Is "Maintain" a type of pipeline stage or a type of pipeline?

[amfred]

I originally had this as a pipeline stage:

Maintain Stage

• Semantics: Automatically update or upgrade previously built software. May invoke some or all of the previous stages.
• Aliases: Update, Upgrade
• Inputs: See Above
• Outputs: See Above
• Other Results and Side Effects: Updated documentation and software built, tested, released and deployed. This stage can also update source code repositories, for example, with new Declared Dependencies or Baseline/Composition Information.

But then m-linner-ericsson correctly pointed out that this is not like the others: #76 (comment)

Does this really belong in a different doc where we have examples of different types of pipelines?

[justinabrahms]

From eBay's perspective, we treat "maintain" as a separate pipeline that runs parallel (or perhaps feeds into?) the normal pipeline.