Accounting system

What is metadata, and what is an accounting application of it? Toward Effective Big Data Analysis in Continuous Auditing states, "[T]he revenue amount for a given sale can be easily identified by the continuous auditing system, but it can be challenging to automatically connect this information with the associated sales terms and conditions which are in an unstructured text format." Which 'V' of Big Data causes this difficulty, and how can NoSQL databases overcome this problem? Explain cloud computing. What is segregation of duties, and how is it implemented in a digital environment? BONUS: Define business-led IT