Understanding the Architecture of the 3DEXPERIENCE Platform

In today’s rapidly evolving engineering landscape, digital transformation often stalls when critical data like CAD files, simulation results, or change orders – reside in isolated silos. Dassault Systèmes’ 3DEXPERIENCE Platform addresses this challenge. It offers a unified, service-oriented foundation that spans the entire product lifecycle – from concept and design to manufacturing and after-sales.

In this post, we’ll break down the 3DEXPERIENCE architecture layer by layer, helping system architects, IT admins, and engineers understand how it scales, how it protects IP, and where to extend its capabilities.

High-Level Architecture: The Three-Tier Bedrock

At its core, the 3DEXPERIENCE platform is structured around a classic three-tier architecture:

• Client Tier
• Application Tier
• Data Tier

While this model is familiar in IT, 3DEXPERIENCE tailors it for product lifecycle management (PLM) and real-time 3D collaboration, enabling each layer to evolve independently while supporting a seamless user experience.

Client Tier: UX Without Borders

The client tier ensures users can access the platform anytime, anywhere, using tools best suited for their role:

• Web Top (Zero Footprint): Launch dashboards, BOM views, or tasks directly from a browser – no installations or plugins needed.
• Rich Native Apps: Power users benefit from GPU-accelerated tools like CATIA, DELMIA, and SIMULIA.
• Mobile Apps: Engineers can review 3D models, approve changes, or report issues from iOS/Android devices, even with limited bandwidth.
• Unified Security: Whether on-site or remote, users go through a consistent SSO and TLS handshake, ensuring both convenience and security.

Application Tier: Microservices in Concert

The platform’s microservice architecture ensures modularity, scalability, and agility. Key services include:

All services are exposed via REST APIs, with SOAP and CAA options for legacy or deep integrations.

Data Tier: A Single Source of Truth

A strong data layer ensures data integrity and performance:

• Metadata Layer: Backed by Oracle or PostgreSQL, supporting hundreds of object types and customizable schemas.
• Vault Servers: Deduplicated, compressed file storage with efficient delta transfers.
• Exalead Index: Enables faceted, semantic, and full-text search across metadata and file contents.
• Resilience: Disaster recovery topologies replicate databases and file vaults across sites, while index clusters self-rehydrate.

Infrastructure & Deployment: Pick Your Cloud

Choose the right deployment model for your needs:

Regardless of mode, all setups use Apache TomEE, reverse proxies, and sticky session load-balancers enabling smooth migration between models.

Security: Trust by Design

Security is deeply integrated into every layer:

• Authentication: Supports SAML, Kerberos, LDAP, and OAuth2.
• Authorization: Contextual RBAC for example, suppliers can download STEP files but not native CAD.
• Encryption: TLS 1.3 in transit, with optional AES-256 at rest.
• Audit Logging: Immutable records for all object events ensure compliance.

Extensibility: From No-Code to Full-Code

Whether you’re a business analyst or a hardcore developer, there’s a way to customize the platform:

• CAA V6 SDK: Extend the platform with C++/Java add custom menus, commands, or background services.
• EKL (Engineering Knowledge Language): Create design rules, validation checks, and automation scripts.
• REST Widgets: Build JavaScript-based mashups that integrate PLM data with tools like Jira, SAP, or IIoT.
• Business Process Templates: Drag-and-drop editor for change workflows—no code required.

Why This Architecture Matters

Conclusion

The 3DEXPERIENCE Platform isn’t just a set of tools – it’s an ecosystem built on a robust, scalable, and secure architecture. By understanding its layered design – from clients and services to data and extensibility – you’re better equipped to deploy it strategically, customize it safely, and grow it alongside your innovation goals.