Final answer:
Adaptive Design is the program design approach that modifies acute variables regularly to meet different objectives, distinct from Incremental Design which often follows a more linear progression.
Step-by-step explanation:
The program design approach that changes acute variables to achieve different goals on a daily or weekly basis is known as Adaptive Design. Unlike Incremental Design, which enhances or modifies an existing product or process often in a sequential manner, Adaptive Design adjusts to various conditions and feedback in real-time or short cycles. During the design process, this can involve rapidly changing the approach based on the latest data, which allows for continued optimization and improvement of the product or process.
In an Engineering Design context, iterations and adjustments are common. Sometimes a spiral design process is utilized, which is characterized by continually looping back to refine the design after testing and evaluation. This ensures that the final outcome is more effective or better suited to the intended application than the original concept.