AVEVA E3D Design
Alternative: 2D Engineering Extraction, Not 3D Authoring

No. E3D is a 3D plant design authoring suite: engineers model new plants in 3D, generate isometrics from the 3D model, manage piping spec, run clash detection. Pathnovo is a 2D engineering extraction layer: read existing PDFs and scanned 2D drawings, extract structured data, produce EPC deliverables. Different workflows: E3D creates 3D content; Pathnovo reads 2D content. Most owner-operators end up using both: E3D for new greenfield design, Pathnovo for legacy 2D drawings + brownfield digitisation + non-AVEVA sources.

Yes. This is Pathnovo's blue-ocean workflow per Excel S6 #1 ranking. Pathnovo extracts piping MTO from scanned + PDF + hand-drawn isometric drawings using 2D topology recognition (pipe segments, fittings, flanges) and isometric drawing structure parsing. No 3D model required. For projects without an E3D-authored 3D model, this is the only path to piping MTO from existing drawings. See the piping MTO from isometric workflow.

Both are tier-1 3D plant design authoring suites. E3D dominates global EPC for greenfield projects within the AVEVA ecosystem; Smart 3D has a stronger position in tier-1 owner-operator plants within the Hexagon SmartPlant ecosystem. Both share the same fundamental limitation: they generate 3D content but cannot extract from existing 2D drawings or non-ecosystem sources. Pathnovo bridges that gap for either ecosystem. See the AVEVA Engineering alternative and the SmartPlant Instrumentation alternative for related authoring-tool comparisons.

Realistically, no. E3D enterprise licensing is bundled within AVEVA Engineering contracts (typically $1M+ multi-seat scope for greenfield EPC projects). Mid-EPC contractors ($50M-$500M project scope) cannot absorb the licence + implementation cost. Pathnovo's credit-based pricing with full platform on every paid tier makes engineering data delivery accessible at mid-EPC scale without enterprise 3D authoring commitment. For mid-EPC scope where 2D drawings + extraction workflow is the primary need, Pathnovo is the fit. See pricing for plans.

Limited. E3D is an authoring tool; it consumes structured design data primarily through AVEVA Engineering + AVEVA Diagrams. Pathnovo feeds extracted data into AVEVA AIM (asset information management) and AVEVA Engineering through the AVEVA Connect data layer, where E3D can reference asset hierarchy and instrument metadata. For brownfield digitisation projects feeding into greenfield E3D-authored design extensions, Pathnovo provides the upstream extraction layer; E3D continues handling the 3D authoring. See the AVEVA AIM alternative for the AIM-specific integration path.

All three are 3D plant design authoring suites and they compete head-to-head for greenfield design work. The direct alternatives to AVEVA E3D inside the 3D-authoring category are Bentley OpenPlant (Bentley iTwin / ProjectWise ecosystem, strong for owners with Bentley civil infrastructure tooling), Hexagon SmartPlant 3D (dominant at Aramco / ADNOC / Reliance Jamnagar scope within the Hexagon SmartPlant ecosystem), and Autodesk AutoCAD Plant 3D (Autodesk AEC + BIM 360 ecosystem, mid-market EPCs preferring AutoCAD-native workflow). Choosing between them is primarily an ecosystem decision: AVEVA stack vs Bentley stack vs Hexagon stack vs Autodesk stack. Pathnovo is not a 3D-authoring alternative to any of them; we are a 2D extraction layer that sits upstream of whichever 3D authoring tool an organisation has chosen. For brownfield digitisation, mid-EPC project scope, or any work involving existing 2D drawings (PDFs, scanned isometrics, hand-drawn legacy content), Pathnovo extracts structured engineering data the 3D tools cannot read, then feeds that data into the chosen ecosystem (AVEVA AIM, Bentley iTwin, Hexagon SmartPlant Foundation, or directly into Autodesk-adjacent tools). See the Bentley OpenPlant alternative for the Bentley-specific comparison.

Position depends on the ecosystem decision the organisation has already made. AVEVA E3D dominates tier-1 EPC for greenfield projects within the AVEVA Engineering ecosystem (Engineering + Diagrams + AIM + Connect): largest installed base, strongest piping spec management, deepest integration with AVEVA AIM downstream. Bentley OpenPlant fits owners running Bentley iTwin + ProjectWise as the corporate engineering backbone, with civil infrastructure scope (pipelines, civil structures) alongside plant design: strong for integrated capital project portfolios. Autodesk AutoCAD Plant 3D fits mid-market EPCs and smaller owner-operators preferring an AutoCAD-native workflow with Vault for document management and Autodesk BIM 360 for collaboration: lower licence cost, faster ramp, but narrower piping spec management capability than E3D or OpenPlant at tier-1 scale. None of the three extract from existing 2D drawings or non-ecosystem sources; Pathnovo coexists with all three at the 2D extraction layer.