What are the two basic developmental approaches employed in Evolutionary acquisition?

The correct answer highlights the two fundamental approaches used in Evolutionary Acquisition, which are Incremental Development and Spiral Development.

Incremental Development is characterized by breaking down the overall system into smaller, manageable increments or releases. This allows for the gradual addition of functionalities or enhancements to a product over time, enabling the acquisition process to respond to changing needs and incorporate feedback from users. This approach significantly reduces risks associated with development by allowing for adjustments along the way, ensuring that each increment aligns more closely with user requirements.

Spiral Development, on the other hand, combines iterative development with the systematic risk management inherent in each cycle of development. It involves repeating cycles (or spirals) of prototyping, evaluating, and refining the product until it meets the operational needs. This approach inherently supports continuous user engagement and prioritizes risk assessment and reduction at every stage, fostering a more adaptable and responsive acquisition strategy.

Together, these approaches facilitate more effective and efficient development processes in military acquisition, addressing risks and uncertainties while promoting innovation and responsiveness to user needs.