Anyone knows a nice "cheatsheet" architecture diagram that shows all the pentaho EE components (BI server, spoon, metadata editor, etc) and their interactions / roles so that a beginner can start to understand a bit about all this big ecosystem with multiple apps, etc?

Something like this:

but better than this, that shows how the different "projects" interact with each other (for example, project X is used to build the OLAP model and you can also use Y to build that...)

My problem is simple: i'm a newbie to Pentaho and to most DW concepts so, for example, I don't know what all the design tools are for and what do I need to do to ETL and then present my data from 0 to dashboard ready for my "business user".