To optimize Return on Investment (ROI) for Enterprise Resource Planning (ERP) computer systems, otherwise known as accounting systems, consider the following:

1. Define clear goals: Before investing in an ERP system, clearly define your goals and expectations. What do you want the system to achieve? What specific business processes do you want it to streamline? This will help you choose an ERP system that is best suited to your needs and ensure that you are measuring the right metrics to track the ROI.
2. Choose the right ERP system: Invest in an ERP system that is aligned with your goals and business processes. Ensure that the system has the necessary features and functionalities to address your specific needs.
3. Develop a comprehensive implementation plan: A well-thought-out implementation plan is critical to the success of an ERP system. This plan should include milestones, timelines, and resource allocation to ensure that the system is rolled out smoothly and on schedule.
4. Train employees: Training employees on how to use the new ERP system is crucial to its success. Ensure that employees are trained on all the features and functionalities of the system and how to use it to achieve the desired outcomes.
5. Monitor and measure ROI: Once the ERP system is implemented, monitor and measure its impact on your business. Use key performance indicators (KPIs) to track the system's ROI and make adjustments as necessary to ensure that you are achieving your goals.
6. Continuously improve: ERP systems are not a one-time investment. Continuously look for ways to improve the system to ensure that it is delivering the maximum ROI for your business. Solicit feedback from employees and stakeholders, and use this to drive continuous improvement.

By following these steps, you can optimize the ROI for your ERP system and ensure that it is delivering the expected business benefits.