What we built, and what is running

A real, named operating case (not a scenario)

A factory MES in daily use: Hankyul Package (한결팩키지) and Jiwon MRO (지원엠알오)

Hankyul Package (a corrugated box manufacturer) and its subsidiary Jiwon MRO (an agricultural and marine produce box manufacturer) use one MES built by Woojung Software, split across the two legal entities. Screen counts and deployment counts are for the one system both companies share; the PDA ratio and the equipment link combine both companies' records. Each number carries the date it was measured.

Period of use

Work records have been accumulating since the end of September 2021, so it has been in use for over five years. In the 30 days from 2026-09-06 to 10-05 there were login records on 28 days (checked 2026-10-06).

Web accounts

24 accounts have login or screen-open records between 2026-09-06 and 10-05 (Hankyul Package 15, Jiwon MRO 7, trading-partner accounts 2).

Screens in use

Of the 78 menu screens as of 2026-10-06, 64 were opened between 2026-09-06 and 10-05. The most-opened screens in that period were shipment plan entry, item master, product purchase orders, partner management, sales order entry and fabric purchase orders.

Monthly volume

September 2026 records, both companies combined: 1,722 sales orders, 2,938 product shipment lines (returns, replacements and adjustments excluded), 1,583 production records and 3,146 shop-floor PDA shipment scan lines (Hankyul Package 1,050 orders and 1,890 shipment lines; Jiwon MRO 672 orders and 1,048 shipment lines). Orders and production records are values within the monthly range of the last 12 months.

Shop-floor PDA

Of the 2,938 shipment lines in September 2026 (both companies), 2,376 lines (81%) have a PDA shipment lot record under the same order number between 2026-08-25 and 10-05. PDA scan records and shipment records use different numbering, so we cannot count whether each shipment line was scanned or the scan ratio per line.

Equipment link

A link that sends the printing plan to the printing machine is still in use (latest planned delivery date 2026-10-06).

Deployments while running

We confirmed 11 production-server deployments between 2026-08-19 and 10-02 from the backup files taken just before each deployment (earlier backups were deleted, so the total count is unknown). Downtime during the 2026-09-30 deployment was measured at 56 seconds.

We do not state before-and-after effect numbers: there is no record of the data or working time before the system was introduced.

Numbers are counts from the production system's records, taken on 2026-10-06.

Korean source: /cases