Model-Based E/E Development

PREEvision – This is
Model-Based E/E Engineering

The E/E Engineering Solution

Electrification, autonomous driving, connectivity inside and outside the vehicle: The onboard electronic network has become the brain of today’s cars.

The ever-increasing sharing of data within vehicles and to systems outside of the vehicle raises the complexity and makes the development of electric and electronic systems in vehicles, the so-called E/E development, more and more challenging.

PREEvision is a model-based development environment, that faces these challenges, and supports the entire E/E development – from architecture design all the way through to the final wiring harness.


  • Design, management and documentation of complete E/E systems in one tool
  • Integrated traceability
  • Graphical modeling in diagrams
  • Full support of AUTOSAR methodology
  • Design of safety-relevant systems acc. to ISO 26262
  • Variant and product line management
  • Complete development from architecture to wiring harness based on one source

Application Areas

PREEvision Graphic User Interface

Model-Driven E/E System Development

PREEvision is the premier tool for model-based development of distributed, embedded systems in the automotive industry and related fields. This engineering environment supports the entire technical development process in a single integrated application.

It offers comprehensive functions for both classic and service-oriented architecture development and all aspects of an E/E system including requirements engineering, AUTOSAR system, software and communication design as well as wiring harness development. The integrated and model-based approach helps complex tasks to remain straightforward and controllable.

PREEvision supports the tried-and-tested system engineering principles of abstraction, decomposition and reuse and can serve as engineering backbone: it enables parallel work on a common database from multiple locations.

PREEvision Use Cases

PREEvision|E/E System Architecture Design

Develop E/E system architectures and evaluate and optimize designs.

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PREEvision|Product Lines and Variant Management

Efficient E/E development without redundancy via libraries and reuse of designs.

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PREEvision|Integrated Requirements Engineering

Manage requirements for vehicle electronics and automotive E/E systems.

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PREEvision|AUTOSAR System and Software Design

Incorporate AUTOSAR concepts in software and hardware architectures.

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PREEvision|AUTOSAR Communication Design

AUTOSAR compliant communication design of all data elements transferred over the bus.

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PREEvision|AUTOSAR Adaptive System Design

Future-proof modeling of powerful and flexible adaptive AUTOSAR systems.

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PREEvision|Automotive Ethernet Design and SOA

AUTOSAR compliant design of Automotive Ethernet networks and clusters.

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PREEvision|Model-Based Wiring Harness Design

Compare alternatives, optimize the design and develop the wiring harness in detail.

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PREEvision Process and Team Support

PREEvision|ISO 26262 and Functional Safety

Support from system design, through HARA, FMEA and FTA, to the safety case.

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PREEvision|Test Engineering and Test Management

Manage testing activities across the entire E/E development process.

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PREEvision|Collaboration Platform

Team collaboration and cross-location multi-user operation in complex E/E projects.

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PREEvision|Project, Change and Release Support

Create, plan and monitor E/E projects and manage changes, defects and releases.

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Highlights Version 9.5

New Features and Most Important Changes

  • High-Performance Computers
    Due to the computing demands, high-performance computers (HPCs) complement conventional ECUs in vehicles. PREEvision 9.5 provides a dedicated diagram to model HPCs including microcontrollers, microprocessors, and internal buses.
  • AUTOSAR Adaptive
    PREEvision 9.5 supports AUTOSAR Adaptive version 19-03 and facilitates the modeling of mixed systems of AUTOSAR Classic and Adaptive. A dedicated adapter translates between the software interfaces of both platforms.
  • Platform and Product Line Management
    The platform approach supports E/E development in levels or stages. Starting from a basic architecture for a vehicle platform, you can refine and detail the design downstream for single variants in an efficient way.
  • Server API
    The REST API allows web services and applications.
  • Modeling Support and Usability Improvements
    Simplifying the design of E/E systems is one of the main goals of PREEvision 9.5 and Service Pack 3 is the next big step towards this goal: It includes modeling support and usability improvements for data types, wiring diagrams, and variant management to name a few.


