あるソフトウェア開発会社は、新規サービス開発のためのバリューストリームを構築することで、サービス提供の改善を目指しています。同社は、サービス提供のスピードと品質のバランスを取ることを目指しています。この目標を達成するために、バリューストリームをどのように構築すべきでしょうか？
正解：B
The company should integrate feedback loops and escalation mechanisms in the workflow (B). The ITIL 4 Specialist: Create, Deliver and Support study guide (Section 2.2.2) explains that effective value stream design requires iterative feedback to ensure quality while maintaining speed, and escalation mechanisms to address issues promptly. This approach allows for continuous improvement and adjustment during service creation, balancing the trade-off between rapid delivery and high standards. Option A creates silos, reducing coordination; option C compromises consistency; and option D, while useful, is a testing method rather than a structural solution. The guide stresses that feedback loops, such as user testing or peer reviews, are essential for optimizing value streams.
Reference: ITIL 4 Specialist: Create, Deliver and Support, Section 2.2.2 - Feedback Loops in Value Stream Design.
