# 📋 Requirements Specification

**Version:** 1.5.1
**Status:** Active
**Last Updated:** 2025-12-02

---

## 📖 Overview

This directory contains the functional and non-functional requirements for the LCBP3-DMS (Laem Chabang Port Phase 3 - Document Management System). The requirements are organized by functional area and feature.

---

## 📑 Table of Contents

### Core Requirements

1. [Objectives & Goals](./01-objectives.md) - Project objectives and success criteria
2. [System Architecture & Technology](./02-architecture.md) - High-level architecture requirements
3. [Functional Requirements](./03-functional-requirements.md) - Detailed feature specifications

### Functional Areas

#### Document Management

- [3.1 Project & Organization Management](./03.1-project-management.md) - Projects, contracts, organizations
- [3.2 Correspondence Management](./03.2-correspondence.md) - Letters and communications
- [3.3 RFA Management](./03.3-rfa.md) - Request for Approval
- [3.4 Contract Drawing Management](./03.4-contract-drawing.md) - Contract drawings (แบบคู่สัญญา)
- [3.5 Shop Drawing Management](./03.5-shop-drawing.md) - Shop drawings (แบบก่อสร้าง)

#### Supporting Features

- [3.6 Unified Workflow](./03.6-unified-workflow.md) - Workflow engine and routing
- [3.7 Transmittals Management](./03.7-transmittals.md) - Document transmittals
- [3.8 Circulation Sheet Management](./03.8-circulation-sheet.md) - Document circulation
- [3.9 Revisions Management](./03.9-revisions.md) - Version control
- [3.10 File Handling](./03.10-file-handling.md) - File storage and processing

#### **⭐ Document Numbering System**

- [3.11 Document Numbering](./03.11-document-numbering.md) - **Requirements**
  - Automatic number generation
  - Template-based formatting
  - Concurrent request handling
  - Counter management

**Implementation & Operations:**

- 📘 [Implementation Guide](../03-implementation/document-numbering.md) - NestJS, TypeORM, Redis code examples
- 📗 [Operations Guide](../04-operations/document-numbering-operations.md) - Monitoring, troubleshooting, runbooks

#### Technical Details

- [3.12 JSON Details](./03.12-json-details.md) - JSON field specifications

### Cross-Cutting Concerns

4. [Access Control & RBAC](./04-access-control.md) - 4-level hierarchical RBAC
5. [UI/UX Requirements](./05-ui-ux.md) - User interface specifications
6. [Non-Functional Requirements](./06-non-functional.md) - Performance, security, scalability
7. [Testing Requirements](./07-testing.md) - Test strategy and coverage

---

## 🔄 Recent Changes

### v1.5.1 (2025-12-02)

- ✅ **Reorganized Document Numbering documentation**
  - Split into: Requirements → Implementation → Operations
  - Created [document-numbering.md](../03-implementation/document-numbering.md) implementation guide
  - Created [document-numbering-operations.md](../04-operations/document-numbering-operations.md) ops guide
- ✅ Updated schema to match v1.6.0 requirements
- ✅ Enhanced cross-references between documents

### v1.5.0 (2025-12-01)

- ✅ Added comprehensive security requirements
- ✅ Enhanced resilience patterns
- ✅ Added performance targets
- ⚠️ **Breaking:** Changed document numbering from stored procedure to app-level locking

### v1.4.5 (2025-11-30)

- ✅ Initial requirements documentation
- ✅ Functional requirements specified

See [CHANGELOG.md](../../CHANGELOG.md) for detailed version history.

---

## 📊 Requirements Traceability

### By Feature Status

| Feature Area               | Requirements Doc                       | Status      | Implementation | Operations |
|----------------------------|----------------------------------------|-------------|----------------|------------|
| Correspondence Management  | [03.2](./03.2-correspondence.md)       | ✅ Complete | Planned        | N/A        |
| RFA Management             | [03.3](./03.3-rfa.md)                  | ✅ Complete | Planned        | N/A        |
| Workflow Engine            | [03.6](./03.6-unified-workflow.md)     | ✅ Complete | Planned        | N/A        |
| **Document Numbering**     | [03.11](./03.11-document-numbering.md) | ✅ Complete | [Guide](../03-implementation/document-numbering.md) | [Guide](../04-operations/document-numbering-operations.md) |
| Access Control             | [04](./04-access-control.md)           | ✅ Complete | Planned        | N/A        |

### By Priority

- **P0 (Critical):** Access Control, Document Numbering
- **P1 (High):** Correspondence, RFA, Workflow Engine
- **P2 (Medium):** Transmittals, Circulation, Search
- **P3 (Low):** Reporting, Analytics

---

## 🎯 Requirements Quality Checklist

All requirements documents must meet these criteria:

- [ ] **Clear:** Written in simple, unambiguous language
- [ ] **Testable:** Can be verified through testing
- [ ] **Traceable:** Linked to business objectives
- [ ] **Feasible:** Technically achievable within constraints
- [ ] **Complete:** All edge cases and scenarios covered
- [ ] **Consistent:** No contradictions with other requirements

---

## 📖 Reading Guide

### For Product Owners / Business Analysts

1. Start with [Objectives & Goals](./01-objectives.md)
2. Review [Functional Requirements](./03-functional-requirements.md)
3. Check specific feature requirements (3.1-3.12)

### For Developers

1. Read requirements document for your feature
2. Check [Implementation Guides](../03-implementation/) for technical details
3. Review [ADRs](../05-decisions/) for architectural decisions
4. Check [Tasks](../06-tasks/) for development breakdown

### For QA / Testers

1. Review [Testing Requirements](./07-testing.md)
2. Use requirements as test case source
3. Verify [Non-Functional Requirements](./06-non-functional.md)

### For Operations Team

1. Read [Non-Functional Requirements](./06-non-functional.md) for SLAs
2. Check [Operations Guides](../04-operations/) for specific features
3. Review monitoring and alerting requirements

---

## 📬 Feedback & Issues

**Found issues or have suggestions?**

- Requirements clarity issues → [Open Issue](https://github.com/your-org/lcbp3-dms/issues/new?template=spec-issue.md)
- Feature requests → Contact Product Owner
- Technical questions → Contact System Architect

---

## 📝 Document Control

- **Version:** 1.5.1
- **Owner:** System Architect (Nattanin Peancharoen)
- **Last Review:** 2025-12-02
- **Next Review:** 2026-01-01
- **Classification:** Internal Use Only