Subsequent design decision | Human factors principle(s) applied or Interview results |
---|---|
1. Important information is presented on a single screen | |
2. Action buttons are color coded Blue for “Accept” button, red for “Override” button | Visual Cue [28] |
3. Risk bar visualization indicates the danger of mutation Red for homozygous mutation, orange for heterozygous mutation The risk is categorized into high, moderate, low | |
4. Information is grouped into categories | Decision-making alignment Chunking [31] Three main criteria are: genotype result, dosing adjustment recommendation from references, and new medication order recommended |
5. Recommendation(s) from the PGx-CDS is positioned so physicians can visually compare it to their current medication order | Proximity compatibility principle [32] Minimize user memory load [33] |
6. Additional information (e.g., lab values, references, calculations, immunization such as flu shot, TB) and contact information) are presented as supplemental information (via clickable buttons) to avoid information overload | Minimize user memory load [33] Flexibility for user control of data display [33] Interview results: PGx-CDS Content Examples from the interviews: “Less is more,” “One of the biggest things to know is the ANC [absolute neutrophil count], the platelet… so you can [evaluate the new order recommended]” “[Information from referencces] was condensed, it could be more helpful if you could turn things [certain lab values, calculations] off.” |
7. Supplemental information (e.g. calculation, lab values) can be view simultaneously with the main information | Minimize user memory load [33] |
8. Physicians can choose between two options for reviewing reference sources: 1) access information online or 2) send references to their own, individual email | Flexibility [33] Interview results: PGx-CDS content Example: “It would be nice to have [two options for reviewing reference sources] because most clinicians are not going to have time to read it right there” |