A project is defined as following:
1. Has a start and end date, so it is temporary.
2. Creates a unique product or service.
An operation is an ongoing endeavour. Operations and projects differ primarily in that operations are ongoing and repetitive while projects are temporary and unique.
As per PMBOK (PMI), a project can thus be defined in terms of its distinctive characteristics – a project is a temporary endeavor undertaken to create a unique product or service.