I am wanting to model a manufacturing system that consists of the equipment qualification lifecycle, the product lifecycle process chain, and the relevant documented procedures for each process within the system. I am applying a top-down approach by decomposing the high-level production processes (planning, manufacturing, testing & inspection, etc.) into their lower-levels and subsequent procedures (around 3/4 layers of abstraction). The aim of modeling this system is purely to convey information as it is for my thesis. I will have to present it to experts so the "easy of understanding" is important.
I've tried modeling this system with IDEF0 which is beneficial as a "black-box" modeling approach for the higher-levels but lacks the decision gates for the lower-levels.
Which Modelio language and plugins would you recommend for modeling the system in questions?