A "Checkpoint" is a designated location where security personnel or systems monitor and control the movement of people, vehicles, or goods. These areas are often used in military, border control, or event security settings to ensure safety and compliance with regulations. Checkpoints can involve various procedures, including identification checks and vehicle inspections. In the context of software development, a "Checkpoint" refers to a saved state in a program or system. This allows developers to return to a previous point in the code if needed, facilitating easier debugging and version control. Checkpoints are essential in managing changes and ensuring data integrity during the development process.