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Simultaneous Engineering

The ensemble of methodologies, techniques, and tools that enable the parallel engineering of a product and its production process is known in the automotive field, as simultaneous engineering and enables us to:

  • Improve productivity
  • Reduce modification loops
  • Take informed and contextualized decisions, anticipating critical issues
  • Optimize timing and cost of the final product

We can guarantee that, from the first stages of product design, all aspects of its lifecycle are taken into account, including functionality, producibility, assembly, testing, servicing, and environmental impact.

Body Assembly

Each vehicle, being a complex system, positions us in front of many technological challenges in relation to the assembly of the multiple parts that it’s composed of.

For years ERRE team has been managing projects characterized by large numbers of parts and has developed an established practice in defining the typical assembly sequences for automotive applications.

The use of simultaneous engineering techniques, supported by the most advanced virtual validation programs, help ERRE GES’s team to define the assembly sequences with assertiveness for each specific application. The Main Activities Include:

  • Definition of an assembly concept
  • Definition of loading sequences
  • Processing sequence
  • Tolerance chain analysis
  • Work analysis (MTM)

Draft Study

Setting off from an idea, in this phase, we build the foundation for the development and optimization of a finished product.

The preliminary draft codes integrate, in a single area, the simplified models of diverse aspects of design, enabling adaptation to the specific customers’ requests.

Our expert can develop and manage all phases before the series production: from preliminary analysis to product engineering, from advanced simulations to the identification of the best solutions in terms of product performance or optimization of timing and costs.


In our experience, product design engineering consists of the choice of the best compromise in relation to the targets and constraints: this does not always coincide with the best engineering solution.

We have the right competencies to carry out geometric and functional validation of complex systems. Our design teams are seamlessly integrated, therefore enabling the high level of coordination needed to carry out virtual validation activities in parallel, reducing mistakes and modification iterations.

The Main Activities Are:

  • Virtual analysis of interferences
  • Matchability analysis
  • Assembly play analysis (welding tools, gluing tools, riveters)
  • Tolerance chain analysis
  • RPS definition
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