As with every other aspect of short story writing, under ideal circumstances you won't need any rules about plot, and won't need to analyse what you are doing. A story will just arrive in your mind and demand to be written. You won't need to plan it in advance, and as you work you will know how to shape and direct it simply by following your instinct. The whole process will happen of its own accord and you will be too busy writing to think about 'plot' or 'theme' or 'suspense' or anything like that.
The ability to work instinctively, without reference to guidelines, is our aim, but it rarely happens without the writer first having given at least a little analytical thought to what makes a good story work. Similarly the ability to see where a story-in-progress which has got stuck might be going wrong, and how to put it right should become instinctive, but is unlikely to do so without at least a glance at some guidelines.
The guidelines which follow, therefore, are not hard and fast rules, but aids to thought, both for the planning of stories, and for the diagnosis of problems in stories which have gone wrong.
Plot in short stories part 1 – Short Story Writing