This assignment discusses the importance of effective Information Systems (IS) and Information Technology (IT) systems for TESCO, a retail company. It highlights the role of the IT department in maintaining customer data and information, as well as the implementation of government processes and policies. The report also examines how TESCO addresses and mitigates risk through its strategies. Additionally, it explores the impact of change on internal and external factors within 2-3 years, resulting in improvements to IS strategy and IT systems.