Bowtie Filtering

Alex Apostolou

Bowties can be challenging to work with and view in a neat format.

It could be for a number of reasons such as:

  • There are a lot of nodes on the screen at any one time
  • Rejected nodes take up space
  • Inactive pathways take up space
  • The focus is almost always on one pathway at a time, not all of them

Generally, most users will prefer clarity around the specific details and less irrelevant information displayed.

Imagine being able, with just one click, to hide:

  • The Causal side of the bowtie
  • The Consequential side of the bowtie
  • All nodes related to rejected Causes
  • All Escalation Factors, Escalation Factor Controls, Enabling Events, Enabling Event Controls, and Intermediate Events
  • All Controls
  • All non-Critical Controls

Welcome to bowtie filtering.


On the toolbar, we have a new button for bowtie filtering:

Bowtie Filtering 1

So that a bowtie that looks like this:

Bowtie Filtering 2

The changes can be significant and greatly improve readability.

Filtering Non-Critical Controls and Special Items

If you hide all non-critical Controls and Special Items, it would look like this:

Bowtie Filtering 3

You can obviously still see the hidden items, but they are out of the way, hidden in those smaller “grouped” elements.

And as the filter is applied on top of what’s already been filtered, you could continue filtering down until you arrive your optimal view.

Filtering all Controls

This filter can be useful when reviewing the Causes or Consequences in a bowtie:

Bowtie Filtering 4

Filtering One Side or the Other

Showing just the Preventative side:

Bowtie Filtering 6

Or showing just the Mitigative side.

Bowtie Filtering 5

Resetting the Filter

To reset the view, simply select the “Show All Items” option.

Is it helpful to you?

Total Votes: 2