As a business analyst, which of the following is an example of an assumption?

An assumption in the context of business analysis refers to a statement or expectation that is taken for granted without proof at the time of planning or requirements gathering. It is typically something believed to be true that can affect project outcomes if proven otherwise.

In this scenario, stating that the solution "will cost less than a specified budget" is an assumption because it reflects a belief about the future financial performance related to the project. It implies reliance on the expectation that costs will remain within financial limits unless evidence suggests otherwise. This type of assumption is crucial for stakeholders as it can impact decision-making and project viability.

The other options represent different project constraints or requirements. For instance, indicating that the solution "must work with existing software" deals with the necessary compatibility within the project's technical framework, whereas "the solution should be completed by a specific date" sets a deadline, and "the solution must satisfy all requirements in the project scope" outlines a performance standard. These do not operate under the same presumption of a future condition that is taken as a given and could change, making them requirements or constraints rather than assumptions.