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Compare detailed information for two concepts using the SCT Browser Perspective: Comparing hierarchy.

Prerequisite steps: Browse SNOMED CT International Edition concepts


From any view in the SCT Browser, press  on the Perspective button in the header bar to see a drop-down options list of available perspectives:

  • Full 
  • Comparing 
  • Comparing hierarchy 
  • Responsive (tablets, phones) 

Select Comparing hierarchy to switch the presentation.

Perspective: Comparing hierarchy maintains the browser header bar, but changes to show two side-by-side Taxonomy panels, with a Search panel below the left-hand Taxonomy panel and a Concept Details panel below the right-hand Taxonomy panel.

The Search panel is identical in features and behaviour to that of Perspective: Full, primarily for the purpose of populating the two Taxonomy panels, although it can also be used to load and view concepts in the Concept Details panel just as in Perspective: Full.

Reloading clears Perspective: Comparing hierarchy

Reloading the page will reset the SCT Browser to the Perspective: Full default presentation.

Panel sizes can be adjusted

The relative sizes of the four panels can be adjusted by pressing and dragging their grey border bars. This can be useful to maximise a particular panel if the default sizes cause some desired viewing content to be hidden whilst comparing. The panels can also be scrolled vertically independently to alleviate such situations.

In the Search panel, find the first concept to be compared (as described in Find the SCTID for a known concept term or Find the FSN or PT for a known concept SCTID).

Selecting a search result will load that concept into the Concept Details panel, within which all the context details tabs are available, as in the Perspective: Full presentation.

In the Search Results list, press and hold the result row for the first concept to be compared. The selected row will be highlighted in blue, and a "Drag this" tooltip will appear.

Whilst holding the cursor selection, drag the selected item onto the left-hand Taxonomy panel. Whilst dragging, the concept FSN term will appear alongside the cursor arrow.

When the cursor is over the Taxonomy panel "drop-zone" a drop-target symbol will appear. Release the cursor hold to "drop" the concept.

Following a search result link does not change Taxonomy focus

Following a search result in Perspective: Comparing hierarchy changes the focus concept in the Concept Details panel, but does not change the focus concept in a Taxonomy panel.

The left-hand Taxonomy panel will now show a hierarchical tree view focused on the dropped concept.

Now use the Search panel again to find the desired comparison concept, and repeat the same steps to select, drag and drop, but this time drag the comparison concept to the right-hand Taxonomy panel.

The twoTaxonomy context panel hierarchies can now be compared side-by-side. Each hierarchy can be navigated individually (as described in Browse SNOMED CT International Edition concepts).

Following a concept link in either Taxonomy panel will load that concept into the Concept Details panel, allowing deeper analysis via its context details tabs if needed.

The two Concept Details context tabs can be navigated independently whilst retaining their focus concept for side-by-side comparisons of the information in each context tab.

Drag and drop can be used across the Taxonomy panels

If desired, a concept in one Taxonomy panel can also be dragged and dropped into the other to change its focus concept. In selecting it for drag and drop, that concept will also be loaded into the Concept Details panel.

Following another search result will load that concept into the Concept Details panel, regardless of the current status of the Taxonomy panels, which remain unchanged until either their hierarchy navigation is used, or another concept is dragged and dropped to change their focus.

Once done with comparisons, select Full in the header bar Perspective button drop-down options list to switch back to Perspective: Full.