Layer Model

How to Design Entire Automotive E/E Systems

Infographic of the PREEvision abstraction layers

PREEvision's data model with dedicated abstraction layers

The PREEvision E/E data model is the foundation for a consistent model-based method of working from the requirements engineering to all the implementation steps. All the aspects of an automotive E/E architecture are modeled in an integrated approach. From the requirements and the architecture design all the way through to the final wiring harness.

In adopting this approach, PREEvision follows the three proven systems engineering principles of abstraction, decomposition and reuse and supports the modeling of product lines and product variants with various model layers.

Additionally PREEvision provides an integrated process and team support including test engineering and management, support for functional safety as well as tools to manage changes, defects and releases.


PREEvision Poster

E/E engineering always in sight

The infographic to get an overview of PREEvision's comprehensive data model and dedicated abstraction layers.


Products and Product Options

PREEvision Product Options

With PREEvision products, you can compose the optimum configuration for your use cases:

PREEvision Architect supports all modeling layers for product lines; PREEvision Function Designer and PREEvision Electric Designer support subareas.

The Collaboration Platform is the add-on for team operation. The Server API allows the development of web applications.

PREEvision Architect

PREEvision Architect provides the integrated scope of functions for designing an E/E architecture, ranging from requirements management, logical architecture, AUTOSAR system design, software and hardware architecture, to wiring harness and vehicle geometry. Model evaluation, optimization and documentation round-out the design process. Also, development to series production readiness is supported in the following areas: consistent description of requirements, specification of functions, components, networks, and definition and maintenance of logical and physical interfaces. Development support for the design of safety-related systems according to ISO 26262 as well as test engineering and test management are also included.

PREEvision Function Designer

PREEvision Function Designer fully supports the AUTOSAR system design process alongside the description of requirements, design of logical functions, software and hardware components, network architecture and communication design. Development support for the design of safety-related systems according to ISO 26262 as well as test engineering and test management are also included.

PREEvision Electric Designer

PREEvision Electric Designer supports requirements management, hardware architecture design, circuit diagrams, wiring harness design, and vehicle geometry. Development support for the design of safety-related systems according to ISO 26262 as well as test engineering and test management are also included.

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PREEvision Collaboration Platform

The server-based Collaboration Platform enables team operation of PREEvision and includes product and release management as well as change and configuration management.

PREEvision Server API

The Server API enables the development of web applications to edit and visualize model contents. The REST API allows read and write access to artifacts including their life cycle state, rich texts, files, diagrams and metrics.

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Product Descriptions

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Overview of the system requirements for clients and servers when using PREEvision as well as the system architecture of the PREEvision Collaboration Platform.

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A summary of what is new in each PREEvision release including a brief documentation of the latest functions and improvements contained in the Service Packs.

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The PREEvision brochure is available right away as download or printed edition!


PREEvision Brochure

E/E engineering in your hands

The compact way to get to know our E/E engineering solution PREEvision and its comprehensive functions.


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PREEvision Articles

PREEvision features and functions described in expert essays and technical articles. Free download!

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PREEvision Videos

On stages and screens: What PREEvision is and what PREEvision can do. Watch the videos!

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PREEvision Webinars

PREEvision features and functions introduced in one-hour webinar sessions. Free registration!

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Find answers and solutions in extensive and detailed FAQs. Explore the most common support issues.

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Let’s Talk About PREEvision!

Join two days of exchange of ideas, networking, discussion, and feedback: The PREEvision UserDay is the annual Vector event for the global PREEvision user community. It is all about state-of-the-art model-based E/E engineering. All users and licensees are cordially invited to participate in the event and the accompanying workshops!


PREEvision Workshops and Training

PREEvision Workshops

PREEvision supports the specification, design and optimization of all components of distributed electronic vehicle systems. Our workshops first teach you about the underlying mechanisms and concepts of PREEvision. Vector offers workshops with focus on either function development or hardware design.

Related Pages

PREEvision UserDay

The annual Vector event for the PREEvision user community all around model-based E/E engineering.

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Distributed Systems

Vector tools to design and develop distributed, embedded systems, networks and networked ECUs.

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