CAD — Computer-Aided Design

CAD (Computer-Aided Design) describes the software tools engineers use to design products digitally. Modern CAD goes far beyond drafting: 3D parametric modelling, simulation, generative design, integrated electronics design, manufacturing-process planning. For DACH manufacturing operations, CAD is the upstream end of the product lifecycle — engineering decisions made in CAD ripple through PLM, ERP, manufacturing and service. CAD integration with downstream business systems is one of the largest single drivers of operational data quality.

Leading CAD platforms

Mechanical CAD: SOLIDWORKS (Dassault, dominant in DACH mid-market), Siemens NX (large industrial and automotive), PTC Creo (industrial equipment), Autodesk Inventor (broad mid-market), CATIA (Dassault, aerospace and large automotive), Autodesk Fusion (cloud-native, growing SMB). Architectural CAD: Autodesk Revit (BIM-focused, dominant in modern construction), Allplan (DACH-built, strong in Stadtwerke and construction), ArchiCAD, Bentley MicroStation. Electrical CAD: EPLAN (Rittal-owned, DACH-dominant for electrical-engineering of industrial equipment), Mentor Capital, Solidworks Electrical. PCB/electronic CAD: Altium Designer, Mentor PADS, Cadence Allegro, Autodesk Eagle. Specialist CAD: Esko (packaging structural design), Optitex, Gerber, Lectra (textile and fashion). For DACH mid-market machinery and metal-processing operations, SOLIDWORKS and Autodesk Inventor are dominant in mechanical; EPLAN dominates electrical-engineering integration.

PDM and PLM context

CAD files alone do not constitute product data management. PDM (Product Data Management): version control, check-in/check-out, basic workflow for CAD files. Usually bundled with the CAD vendor: SOLIDWORKS PDM, Autodesk Vault, Siemens Teamcenter Express, PTC Windchill PDMLink. PLM (Product Lifecycle Management): broader scope including engineering change management, regulatory compliance, supplier collaboration, lifecycle workflows. The PDM-to-PLM transition typically happens above 50 engineers or in regulated industries. CAD-PDM-PLM-ERP chain: well-integrated chains automate the flow from engineering design (CAD) through structured data management (PDM/PLM) to manufacturing execution (ERP). Poor integration in any link breaks the downstream data quality. For DACH manufacturers, the CAD-PLM-ERP integration is one of the largest operational-IT investments alongside ERP itself.

CAD-to-ERP integration

Two integration patterns dominate. (1) Direct CAD-to-ERP: small operations connect CAD plus PDM directly to ERP, with engineering BOMs exported from CAD and imported into ERP via standard connectors. Suitable for operations without separate PLM. (2) PLM-mediated CAD-to-ERP: CAD feeds PLM, PLM orchestrates the engineering-to-manufacturing handoff, structured BOMs flow from PLM to ERP with effectivity dates and change-control documentation. Standard for mid-market and larger manufacturers. Key data flows: (a) Item master records (engineering items with PLM/ERP shared IDs), (b) BOM structures (eBOM from CAD/PLM to mBOM in ERP), (c) Routings (process plans from CAM/PLM to ERP routing master), (d) Engineering changes (ECO propagating to ERP-side BOM updates).

Current trends

Three trends shape CAD in 2026. (1) Cloud-native CAD: Autodesk Fusion 360, Onshape (PTC) lead the cloud-native CAD market. Traditional vendors (Dassault, Siemens, Autodesk) increasingly offer cloud-hosted versions of their desktop products. Cloud delivery simplifies CAD-PLM-ERP integration through standardised APIs. (2) Generative design: AI-driven design exploration generates novel component shapes meeting functional requirements with minimal material. Major CAD vendors include generative-design capabilities (SOLIDWORKS xDesign, Fusion 360 Generative, Siemens NX Generative Design). (3) AR/VR design review: immersive design review tools (Microsoft HoloLens, Meta Quest Pro, dedicated VR-CAD tools) replace some physical-prototype review steps. Adoption is selective; the technology has matured faster than typical engineering workflows have adapted.

Frequently Asked Questions

SOLIDWORKS or NX for mid-market DACH machinery?

SOLIDWORKS dominates DACH mid-market for its user-friendliness, strong partner network and lower TCO. NX is preferred for larger operations, automotive and aerospace where deeper capability and tighter Teamcenter PLM integration matter. Many DACH machinery operations standardise on SOLIDWORKS through 200-employee scale, migrating to NX when complexity demands it.

How important is electrical-CAD integration?

Critical for industrial-equipment manufacturers. The mechanical-electrical integration through tools like EPLAN P8 plus mechanical CAD plus ERP delivers measurable productivity gains and quality improvements. Without integration, the EBOM and electrical BOM drift apart, causing wrong purchases and production errors.

Can cloud CAD work for our security-sensitive engineering?

Increasingly yes. Major cloud-CAD vendors offer EU data-residency options, customer-managed encryption keys and air-gapped deployment options. Defence and government-classified work typically still requires on-premises CAD; mainstream commercial engineering work in regulated industries (medical, pharma) operates well on cloud-CAD with the right configuration.