This report discusses the role of IT solutions, systems, and infrastructure in information systems and big data analysis. It describes theories, methods, and techniques related to the design and development of McAfee and MS Office. It also explains decision support systems, executive support systems, transaction processing systems, management information systems, and knowledge management systems. The report also covers the effects of IT on globalization and the advantages and disadvantages of cloud computing as a digital infrastructure. Lastly, it discusses the risks associated with information systems outsourcing and the importance of IT infrastructure in digital transformation.