How Cross-Referencing different evidence documents works?

I would like to understand how different evidence documents can be cross-referenced safely without creating an issue of duplication or making the same evidence appear to be used for multiple criteria.

For example, suppose the research work and its publication are discussed under one criterion, while the actual prototype developed from that research was later transformed into a real open-source project, which received external recognition and gained real users. The latter evidence could demonstrate the adoption, practical application, and impact of the original research.

In such a situation, would it be appropriate to cross-reference the evidence by explaining something like:

The research work and publication are discussed under [relevant criterion]. The resulting prototype was subsequently developed into an open-source project, with its external recognition and real-world adoption demonstrated under [another criterion].

Would this be considered an appropriate way of connecting the evidence, while making it clear that the same document is not being relied upon to satisfy two criteria independently?

Also, if the research itself was conducted over approximately two years but the publication is relatively recent and therefore has limited or no citations, can the subsequent real-world adoption and recognition demonstrated elsewhere in the application be cross-referenced back to the research to help establish its impact?

In other words, where the original research evidence mainly demonstrates the research process, idea, and prototype, but the subsequent development demonstrates implementation, adoption, recognition, and impact, what is the safest and most effective way to cross-reference these pieces of evidence without creating concerns around evidence duplication?

Cross-referencing across criteria is safe, and it strengthens the application when done cleanly. Duplication only becomes a problem when the same document is submitted as the primary evidence for two criteria. Two genuinely different artefacts, the research and its publication as one piece and the open-source project with its adoption as another, are distinct evidence. Pointing from one to the other builds a coherent story and keeps each criterion resting on its own document.

The framing you drafted works. A short narrative line in each document explaining the relationship makes clear that each criterion rests on its own artefact. Keep each document self-contained enough that it stands under its assigned criterion on its own, with the cross-reference there to connect the two.

Citations are one measure of research impact among several, and a recent publication naturally won’t have accrued them yet. Subsequent real-world adoption and external recognition are legitimate impact evidence, and cross-referencing them back to the research is a reasonable way to establish that the work mattered. Make sure the adoption evidence carries the impact claim under its own criterion, so the research document demonstrates the process and originality while the linked project supplies the impact.