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Production Systems & Quality

Related: production-operations

Cheat sheet

Printable study sheet: formulas → definitions → topic notes → traps.

Formulas

OEE = A×P×Q ; track losses separately

Control limits ≠ specification limits

Traceability: lot/batch ↔ process parameters ↔ test results

≈40% stitching labour cut ; ≈25% cycle (Fleurette jigs/auto)

35–45% shorter solar EPC via mount standards

IS 17514:2021 / IS 5405:2025 fabric / pad related quals

Definitions

SOP: Standard operating procedure — reduces variation
ERP/MES: Enterprise / manufacturing execution systems
First article inspection: Prove process before volume
CAPA: Corrective and preventive action
Standard work: Best known method documented & trained
Line balance: Distribute work to takt; reduce bottlenecks

Topic-wise short notes

Study these first — one block per syllabus topic. Then read the deep notes below.

Jigs, standards, ERP

Jigs locate; fixtures hold — design for poke-yoke.
ERP data quality: garbage in → bad planning.

Quality & regulatory

Document what you do; do what you document — audits.
IS/ISO/BIS paths as applicable to product.

Exam traps & quick notes

ERPNext for attendance, payroll, inventory → live line data.
BIS certification path + factory licensing awareness.
Link academic production-operations.
Standards without training don’t change outcomes.
Make the good way the easy way (fixtures, checklists).

Comprehensive notes

Jigs, standards, ERP

From tribal knowledge → process; connect MES/ERP to actual counts.

External: ERPNext docs ↗ BIS standards portal ↗

Quality & regulatory

Incoming inspection, traceability, CAPA mindset; soft-goods test methods.

External: ASQ ↗