Final answer:
Dianna is likely to notice a difference in the emphasis on cost-effectiveness and efficiency when using optimum value engineering in the building process.
Step-by-step explanation:
One difference that Dianna is likely to notice when using optimum value engineering in the building process is the emphasis on cost-effectiveness and efficiency. Optimum value engineering aims to minimize costs while maximizing the value and performance of the building. This may involve using alternative materials or construction methods that offer equivalent functionality but at a lower cost. For example, using prefabricated components instead of traditional on-site construction methods can result in faster and more cost-effective construction.