This report provides a comprehensive analysis of data personalisation within business information systems. It begins by defining business information systems and the role of data personalisation, outlining its characteristics and global significance. The report then explores the organisational opportunities and challenges that arise from data personalisation, including data synchronisation, research facilitation, customer targeting, data privacy, virus threats, and the cost of implementation. The report uses A to Z Business Solutions as a case study to illustrate these concepts, examining data personalisation issues for an application, value exchange, trust-building strategies, adherence to regulations, and strategic business approaches. The report concludes with an overview of how business theory is applied to justify choices made in selected business information solutions, providing a well-rounded understanding of the subject.