Explaining the Difference Between Prompt and Filter in Cognos

In Cognos, prompts and filters are commonly used to refine data displayed in reports. The main difference between a prompt and a filter is:

Prompt:

A prompt is a user interface element that allows users to enter input values or select from predefined values before running a report. Prompts dynamically adjust the data presented in the report based on user input. They are interactive and provide users with control over what data they want to see.

Filter:

A filter, on the other hand, is a predefined condition that restricts the data displayed in a report. Filters are applied directly to the report to limit the data based on specified criteria. They do not require user input at runtime and are static conditions set by the report author.

When to Use Each One:

Use a prompt when you want users to have the flexibility to choose different values and see how the data changes based on their selections. Prompts are ideal for interactive reporting where users need to customize the data displayed.

Use a filter when you want to specify specific criteria to restrict the data shown in the report. Filters are useful for setting consistent conditions across multiple reports or when you want to automate data restriction based on predefined rules.

By understanding the difference between prompts and filters in Cognos, you can effectively utilize them to enhance the reporting experience and provide users with relevant data insights.