To display a set of data related to a single business object and allow navigation into details, the combination of Report, Record, and Page features in Appian is the most effective approach.

Reports:

Reports allow you to aggregate and visualize data, providing an overview of the business object.

They can include interactive elements that enable users to drill down into specific details.

Records:

Records in Appian represent business objects and provide a centralized view of all related data.

Users can navigate through the data to see different aspects of the business object, including related records and details.

Pages:

Pages in Appian are used to create user interfaces that combine multiple elements, such as Reports and Records, into a cohesive experience.

Pages allow you to organize and present the data in a way that supports user navigation and interaction.

Why Not Other Options?:

A. Sites: Sites are used to create customized user interfaces but do not directly handle data presentation and navigation.

D. Database: The database is where data is stored, but it is not directly used to display or navigate data within the user interface.

References:

Appian Documentation on Records and Reports: Records, Reports

Appian User Interface Design Guide: Pages and Sites

These features together provide a powerful and flexible way to display and interact with business data in Appian.

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