Which component is essential for the effective management of BA information after a project change?

The essential component for the effective management of business analysis (BA) information after a project change is the information management approach. This approach encompasses the strategies and processes used to collect, analyze, store, and disseminate information throughout the lifecycle of a project.

When a project undergoes changes, it's critical to ensure that all relevant information is updated, accurately reflected, and communicated to stakeholders. An effective information management approach provides a structured way to handle this information, allowing for proper tracking of changes, maintaining the integrity of the data, and ensuring that everyone involved has access to the latest insights and documentation. This leads to better decision-making and facilitates the alignment of all project participants with the revised project scope and objectives.

In contrast, while marketing strategy, human resources plans, and supply chain management can play important roles in different aspects of a project, they do not specifically address the comprehensive management and flow of information that is crucial after project changes occur.