For example, you can't say "I'm downloading a new computer project" (unless, of course, it is a project).
You can't say. "I'm going to paint the house; that is my program for the next month" No, it's your project, perhaps arguably.
Would you like to mention a few contexts, or write a few sentences that we can comment on? Trying the identify the difference between two different things in an infinitely long task, and rarely as useful as finding out what the things are in themselves.
Interested in Language