Imagine you are developing an online sales channel for a traditional brick and mortar store.

Imagine you are developing an online sales channel for a traditional brick and mortar store. Identify what type of controls (Detective, Preventive or Corrective) are needed to ensure that sales revenue is faithfully represented in a real-time system. Use specific examples to explain your recommendations to the store manager. 

this is a question about ACCT90030 Information Processes and Control

pls give me a answer including some examples and article reference.