V2-model phase 3



Phase 3:
Realisation & Integration

Way of working MTA with our own V²-model.

We work from components to units, combined units create a module and the various modules combine into the end product.

Supervisor Assembly

Stefan Verbeek

The trick is to think critically about all aspects from the start, during the design process. This provides a good foundation that will considerably ease the realization and validation of a system. A good start is really half the battle in our V²-way of working!

Supply Chain Engineer

Vincent van Eijk

Within the Supply Chain Team of MTA, Vincent mainly focuses on developing the Supply Chain and optimizing the cooperation between MTA and its partners.

Stefan directly manages Assembly. He is mainly responsible for the optimization and automation of the processes that happen on the assembly floor.


From part, composition, unit, module to product

Stefan: “Product and production engineering share one common thread and that is the order in which everything comes together. We work from components to units, combined units create a module and the various modules combine into the end product. A unit has a number of requirements. The most important requirement is that it must be able to function stand-alone, so that it can be tested individually without a complete system.

  • Manufacturing
  • Assembly
  • Testing
  • Integration testing
  • Software testing


To make this possible, we design test tooling in phase 2, which we use in phase 3 to test individual units. We can correct any defects at an early stage and on a small scale. Therefore, we guarantee that there are no surprises when integrating units and modules.

Stefan continues, “We immediately include any changes that take place during the realization of the prototype in a change list. From this list, we work in parallel with the realization of the prototype, on the improvement and elaboration of any changes.”

Vincent adds, “Due to the modular unit philosophy, this can often be changed on a small scale without affecting other units or modules.”



Primarily, all information required to assemble a machine or module is documented in the technical product documentation (TPD). However, the TDP doesn’t always document all assembly details which might be of the great importance for the final quality of the product. That is why MTA developed the Assembly Quality System (AQS).

In this digital quality system, various customer and project-specific control points are documented. Stefan continues, “Think of intermediate physical measurements of dimensions or tolerances of certain parts.

The AQS system allows assembly technicians to record data such as the use of tools or serial numbers for parts traceability.”

7 advantages of the AQS

  1. Ensuring consistency
  2. Digital availability
  3. Feedback tool
  4. Always up-to-date
  5. Registration of issues
  6. Improving efficiency and productivity
  7. Customized information

Quality monitoring

Because all information is displayed in a clear and structured way in the AQS, the technician can quickly and efficiently carry out the assembly process. This information is determined in advance in phase 1 and phase 2 and tested with AQS in phase 3. Stefan states, “In this way, we monitor the quality in real time and register the workload during the assembly process”.


Assembly Quality System

Vincent says, “The AQS is a tool for the technician to provide feedback, for example on work instructions, the TPD or parts of our supplying partners. A targeted interaction between technician and (supply chain) engineer is therefore simple and efficient. The feedback that the technician provides in the AQS can be used to trigger improvements in production, both generic as well as product specific.”



“It is tempting to focus only on the product prototype and ensure that the performance is as the customer expects. This is a pitfall if you ultimately want to scale up to series production. Obviously, the performance must be as expected, but every step in the realization and integration of the prototype must offer the guarantee that this will not deviate from the final series production.  MTA therefor not only focuses on reviewing product prototype performance but also on the performance and scalability of the prototype production system.

This not only applies to our own internal processes, but also to the cooperation with our partners within the total supply chain. For example, we make agreements at an early stage per supply-partner based on the intended scale of the series production. We record these agreements for quality, logistics, technology and costs and agree on checks, measurements and reports that need to be supplied with parts. We already check these requirements with the first prototype.” Vincent said.


Phase 2

Phase 4