Explanation
According to the ASCM CTSC Exam Content Manual, the formula for raw material inventory days of supply is the value of raw materials inventory divided by the "value of transfers divided by 365 days" 1. The value of transfers is the same as the cost of goods sold, which is the total cost of producing and delivering the prod-ucts to the customers 2. Therefore, the formula can be simplified as the value of raw materials divided by the cost of goods sold per day, which is the same as option A. The other options are incorrect because they either use the wrong numerator or denominator, or invert the ratio.
1:12:2

Explanation
voice of the customer (VOC) is the process of gathering and implementing information about your customers' expectations, needs and hopes2.Businesses use VOC programs to efficiently collect detailed market research about their customers and to improve their products or services based on the customer feedback2. This is an example of the successful use of VOC, as the company distributed surveys to understand what customers wanted, added online status information capability to their website to meet the customer demand, and sent a customer satisfaction survey to measure the impact of the improvement. This addition helped increase their customer base and repeat business, which shows the value of listening to the voice of the customer.
1:Voice of the Customer: Definition, Benefits and How-To Guide | Indeed.com2:What is the Voice of the Customer (VoC)? - Qualtrics

Explanation
According to the CTSC exam content manual1, the last phase of the transformation project is to analyze performance, which involves measuring and evaluating the outcomes of the transformation, identifying gaps and opportunities for improvement, and communicating the results and lessons learned to stakeholders.

Explanation
a digital twin is a virtual representation of a real-world object or system. These virtual models are used to digitally represent performance, identify inefficiencies, and design solutions to improve their physical counterparts. A digital twin is a digital model designed to accurately reflect a physical object. The object being studied-for example, a wind turbine-is outfitted with various sensors related to vital areas of functionality.
These sensors produce data about different aspects of the physical object's performance, such as energy output, temperature, weather conditions and more. This data is then relayed to a processing system and applied to the digital copy. Once informed with such data, the virtual model can be used to run simulations, study performance issues and generate possible improvements, all with the goal of generating valuable insights-which can then be applied back to the original physical object. A digital twin is a digital representation of a real-world entity or system. The implementation of a digital twin is an encapsulated software object or model that mirrors a unique physical object, process, organization, person or other abstraction.