AI モデルがビジネス目標を満たしているかどうかを評価する際に最も重要な主要業績評価指標 (KPI) は次のどれですか。
正解:D
The primary goal of any AI system is to provide predictions or classifications that support business decisions. The AAIA™ Study Guide highlights that model accuracy-especially when validated against actual outcomes-is the most reliable indicator of whether the AI supports organizational goals effectively. "Accuracy, precision, and recall are foundational metrics that indicate whether a model is performing in line with its intended objectives. High user engagement or retraining frequency does not confirm effective decision support unless the outputs are correct." Cost and user numbers offer useful operational insights but do not reflect the alignment of AI performance with strategic goals. Thus, D is the most meaningful KPI in this context. Reference: ISACA Advanced in AI Audit™ (AAIA™) Study Guide, Section: "AI Operations and Performance," Subsection: "AI Metrics and Business Alignment"