Domain name change “Data Processing” to “Data Analysis”

From Pilot kick off:
Tommi: We should consider changing the name of “Data Processing” to “Data Analysis” as it’s been pointed out that “data processing” is an inaccurate name. The Maturity Model might provide good moment to shift this language
Dylan: The term “data processing” along with the rest of the core functionalities are already in broad use. It might cause confusion and misalignment if it is changed now.

No files or tests are named. Start by reviewing where the maturity model uses “Data Processing” and examine the unresolved discussion between Tommi and Dylan; the work is done only after the terminology decision is settled and the chosen name is applied consistently.

Written by the indexing model from the issue text.