Manufacturing software: the systems a mid-sized manufacturer needs

The five types of manufacturing software

Most manufacturing software falls into one of five categories. A mid-sized manufacturer will usually need capability in all five areas, even if it is delivered by fewer than five systems.

The overlap is real. An ERP with a good MRP module will plan material requirements; a separate MES will tell you whether the plan actually happened. Quality and traceability often share the same batch record. Maintenance sits slightly apart but feeds availability data back into the schedule.

ERP and MRP: the planning layer

Material requirements planning (MRP) explodes a sales order or forecast into the raw materials, components and capacity needed to fulfil it, against what you already hold in stock. It answers: what do we need, how much, and by when.

On its own, MRP is a calculation. ERP wraps it with finance, purchasing, sales order processing and stock control so the plan connects to the rest of the business. See our comparison of MRP vs ERP if you are trying to work out which you actually need.

MES and shop floor data capture

A manufacturing execution system captures what is happening on the shop floor as it happens - machine states, operator clock-ons, quantities completed, scrap and downtime reasons. This is the layer most ERPs get wrong, because it needs to work at the pace of the shop floor, not the office.

The honest question to ask before buying MES is whether you need real-time data capture at all. If your plan changes once a shift and a supervisor walking the floor can catch problems within an hour, a simpler system with manual updates may be entirely adequate.

Quality management: proving the batch was right

A quality management system records inspections, non-conformances, corrective actions and supplier quality, usually against a formal standard such as ISO 9001. For regulated sectors, this overlaps heavily with traceability - see our guide to food traceability software for how that plays out in food and drink manufacturing specifically.

Many manufacturers run quality on spreadsheets for years quite successfully. The trigger to move to a system is usually an audit finding, a customer requirement, or the volume of non-conformances outgrowing what one person can track by memory.

Maintenance: keeping the plan honest

A CMMS schedules preventive maintenance, logs breakdowns, and tracks spares. It matters to production planning because unplanned downtime is the single biggest reason a well-built schedule falls apart within a day of being published - a theme we cover in more depth in our piece on production scheduling software.

• Preventive scheduling - servicing based on hours run or calendar time, not guesswork.
• Breakdown logging - what failed, how long it took, and what it cost in lost production.
• Spares tracking - so a five-minute fix doesn't become a two-day wait for a part.

Traceability: batch genealogy

Traceability records which raw material lots went into which finished batches, and where those batches were shipped. In food, pharma and some engineering sectors this is a regulatory requirement, not an optional extra, and it needs to survive a mock recall exercise, not just a spreadsheet audit.

How do the systems fit together?

The practical answer is: fewer systems, better integrated, beats more systems with cleaner boundaries on paper. A common working shape is ERP for planning and finance, a lightweight shop floor capture layer feeding it live data, and quality/traceability built on the same batch record rather than a separate one.

Off-the-shelf products cover this well for standard discrete or process manufacturing. Where we get involved is when a manufacturer's routings, quality checks or traceability rules are specific enough that no product models them cleanly - at which point it is worth talking to us about industries: manufacturing software rather than forcing the process to fit the product.

If you are still working out your build-versus-buy position generally, our guide to custom software vs off-the-shelf sets out the trade-offs without assuming either answer. For a firm number, get in touch and we'll tell you plainly whether your case needs bespoke work.