How can an architect ensure that only authorized data for each business partner is accessible across all interfaces?

Providing each business partner their own username and password with a specific role or profile provisioned to the appropriate data is a strong approach to ensuring that only authorized data is accessible across all interfaces. Each business partner having a unique set of credentials allows for better accountability and tracking of access. This is particularly important in a multi-tenant environment where various partners may have different data access needs and compliance requirements.

By utilizing specific roles or profiles, architects can finely control what data each business partner can view or interact with. This means that if a business partner requires access to certain datasets while being restricted from others, the architect can configure permissions accordingly. This granularity in access control helps ensure data security and integrity, minimizes the risk of unauthorized access, and provides a tailored experience that meets individual partner requirements.

Additionally, using unique usernames and passwords promotes better security practices, reducing the risks associated with shared credentials, which can lead to unauthorized access and difficulties in auditing access to sensitive data. Ultimately, this option effectively balances security and accessibility in an integration context, making it the most appropriate choice for managing data access across different business partners.