This core concept really refers to how a solution satisfies one or more needs within a given context. Specifically, in the knowledge area of Business Analysis Planning and Monitoring, the concept of "solution" is applied in terms of how you evaluate whether the business analysis performance was a key contributor to the successful implementation of a solution.

Let's look at an example to bring this concept of solution into the real world. This could be reflected in tangible cost-saving results due to business analysis performance by uncovering inefficiencies within existing processes or systems. Alternatively, it could be reflected in a less-tangible success result, such as customer satisfaction, with a well-understood user experience requirement due to careful business analysis planning of an appropriate elicitation approach.

This example illustrates how the core concept of "solution" is implemented during the Business Analysis Planning and Monitoring knowledge area with a focus on monitoring the performance of business analysis as it contributes to the initiative's success.