This article from 2014: -
A stand-alone Process Center profile for IBM® Business Process Manager (BPM) is useful for situations where memory and disk space are limited. Rather than install the Process Center as a network deployment environment with at least three profiles running, plus an additional profile to support the unit test environment server, this article describes how a single profile can provide both a Process Center server and a unit test environment server. This content is part of the IBM Business Process Management Journal.
has been updated with a second article: -
A stand-alone Process Center profile for IBM® Business Process Manager (BPM) is useful in situations where memory and disk space are limited. In Part 1, you learned how to create a stand-alone Process Center Profile for Windows environments, and now in Part 2, learn the specific steps for a Linux environment. Rather than install the Process Center as a network deployment environment with at least three profiles running, plus an additional profile to support the unit test environment server, this series describes how a single profile can provide both a Process Center server and a unit test environment server.
Definitely worth a bookmark