Implementation of a tool-supported requirements model for responding to a request for quotation for the new construction of submarines

Christian Knop

"With the assistance of 3DSE's methodical and operational support, we were able to create all engineering quotation documents with the help of tools in just 6 months."

Christian Knop

Subproject manager

ThyssenKrupp Marine Systems

Implementation of a tool-supported requirements model for responding to a request for quotation for the new construction of submarines

thyssenkrupp Marine Systems (tk MS) is a leading European naval systems company with an extensive product portfolio including frigates/corvettes, non-nuclear submarines, naval command, control and sensor systems as well as unmanned/autonomous surface and underwater vehicles.

Since 1960, tk MS has delivered more than 170 submarines to over 20 navies worldwide and accompanies its customers through the complete product life cycle – from design, development, production and system integration to in-service support.

With the receipt of the Request for Quotation (RfQ), the award phase began as part of a procurement program for the construction of new submarines.

To be considered for the final selection process, the tkMS offer had to be submitted on time and not only be technically convincing, but also take industrial cooperation into account, among other things.


In order to meet the needs of the navy, an existing tk MS submarine design was used and further developed for special missions with long ranges. For the more than 200 engineers, this meant taking into account a predefined product strategy and planning new innovative technologies and systems.

By consistently reusing artifacts (requirements, specification and design documents), the resources provided in engineering were to be used as efficiently as possible to create the offer documents within six months. Together with 3DSE, a requirements model was therefore set up in Doors Next Generation (DNG) to match the quotation project, with the aim of:

  • enable the re-use of artifacts (e.g. requirements, SSS, SSDD)
  • to establish a single source of truth that is used by all engineering experts involved in the quotation creation process
  • ensure clean traceability from the RfQ requirements to the quotation documents and supplier specifications
  • quickly evaluate changes to RfQ requirements by the Department of Defense and derive implications for the bid products to be created
  • Create proposal documents directly in DNG and export them at the push of a button

In a first step, the requirements for the engineering offer documents – compliance matrix, verification matrix and technical specification – were recorded, reviewed and evaluated and suitable workflows for creating these offer documents were derived.

The necessary data for filling in the compliance response and the verification matrix was recorded in DNG and exported in such a way that it could be fed directly into the formats defined in the RfQ (xml and Excel).

To create the technical specifications, a system breakdown was first defined. After evaluation of the artifacts by the engineering department with regard to reuse, these were migrated into the requirements model, linked with the customer requirements and further developed by the engineering department.

In order to ensure that the offer documents were provided on time, transparency regarding the current processing status had to be available at all times so that suitable corrective measures could be derived at an early stage. A DNG Reporting Cockpit with various evaluation views was created for this purpose, as well as an error heatmap that shows whether the attributes of the stakeholders and system requirements are filled according to the specifications. In addition, individual reports were introduced for the main system managers to show the processing status of the technical specifications and gaps in the requirements model (e.g. missing links between system requirements and system elements).

The DNG Reporting Cockpit was flanked by a support and enablement concept tailored to the needs of the engineers and a user guide on Confluence. This triad made a significant contribution to ensuring that all engineering offer documents were provided on time in accordance with the RfQ requirements.

“The workflows and reporting cockpits set up together with 3DSE helped me to do the right things right,” says Christian Knop, sub-project manager for engineering at tk MS.

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