Explanation
Objectives are developed by teams and rolled up to the ART level during PI Planning. Objectives are a summary of the business and technical goals that the teams and the ART intend to achieve in the upcoming Program Increment (PI)1. During PI Planning, each team creates their own team PI objectives, which are then presented and reviewed by the ART and the stakeholders2. The aggregated team PI objectives form the ART PI objectives, which provide a common vision and alignment for the ART3.
References:
*PI Objectives - Scaled Agile Framework
*PI Planning - Scaled Agile Framework