routing

Operational meaning

In manufacturing and industrial operations, **routing** commonly refers to the defined sequence of steps that a product, batch, or work order follows as it moves through production. A routing specifies:

– The ordered list of operations (e.g., cut, drill, heat treat, inspect)
– The work centers, machines, or lines where those operations occur
– Required resources such as tools, fixtures, or programs
– Relevant parameters or references (e.g., process instructions, NC programs, recipes)

Routings are usually managed in ERP, MES, or planning systems and are used to plan capacity, schedule work, and ensure that production follows an approved process path.

Use in manufacturing systems

In integrated ERP–MES environments, routings are often:

– **Master data** that define the standard process path for a part number or product family
– **Linked to work orders** to generate shop floor job steps and traveler information
– **Referenced by MES** to drive operator instructions, sequence enforcement, and data collection
– **Used for traceability**, by associating actual production records with the routing steps executed

In regulated or high‑risk industries, routings are typically versioned, controlled documents aligned with approved process plans and quality records.

Boundaries and exclusions

Within this site context, routing:

– **Includes**: the logical and sometimes physical path of a product through defined manufacturing operations, including operation sequence and associated resources.
– **Excludes**: general network routing (IP routing, packet routing) or logistics routing (shipping routes, transport optimization), except where briefly mentioned for contrast.

When IT or OT network design is discussed, “routing” in that context usually means IP traffic routing, which is distinct from manufacturing process routing.

Common confusion and related terms

Routing is often discussed alongside:

– **Bill of material (BOM)** – defines *what* materials go into a product; routing defines *how* and *where* it is processed.
– **Process plan / process route** – in many plants, used interchangeably with routing; sometimes process plan includes more detailed parameters and controls.
– **Workflow** – a broader term that may include approvals, documentation steps, and electronic signatures; routing is usually focused on physical production steps.

Care is needed to distinguish manufacturing routing (process sequence) from **network routing**, which concerns directing data packets between devices and networks.

Application in MES alerts and scrap prevention (site context)

In MES, routing information is frequently used to:

– Enforce **operation sequencing**, preventing operators from skipping or reordering critical steps
– Drive **contextual alerts** when work deviates from the approved routing (e.g., attempting inspection before required heat treat)
– Tie **specification limits and controls** to specific routing steps (e.g., torque checks at a defined operation)
– Support **configuration and revision control**, ensuring the correct routing version is applied to the correct part and work order

In aerospace and other regulated industries, misrouting or executing the wrong routing revision is a common precursor to scrap, rework, or nonconformance. MES alerts that reference the active routing and its required sequence are therefore used to highlight deviations before irreversible operations are performed.