Final answer:
An IT-based system allows for electronic performance of work, with controls written into the computer program for security. Internal control is still important in an IT-based system, and segregation of duties remains necessary.
Step-by-step explanation:
In an IT-based system, work normally divided among many employees can be performed electronically. This allows for tasks to be automated and completed more efficiently. Controls in an IT-based system are written into the computer program, providing a level of security and accuracy in the system. However, the importance of internal control is not diminished in an IT-based system, as there still needs to be measures in place to ensure data integrity and protect against unauthorized access or misuse.
Segregation of duties is still an important concept in an IT-based system. While certain tasks may be automated, it is still necessary to have different individuals responsible for different aspects of the system to prevent fraud or errors. For example, one person may have access to enter data into the system, while another person is responsible for reviewing and approving that data.