Scope (products) of a project is the sum total of all projects products and their features.
Sometimes scope is used to mean the totality of work needed to complete a project.
In traditional project management , the the tools to describe a project's scope (product) are the product breakdown structure and product descriptions. The primary tool to describe a project's scope (work) is the work breakdown structure.
Extreme project management advocates the use of user stories , feature lists and feature cards to describe a project's scope (product).
If there is no effective change control in a project, scope creep may ensue.