Mobile-first shop-floor entry with an on-screen numeric keypad

Automatic out-of-spec detection the moment a value is typed

Versioned specification master — a reading keeps the spec revision active when it was taken

Type-to-filter search on every list; CSV / Excel import with preview → validate → commit

I-MR, X̄-R, X̄-S, P, NP, C, U control charts with Nelson / Western Electric run-rules

Cp, Cpk, Cpu, Cpl, Pp, Ppk, Cpm, Cpmk, CR, DPMO, yield, sigma level

Histograms with fitted normal curve; trend analysis by day / week / month / shift / batch

Batch-to-batch, shift-to-shift and machine-to-machine comparison with box / mean / SD charts

Capacity and cycle-life stored as a permanent time-series — never overwritten

Retention curve vs cycle, end-voltage and temperature trends, EOL detection

Active-test board, test history, per-battery traceability and failure analysis

Designed for hundreds of batteries per day and millions of measurements

OOS / NCR with Open → Containment → Investigation → Root cause → Corrective action → Verification → Closed

CAPA with responsible person, due dates, effectiveness check

File attachments on OOS/NCR, CAPA, R&D, inspection and battery records

Experiments with design / material / process revisions and sample groups

Correlation & regression (including inspection parameter ↔ battery capacity), Weibull β / η / B-life

PDF & Excel reports: SPC, capability, quality, management, capacity

QA, R&D, Management and personal dashboards

One dedicated database per company — no shared tables, clean backups and exports

Role-based access control with row-level data scoping and a complete audit trail

Runs on ordinary cPanel hosting — Core PHP, no Node.js / Docker required in production

English & Bangla UI