Product Owner role is much wider in its scope and comes with a LOT more responsibility including researching market trends to fill GAPS with a new product. A product owner is responsible for a particular product and works to grow it RIGHT from its inception stage to maturity with a vision. A business analyst, on the other hand, would work on parallel lines as a product owner, but, would be limited by the scope of the work.

Usually, a business analyst would be responsible for a particular section of the product and would work towards its requirements or coming up with ideas to IMPROVE or innovate the process pertaining to its scope. Both PO and BA have many similarities in terms of ATTRIBUTES such as strong relationship skills, ability to think outside the box and being clear on the expectations of the work. On the other hand, the Project Manager is the person who must ensure that the scope of a project is delivered against budget and timeframes agreed. This requires the Project Manager to create plans, negotiate budgets, resources, and track progress.