This core concept refers to how the business need evolves through the continuous elicitation, confirmation, and communication that happens as a result of business analysis elicitation activities.

Let's look at an example to bring this concept of need into the real world:

If we continue with the example of the merging of the two financial teams' different general ledger software, you will clearly relate to the elicitation of requirements during those workshops as a way of elaborating and clarifying the needs of the finance team stakeholders. Your main role during the elicitation activities is to understand the business needs.

This example clearly illustrates how the core concept of need is implemented during the Elicitation and Collaboration Knowledge Area by actively exploring the changes required through elicitation in order to meet the business need for a single general ledger solution.