The project scope includes the following aspects to be managed:
1. Scope Planning
2. Scope Definition
3. Create WBS
4. Scope Verification
This sort of management includes the processes required to guarantee that the project includes all the work required, and only the work required, to complete the project successfully. It is basically concerned with the defining and controlling of what is or is not included in the project.
The processes, tools, and techniques used to manage product's scope vary by application area and are often defined as part of the project life cycle.
The project's output is a single product but that product may include subsidiary components, each with its own separate but interdependent product scopes. For example, a new computer system would generally include four subsidiary components—hardware, software, training, and implementation.
The important thing to remember is that "Completion of the project scope is measured against the project plan, but completion of the product scope is measured against the product requirements".
We are also well aware of the fact that if project is complex and larger in size, the different team & different components are required to complete simultaneously. There exists trade offs among the competing objects and alternatives are there to meet the needs of stakeholders.