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Business domain project (EOP): your big interdisciplinary project.

How to choose a topic, build the research question, and pass the oral exam

The business domain project — commonly called EOP — is where the basic idea of EUX becomes most clear: you must combine secondary school theory with your vocational subject area in one combined written project and defend it in an oral exam. According to the Ministry of Education's guidance for the business domain, you specialise in a self-selected area using two of your subjects, where at least one must be at B-level and at least one must be programme-specific. In other words, it is not just a school task — your trade must be part of the project.

§What is the business area really?

The business domain is the part of the EUX course that connects secondary school subjects and vocational education. Throughout the course you work in the business domain using theory from the secondary school subjects to address issues in your industry — and EOP is the culminating conclusion of that work. The EOP exam is oral and is based on your written answer, as with major projects at secondary schools.

§The good subject: concrete, professional and possible to investigate

  • 01Choose a topic from your own everyday life in the trade — something you have seen, tried or wondered about in your internship
  • 02Make sure that both subjects can really contribute: an academic subject must be able to provide theory or method and the profession-specific subject must be able to provide professional reality
  • 03Avoid items so broad they cannot be examined—'sustainability in construction' is a theme not a problem statement.
  • 04Check that material exists: datasheets, standards, figures, cases, or own measurements
  • 05Choose something you're willing to spend weeks on — the motivation can be felt in both the task and the presentation

§From subject to problem statement

A good problem formulation is a question the project can actually answer. A useful rule of thumb is to build it in three layers: a descriptive layer (what is the situation?) an analytical layer (why is it like that — what does theory say?) and an evaluative or action-oriented layer (what can be done and what are the consequences?). Write a draft early and adjust it during consultation with your supervisor — it is normal for the problem formulation to tighten as you get to know the subject.

Phase.What's happeningTypical pitfall
Workpiece selectionBrainstorm, trade choice, scopeTo choose too broadly or too late
Problem formulationDraft advisor meeting editing.Questions that can only be answered with yes/no
Examination.Theory, material, possibly your own data from practiceTo collect fabric without sorting
WritingStructure, analysis, conclusion, bibliographySaving the writing for last week
Oral testPresentation and professional dialogueTo read instead of explaining

§The verbal exam: explain, don't recite

For the exam you present the project's core and then enter into dialogue with the examiner and censor. What distinguishes good performance is rarely beautiful slides, but the ability to explain your choices: why exactly that theory, why exactly that limitation, what would you do differently? Practice the presentation aloud — preferably for a fellow student or a colleague from the internship — and prepare for the weak points in the assignment. The censor will find them anyway, so it's better that you've thought the answer through yourself.

  • 01Build the presentation around the project's red thread: question → investigation → answer
  • 02Keep track of your sources and your numbers — you can be asked about them
  • 03Mention the project's limitations yourself before the examiner does.
  • 04Practice the transition from monologue to dialogue: most of the time is spent asking questions
  • 05Start with concrete examples from your trade — that's where you're strongest

EOP is not an extra burden on top of the education — it is where you prove that hands and head work together.