Process is a series of repeatable steps done in a deliberate order. On the other hand, a project is a single temporary endeavor with multiple steps.
The timeline involved in a project is limited whereas in a process its ongoing with guided completion times.
Processes can be revised and improved for efficiencies in an ongoing manner. However, the project has a specified goal to be achieved which can be evolved.
Projects have their individual uniqueness, whereas process involves has continuous repeats.
Projects drive change and Processes drive optimizations.
Projects involve collaborations whereas processes involve well defined actionable steps and follows guidelines.
Processes are optimized as an exercise to reduce cost, while projects attempt to create change at a lowest cost possible.
A pilot can be a project whereas a prototype cycle can be a process.
After a project it can be decided to repeat the project or not and in a process minor changes maybe required prior to running it again.
A project is Define-Plan-Execute-Close and a process is Build-Measure-Learn-Repeat.