Work Breakdown & Estimates¶

High-level work packages and effort estimates for CostEngine (MfgIQ).

Summary¶

Phase	Duration	Effort (Person-Weeks)	Team Size
Phase 1: MVP	12 weeks	36 weeks	2-3 devs
Phase 2: Polish	8 weeks	24 weeks	2-3 devs
Phase 3: Intelligence	8 weeks	20 weeks	2 devs
Phase 4: Integration	12 weeks	30 weeks	2-3 devs
Total	40 weeks (~9 months)	110 weeks	2-3 devs

Related: UC-101, UC-801

Task	Effort	Priority	Dependencies
Excel template design	3 days	P0	None
Field mapping engine	5 days	P0	Template
Pandas/openpyxl integration	3 days	P0	None
Validation rules	4 days	P0	Field mapping
Error reporting UI	2 days	P0	Validation
Unit tests	2 days	P0	All above
Subtotal	19 days

Related: UC-201, UC-202, UC-203

Task	Effort	Priority	Dependencies
Material cost module	2 days	P0	None
Operations cost module	5 days	P0	None
Semantic Metric Engine	5 days	P0	ADR-006
Batch economics logic	3 days	P0	Operations
Scrap & yield calculator	4 days	P0	Material + Operations
Overhead application	2 days	P0	None
Cost aggregation	2 days	P0	All modules
Formula validation	3 days	P0	All above
Unit tests	4 days	P0	All above
Subtotal	30 days

Task	Effort	Priority	Dependencies
Cost breakdown data model	3 days	P0	Cost engine
Source traceability tracking	5 days	P0	Data model
Assumption logging	3 days	P0	Data model
Override mechanism	5 days	P0	Cost engine
Impact calculation	3 days	P0	Override
Drill-down UI	4 days	P0	All above
Historical Benchmarking (UC-303)	5 days	P1	Data model
Subtotal	28 days

Task	Effort	Priority	Dependencies
Margin scenario engine	3 days	P0	Cost engine
Quote template design	2 days	P0	None
PDF generation (ReportLab)	4 days	P0	Template
Excel export	2 days	P0	Cost engine
Email integration	2 days	P1	PDF
Subtotal	13 days

Related: UC-302, UC-802

Task	Effort	Priority	Dependencies
Version data model	3 days	P0	Database
Immutable snapshot logic	4 days	P0	Data model
Version comparison engine	5 days	P0	Snapshot
Change tracking	3 days	P0	Data model
Version UI (list, compare)	4 days	P0	All above
Subtotal	19 days

Task	Effort	Priority	Dependencies
User data model	2 days	P0	Database
JWT authentication	3 days	P0	User model
Role-based access control	4 days	P0	Auth
Login/logout UI	2 days	P0	Auth
Password reset	2 days	P1	Auth
Audit logging	2 days	P1	User model
Subtotal	15 days

Task	Effort	Priority	Dependencies
Responsive design	5 days	P0	All UI components
Loading states	2 days	P0	UI
Error handling UI	3 days	P0	UI
Keyboard shortcuts	2 days	P1	UI
Tutorial/onboarding	4 days	P1	All features
User testing & iteration	5 days	P0	All above
Subtotal	21 days

Task	Effort	Priority	Dependencies
Customer data model	2 days	P1	Database
Margin rules configuration	3 days	P1	Customer model
Payment terms logic	2 days	P1	Pricing
Freight calculators	3 days	P1	Customer model
Customer UI (CRUD)	3 days	P1	All above
Subtotal	13 days

Task	Effort	Priority	Dependencies
Template library data model	2 days	P1	Database
Save as template feature	2 days	P1	Cost engine
Template search	3 days	P1	Template model
Copy/modify workflow	3 days	P1	Template model
Similar part finder (basic)	4 days	P2	Cost engine
Subtotal	14 days

Task	Effort	Priority	Dependencies
REST API design (OpenAPI spec)	3 days	P1	All features
API endpoints implementation	5 days	P1	Core features
API authentication	2 days	P1	User auth
API documentation	2 days	P1	Endpoints
Rate limiting	2 days	P2	API
Subtotal	14 days

Task	Effort	Priority	Dependencies
Tally API research	3 days	P1	None
Connector architecture	4 days	P1	Research
Order sync implementation	6 days	P1	Connector
Material master sync	4 days	P1	Connector
Error handling & retry logic	3 days	P1	Sync
Integration testing	4 days	P1	All above
Subtotal	24 days

Related: UC-901, UC-903, UC-904

Task	Effort	Priority	Dependencies
Database indexing	3 days	P0	Data model
Redis caching layer	4 days	P1	Cost engine
Dockerization & CI/CD Pipelines	4 days	P1	None
Centralized Logging (Sentry)	2 days	P1	None
Load testing	3 days	P1	All features
Deployment automation (infra)	4 days	P1	Infrastructure
Subtotal	20 days