As an old Zone System practitioner for developing and processing film, I am very aware of the what is necessary and possible in capturing light on film and translating that to a fine print. In digital we have an approach that serves the same effective purpose but is attuned to the physical realities of light sensitive chips. It is called ETTR or Expose to the Right. This is especially important in AP as we are constantly dealing with dynamic ranges of light that are a challenge for sensors to capture. In recent years with the increased dynamic range and lower noise of newer cameras, some have argued that ETTR is obsolete. In this demo Photoshop and Lightroom guru, Jeff Schewe, demonstrates the continued relevance of ETTR.
Also see this earlier article in LuLa.