Which of the following is a key principle of Agile project management?

The principle of delivering something of value at the end of each sprint aligns perfectly with the core tenets of Agile project management. Agile methodology operates on iterative development, where projects are broken down into smaller, manageable units of work called sprints, typically lasting a few weeks. At the conclusion of each sprint, the team aims to deliver a functional product increment, showcasing tangible value to stakeholders. This delivery process encourages continual feedback from users or stakeholders, allowing for adjustments and enhancements based on user needs before moving on to the next iteration.

This approach dramatically contrasts with the other options. Emphasizing predictability and rigid scheduling can hinder the flexibility and adaptability which are essential in Agile approaches. Extensive upfront planning, while beneficial in some methodologies, doesn't fit with Agile's iterative nature, where planning and execution evolve concurrently as work progresses. Lastly, an emphasis on individual tasks undermines the collaborative spirit that Agile promotes, where teamwork and continuous communication are prioritized to enhance project outcomes and foster innovation.