---
story_id: sprint_2_story_3
sprint: sprint_2
priority: P1
status: completed
story_points: 8
estimated_days: 3-4
actual_days: 1
created_date: 2025-11-05
start_date: 2025-11-05
completion_date: 2025-11-05
assignee: Backend Team
---

# Story 3: Sprint Management Module

**Sprint**: Sprint 2
**Priority**: P1 (Should Have)
**Estimated**: 3-4 days (Day 31-34)
**Owner**: Backend Team

## Description

Implement complete Sprint management functionality to support agile sprint planning, tracking, and burndown analytics. Enable teams to organize work into time-boxed iterations.

## Acceptance Criteria

- [x] Sprint entity created with proper domain logic
- [x] 11 CQRS API endpoints implemented (Create, Update, Delete, Get, GetByProject, GetActive, GetBurndown, Start, Complete, AddTask, RemoveTask)
- [x] Burndown chart data calculation implemented
- [x] SignalR real-time notifications for Sprint events
- [x] Multi-tenant isolation enforced
- [x] Integration tests with >= 90% coverage (20 passing tests)
- [x] All tests passing

## Technical Requirements

**Sprint Entity**:
- Fields: `SprintId`, `TenantId`, `ProjectId`, `Name`, `Goal`, `StartDate`, `EndDate`, `Status` (Planned/Active/Completed)
- Relationships: `Project` (many-to-one), `Tasks` (one-to-many)
- Business Logic: Validate dates, status transitions, capacity tracking

**API Endpoints**:
1. POST /api/sprints - Create Sprint
2. PUT /api/sprints/{id} - Update Sprint
3. DELETE /api/sprints/{id} - Delete Sprint
4. GET /api/sprints/{id} - Get Sprint by ID
5. GET /api/sprints - List Sprints (with filters)
6. POST /api/sprints/{id}/start - Start Sprint
7. POST /api/sprints/{id}/complete - Complete Sprint
8. POST /api/sprints/{id}/tasks/{taskId} - Add Task to Sprint
9. DELETE /api/sprints/{id}/tasks/{taskId} - Remove Task from Sprint

**Burndown Chart**:
- Calculate remaining story points per day
- Track completed vs remaining work
- Return data for chart visualization

**Technology Stack**:
- Domain Layer: Sprint aggregate root + domain events
- Application Layer: CQRS (5 commands + 4 queries)
- Infrastructure Layer: PostgreSQL + EF Core
- Real-time: SignalR SprintHub

## Tasks

- [x] [Task 1](sprint_2_story_3_task_1.md) - Create Sprint Aggregate Root and Domain Events
- [x] [Task 2](sprint_2_story_3_task_2.md) - Implement Sprint Repository and EF Core Configuration
- [x] [Task 3](sprint_2_story_3_task_3.md) - Create CQRS Commands and Queries
- [x] [Task 4](sprint_2_story_3_task_4.md) - Implement Burndown Chart Calculation
- [x] [Task 5](sprint_2_story_3_task_5.md) - Add SignalR Real-Time Notifications
- [x] [Task 6](sprint_2_story_3_task_6.md) - Write Integration Tests

**Progress**: 6/6 tasks completed (100%)

## Dependencies

**Prerequisites**:
- ✅ ProjectManagement Module 95% Production Ready (Day 16)
- ✅ SignalR Backend 100% Complete (Day 17)
- ✅ Multi-Tenant Security Complete (Day 15)

## Definition of Done

- All 6 tasks completed
- 9 API endpoints working
- Burndown chart data calculation implemented
- SignalR notifications working
- All tests passing (>= 90% coverage)
- Multi-tenant isolation verified
- Code reviewed and approved
- Git commit created

## Notes

**Sprint Lifecycle**:
1. Planned → Active (Start Sprint)
2. Active → Completed (Complete Sprint)
3. Cannot delete Active sprint (must complete first)

**Burndown Chart Formula**:
- Total Story Points = Sum of all tasks in sprint
- Remaining Story Points = Sum of incomplete tasks
- Daily Burndown = [(Start Date, Total), ..., (Today, Remaining), ..., (End Date, 0 ideal)]

---

**Created**: 2025-11-05 by Backend Agent