What input is required for the operational Process?

The required input for the operational process is concept documents. These documents are crucial as they define the high-level ideas and performance objectives of the system, guiding the development process. They typically include aspects such as mission needs, stakeholder requirements, and the broad vision for how the system should operate within its intended environment.

Concept documents serve as a foundational reference throughout the lifecycle of the system, influencing everything from design to verification strategies. They ensure that all stakeholders have a common understanding of the operational goals and objectives, enabling more effective communication and alignment among various teams involved in the system's development. This alignment is vital to ensure that the eventual system fulfills its intended purpose and meets user needs. Other inputs, while important at different stages, do not provide the necessary overarching guidance needed for the operational process.