RoseBud is a local company that supplies fresh roses from Cameroon Highland to the florists The owner of the business keeps the sales information using a system. The system is able to give the details of the sales and also produce a report to help the owner to find out which area has high sales and also the particular item that has a high demand. 

a. Explain the definition of IS practice by RoseBud. 

b. Give an example of data, information, process, and knowledge based on the scenario given above.