The caveat about different treatment for titles is a style issue.
However, there are rules normally applicable to insertion of commas between adjacent adjectives, as this English Plus article [tidied and slightly modified] explains:
Commas with Paired Adjectives
If two adjectives modify a noun in the same way, place a comma between
the two adjectives. These are called coordinate adjectives.
[The condition 'in the same way' is very loosely defined in this
article, but in-depth analyses of semantic types become very involved
and controversial. But:]There is a two-part test for coordinate
(1) Can you replace the comma with the word and?
(2) Can you reverse the order of the adjectives and keep the same
If you can do both, then you have coordinate adjectives.
Correct: Did you read about Macomber's short, happy life?
Tests for Correctness: Did you read about Macomber's short and happy
life? [this rewrite is fine]
Did you read about Macomber's happy, short life? [sounds just about OK
All three sentences say the same thing, so the adjectives are
coordinate adjectives and separated by commas in the original.
If the paired adjectives fail the two-part test, then no comma is
used. This shows that they must remain in a certain order to make
sense. These are called cumulative adjectives.
Incorrect: The overweight, former president told us how he lost
Tests for Correctness: The overweight and former president... (
The former, overweight president... (unacceptable)
Clearly, no comma is needed for these cumulative adjectives.
Correct: The overweight former president told us how he lost fifty-five
pounds. [This example chooses widely 'different' adjectives. The little brown dog
has far less disparate adjectives and still fails the tests.]
Here, I haven't the subject-specific vocabulary to apply these tests to the pair capacitated and hierarchical, and it would probably sound outlandish as a rewrite (but then it does as it stands, to my ears). If pushed, like you I'd say that inclusion of the comma is indicated. Perhaps a longer title would paradoxically sound more acceptable.