IB Design Technology (DT) SL Extended Essay Example

The student chooses a relevant and meaningful design problem with a clear real-world tension between comfort, capacity, and constraints.

The student's investigation follows a logical path from defining the problem to considering possible design transfers and aircraft limitations.

The student shows some informed planning by linking the question to a specific aircraft context and to both primary and secondary research intentions.

The student connects the topic to concrete design factors such as seat pitch, anthropometrics, evacuation, and cabin dimensions.

The student's question is still too broad in key terms, so the investigation is not sharply bounded by measurable criteria.

Several important phrases are undefined, which makes it harder to judge exactly what counts as an improvement.

The planned method is clearer than the executed method, so the investigation needs a more traceable research process.

The focus drifts across several related comfort themes instead of staying tightly centered on one testable design problem.

The student shows solid understanding of ergonomics and aircraft-cabin design by using terms such as seat pitch, legroom, anthropometrics, pressure distribution, and vibration in relevant ways.

The student applies sources mostly appropriately to support the discussion, especially when linking body measurements and comfort factors to the seating problem.

The student makes a good effort to explain technical concepts before using them, which helps the reader follow the argument.

The student demonstrates awareness of how source evidence can inform design choices rather than just listing information.

Some technical claims are not always phrased with enough precision, especially when discussing what is proven, what is proposed, and what is merely suggested by a source.

A few references and source attributions are not handled consistently, which weakens the reliability of the supporting evidence.

The aircraft-specific implications of some sources are not developed as fully as they could be.

The argument would be stronger with more direct aviation certification, airline-layout, and cost-related evidence.