Lean is a manufacturing philosophy that emphasizes waste reduction and continuous improvement. It is not a specific software project management methodology.

The primary goal of software project estimation is to provide a reliable estimate of the resources and time required to complete a software project.

Expert judgment is not a formal software project estimation technique. It involves relying on the opinions of experienced individuals to estimate project parameters.

A project plan defines the scope, objectives, and deliverables of a project, while a project schedule outlines the tasks and activities required to complete the project.

Political risk is not a common project risk. It refers to the risk of changes in government policies or regulations that may affect the project.

The purpose of a project risk register is to identify and document project risks.

End users are not typically considered project stakeholders. They are the individuals who will ultimately use the product or service that is being developed.

The primary purpose of a project communication plan is to define the communication channels and methods to be used during the project.

Flowcharts are not typically used as project management tools. They are used to represent the flow of data or processes.

All of the above statements are true. A project milestone is a significant event in the project timeline, while a project deliverable is a tangible output of the project. A project milestone is typically associated with a specific date, while a project deliverable can be completed over a period of time. A project milestone is typically defined in the project plan, while a project deliverable is defined in the project scope statement.

The purpose of a project closure report is to document the project's achievements and lessons learned, evaluate the project's success or failure, and provide recommendations for future projects.

Lack of resources is not a common software project management challenge. It is a general challenge that can affect any type of project.

The primary purpose of a project risk management plan is to identify and assess project risks, develop strategies to mitigate project risks, and monitor and track project risks.

Flowcharts are not typically used as software project management tools. They are used to represent the flow of data or processes.

All of the above statements are true. A project milestone is a significant event in the project timeline, while a project deliverable is a tangible output of the project. A project milestone is typically associated with a specific date, while a project deliverable can be completed over a period of time. A project milestone is typically defined in the project plan, while a project deliverable is defined in the project scope statement.