The document discusses various options for implementing an Enterprise Resource Planning (ERP) system. It describes building an internal custom ERP system, purchasing a tailor-made commercial ERP package and customizing it, or hiring an external vendor to build a custom system. The key options are analyzed in terms of their advantages, challenges, and critical success factors. Implementing a commercial ERP package requires selecting the right product and partner while ensuring a good fit through gap analysis and customization. A custom-built system allows for a precise fit but has risks of delays and lack of testing. Proper planning and change management are essential to the success of any ERP implementation.