Report of test of widgets for DREAM

EDIT by @jl-wynen: Added links to issues

Feedback of test of workflow-widget-dream.ipynb (Dec 3rd 2024)

• The header should be corrected since it refers to LoKI. It could be replaced by

This notebook illustrates how we can use ESSreduce’s workflow widgets to generate a graphical interface for running a Diffraction reduction workflow using simulated data for DREAM.

• Which entries are compulsory or optional? (https://github.com/scipp/ess/issues/107)

• Only csv files are supported for loading. And there is no indication on the supported format. (https://github.com/scipp/ess/issues/106)

• A kind of file uploader would be useful.

• What are the "Extended Outputs"? The list of items does not seem to be all linked with DREAM or Diffraction (like Monitor1,2...6)

• For the bank name, the interface failed when I typed the name with a capital letter. It could be useful for future versions to have "RadioButtons", "Select" or "SelectMultiple" from ipywidgets to avoid misspelling issues. (https://github.com/scipp/ess/issues/499)

• It is difficult to see if there are any processes running or if the interface is stuck (https://github.com/scipp/ess/issues/105)

• Selecting "DreamGeant4ProtonChargeWorkflow" and ReducedTofCIF as typical output, I get an error
  (https://github.com/scipp/ess/issues/104)

Start with workflow-widget-dream.ipynb and review the listed feedback against linked issues 104, 105, 106, 107, and 499. Determine which items remain unresolved and whether this report should be split; the work is done when each actionable concern is resolved or tracked in a separate issue.