This report provides a comprehensive analysis of Telstra's strategic information systems, focusing on the telecommunications company's organizational structure, operational challenges, and system acquisition methods. It examines the role of ERP systems, custom and commercial software, and the system flowchart for sales procedures. The report also addresses control issues within Telstra, particularly in the context of accounting software and fraud prevention. Furthermore, it explores the development and adoption of accounting software packages, the current market size, and the competitive landscape. The analysis covers the benefits of accounting software, its impact on financial management, and the company's strategies for maintaining a competitive edge in the market. The report provides a detailed overview of Telstra's strategic approach to information systems and its impact on business operations and performance.