Evaluate the value of a data flow diagram and the system flowchart, making a determination as to which is the most effective in identifying what person or department is responsible for a particular task. Justify your answer.
Compare two legacy systems to modern databases and assess how the improvements impact data integrity. Provide examples of audit issues that were inherent in those legacy systems.
Data Coding:
Evaluate the advantages and disadvantages of sequential, block, group, alphabetic, and mnemonic codes, indicating which one you recommend for implementation in an organization. Explain your answer.
Assess the value to organizational management related to common uses of data codes in computer information systems. Identify the auditing issues and the associated risks if the general ledger does not have coding schemes to ensure data integrity.