This study examines the critical role of strategic information systems in business organizations, focusing on Hume Bank, an Australian retail bank. It analyzes the current organizational structure, operational problems, and the potential benefits of implementing an Enterprise Resource Planning (ERP) system. The study also explores the development and adoption of accounting software packages, including the market size, competitive landscape, and challenges associated with their implementation. The paper concludes by recommending the adoption of SAP accounting software to enhance Hume Bank's efficiency, productivity, and competitive advantage.