Final answer:
Responsibility accounting is the system designed to evaluate performance based on what a specific individual or department controls, focusing on accountability and segmentation of reporting.
Step-by-step explanation:
The correct option that is designed to evaluate performance by focusing only on what a specific individual or department controls is responsibility accounting. This system enables organizations to track the performance of individual segments or departments, which can easily be held responsible for their actions and results. This form of accounting is very useful for managers because it allows them to assess performance based on the areas and resources that are directly within their control. The other options listed, while useful for various purposes, do not have the same focus. iXBRL (Inline eXtensible Business Reporting Language) is used for financial reporting purposes. The balanced scorecard is a more comprehensive performance management tool that includes financial and non-financial measures. Dashboards are visual representation tools that can provide performance insight but are not necessarily focused on individual responsibility.
In summary, responsibility accounting emphasizes accountability in reporting performance and is tailored to the controlled activities of an individual or a department. It is an essential part of the management control system, allowing the creation of budgeted and actual performance reports that only include revenues and costs directly under the department's influence.