What is an assumption in business analysis?

< 1 min read

An assumption is a statement taken as true for planning or analysis when complete information isn’t available.
It helps move the project forward despite uncertainty.
In one project, we assumed all customer IDs in the source system were unique.
This guided data modeling and dashboard design.
Assumptions should be documented and validated later.
Incorrect assumptions can lead to errors in analysis or reports.
As a BA, I review assumptions with stakeholders regularly.
Clear assumptions improve transparency and decision-making.

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