csenn / layer_demo

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Layer Health Demo

The app was scaffolded using create-react-app. To build and run:

npm install
npm start

Design

The trickiest part about this exercise was coming up with a design to handle the one-to-many relationship between patients and notes while keeping the design simple and clean.

The approach taken was to use set of filters in a panel to filter notes, and then group and present them by patient. The demo should illustrate how this works and seems to effectively handle all the requirements.

One possible issue with the current design is for the case when an individual patient has a huge number of notes. I confirmed this was not a problem with the data set provided, but certainly could be an issue in theory. A possible solution would be pagination within a patient section, or a "load more" type functionality.

Alternative Designs

First and most important, when designing a solution for a customer it is much better to work with them and ask a lot of clarifying questions, and build designs with a knowledge of a whole set of needs. I didn't do that here in this toy example just because this is an interview assignment and we have a post-design discussion planned. There were also limits to the complexity that could have been handled for a 1.5 hour target timeframe.

Some other possible designs that could potentially work involve having a router and separate pages for searching notes/patients, and even sub-routes where you can navigate to a "patient_profile" and see all data for that patient.

In an alternate design, it may not be necessary to group notes by patients, maybe sorting them by date would be better. Each of the notes could then link to a patient page. It really depends on the details of what user actions are required. That would probably be more of a "data analysis" or search type UX, rather than a "patient centric" UX.

Technical Discussion Topics

  • Search notes. In this app I used the string.includes() function from javascript. This looks for an exact match of input, however more complex search could be used such as token based searching, advanced queries concepts like matching with quotes as in Google search, etc.
  • We could also allow the "search input" to search for patients/providers and other fields (rather than just the notes field)
  • Pagination done by patient group, rather than Note.
  • Collapsing long notes and opening with toggle, for both render efficiency and visual reasons.
  • Using sx for styles. A simple and efficient way to inline-css using Material-UI, other options work too though of course
  • Using px for pixels, just keeping it simple
  • Just use React State instead of state management for simplicity
  • The Provider and Patient Select would be better as a typeahead of some sort
  • Assume data is valid, such as note.patient_id resolving to a note
  • Testing - Didn't add testing due to time constraints, a UI like this would probably do well with a Cypress test framework, along with some Unit tests

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