Page 420 - ITGC_Audit Guides

Contents

Executive Summary ................................................................................................................................... 2

Introduction ................................................................................................................................................ 3
Business Significance ........................................................................................................................................................ 3

Practical Applications ....................................................................................................................................................... 4
Big Data Basics ........................................................................................................................................... 6

Structured and Unstructured Data ............................................................................................................................. 6
Data Storage .......................................................................................................................................................................... 7
Three Vs of Big Data .......................................................................................................................................................... 8

Big Data Program Elements ..................................................................................................................... 9

Articulated Business Case ............................................................................................................................................... 9
Defined Roles and Responsibilities ............................................................................................................................. 9
Adequate Resources .........................................................................................................................................................11

Performance Metrics .........................................................................................................................................................11
Tools and Technologies ....................................................................................................................................................11
Ongoing Program Support .............................................................................................................................................14

Data Governance ...............................................................................................................................................................14
Consumer Adoption .......................................................................................................................................................... 15
Analytics and Reporting .................................................................................................................................................. 16

Consistent Processes ....................................................................................................................................................... 17

Key Risks .................................................................................................................................................... 18
Internal Audit’s Role in Big Data ........................................................................................................... 20

Appendix A. Related IIA Standards and Guidance ............................................................................ 22

Appendix B. Glossary ............................................................................................................................... 23

Appendix C. Planning a Big Data Audit Engagement ....................................................................... 27
Acknowledgements ................................................................................................................................. 39

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