Do and Act are not the same thing. Do is carrying out the plan. Act is revising the process so the next plan goes better. While they're both implementation ste

Do and Act are not the same thing. Do is carrying out the plan. Act is revising the process so the next plan goes better. While they're both implementation steps, they exist in different contexts. Same with Plan and Study. One is prospective and other retro/introspective, the former in regards to product, the latter with regard to process.