I am in the final stage of completing a thesis.
Context: I propose a new knowledge representation to tackle information overload in science (E-Science, scientific communication, linked data). Specifically, I created a knowledge representation of scientific problems.
In the introduction, I motivate the need of the new artefact based on two things: 1. A general need for digital knowledge representations for automatic reasoning, being able to filter out relevant aspects of scientific work to make them findable, 2. The unavailability of a knowledge representation for a specific aspect of scientific work; namely, scientific problems ("challenges", "gaps").
Other approaches that present a digital knowledge representation of aspects of scientific work were included as related work, but they also exemplify that the aspect I focus on is missing.
Do I incorporate this related work in the introduction, or present them in a separate related work section? Would it be better to state "To this day, no representations of scientific problems exist" in the introduction and show the other approaches in a separate related work section, or is it nicer to show these other approaches in the introduction first (by including a subsection with all related work - separate subsections per approach - what would the title of this subsection be?), to then base the motivation of creating this new representation in an "approach" subsection which contains the research questions?