A Product Manager holds overall responsibility for conceiving, researching and developing new merchandise, software and other goods aimed at increasing a company’s profits and market presence. They are typically thought of as the intersection between technology, business and user experience; creating strategies, determining the value and defining the purpose of a product.
Product Managers evaluate market trends, identify intended demographics and monitor competition. Considering factors such as the company’s business model and consumer opinion, the Product Manager determines what features are needed to ensure that the final product meets the needs of the end-user.
Once they have created a blueprint and strategy, the Product Manager must communicate their product vision and value to everyone from executives and senior management to the development and marketing teams. They ensure cohesion across all aspects of product strategy and execution, from research and engineering to sales and marketing.
Source: http://joboutlook.gov.au/