with executions
+- **Exception Handling**: Management of rejected or failed orders
+- **Compliance Rules**: Implementation of regulatory requirements
+
+## Planned Integration Points
+
+### Upstream Connections
+- Strategy Orchestrator (order requests)
+- Risk Guardian (risk validation)
+- Authentication Services (permission validation)
+
+### Downstream Consumers
+- Broker Gateway (order routing)
+- Portfolio Manager (position impact)
+- Trading Dashboard (order visualization)
+- Data Warehouse (execution analytics)
+
+## Planned Technical Implementation
+
+### Technology Stack
+- **Runtime**: Node.js with TypeScript
+- **Database**: High-performance transactional database
+- **Messaging**: Low-latency message bus for order events
+- **API**: RESTful and WebSocket interfaces
+- **Persistence**: Event sourcing for order history
+
+### Architecture Pattern
+- Event-driven architecture for real-time processing
+- CQRS for optimized read/write operations
+- Microservice decomposition by functionality
+- High availability and fault tolerance design
+
+## Development Guidelines
+
+### Order Management
+- Order state machine definitions
+- Order type specifications
+- Validation rule implementation
+- Exception handling procedures
+
+### Performance Requirements
+- Order throughput expectations
+- Latency budgets by component
+- Scaling approaches
+- Resource utilization guidelines
+
+### Testing Strategy
+- Unit testing requirements
+- Integration testing approach
+- Performance testing methodology
+- Compliance verification procedures
+
+## Implementation Roadmap
+1. Core order types and lifecycle management
+2. Basic routing and execution tracking
+3. Advanced order types and algorithms
+4. Execution quality analytics and optimization
+5. Compliance and regulatory reporting features