Three and a half Roses

MECE lists

Mutually Exclusive and Collectively Exhaustive lists are a very profound way to look at the lists way make both consciously and unknowingly.

The idea is that whenever you create a list, you make sure that:

  • The items in the list do not overlap
  • The items in the list cover the complete subject they the list they are part of is about
  • The level of abstraction of the items is the same

We tend to make lists with overlapping items to make sure we cover every bit of a subject. We also tend to cover some areas of a subject with finer grainer topics (typically because we know more details about the area).

So we end up with a list with items that can be visualized as follows:

It’s got overlapping items, it’s messy and therefore unclear

MECE on the other hand forces us to come up with clearer items, that can be visualized as follows:

The items fit snuggly, they are clear and complementary.

MECE is a mindset-tool from the McKinsey toolbox and is really powerful, as it will make presenting subjects much more digestible to your audience; you will have a clear story to tell, covering the subject area precisely and without ugly overlaps. In turn, you audience will therefor better understand what you are bringing.

3 responses to “MECE lists”

  1. […] already covered the MECE list, the 5 Whys, and the PESTEL analysis.  Another great tool for getting to decisions in an organized […]

  2. […] of items, bundle them into categories. Finally, look at the list of categories and apply the MECE approach to make sure that you’ve sufficiently covered all the categories. It works great with a team […]

  3. […] as mutually exclusive as possible and as complementary as possible (you guessed it, you can use the MECE approach for that […]

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About Me

As an experienced enterprise architect with a deep-rooted passion for cloud, AI, and architectural design, I’ve guided numerous companies through the management of their existing application landscapes and facilitated their transition to a future state.