Production and Inventory

MOM wraps MES and orchestrates production, quality, maintenance, and inventory decisions together.

MES captures actual time, stoppages, and scrap data from work order open to close in real time.

ERP handles finance, sales, procurement, and inventory. For real-time shop-floor operations, it is not sufficient on its own.

In made-to-order production, every order is unique. When operations begin, where does the information go? Split between paper, Excel, the foreman's memory, WhatsApp, and phone calls—the cost of fragmented knowledge.

In mass production, recipes are fixed. In made-to-order production, every order carries a different recipe, different operation sequence, and different cost profile. When standard costing collapses, how do we capture true cost? What are dynamic recipes and real cost engines?

In made-to-order manufacturing, MES captures actual duration, downtime, and scrap data from order open to order close in real time. We explain the gap between ERP and MES through a concrete scenario.

In customer-specific production, asking the ERP to track the shop floor costs more than it saves. ERP records completed transactions; it does not watch work happen. The record-versus-monitor distinction through a concrete scenario.

A narrative following Order #247 through the factory: how information fragments at every handoff in customer-specific production, and what it costs.

MOM, or Manufacturing Operations Management, is the orchestration layer above MES that brings quality, maintenance, and inventory under one roof.

MES captures real-time production data — cycle time, downtime, and scrap — from work order start to finish on the shop floor. The concrete difference from ERP.

ERP is designed for finance, sales, purchasing, and stock accounting — not for real-time data collection from the shop floor. Your ERP is not lying; it is just speaking late and in coarse grains.

In mass production, a fixed recipe and standard cost work perfectly. In customer-specific production, every order has a different route, a variable operation sequence, and actual cost rarely matches the standard. I explain the dynamic recipe and true cost engine concepts.