This is not a homework question but arises from self-study with full access to the answers. I'm not looking for the answers, but rather how to arrive at them.
I'm having trouble understanding how to solve a question on completing a PERT chart.
My confusion is as to how I could know which arrow has which label without any info on dependencies. e.g. from milestone C, how could it be decided which of the arrows should be labeled with B and which with C?
Also, shouldn't module testing end after writing the module code?
I'd like to know the thought process of an expert solving this. E.g: "This must be B because such and such is true."
