Tools/Artifacts for Business Analysis

Research results (interviews, five whys, system monitoring)
Good usability study overview from Beth Dunbar Copy of Usability Studies Overview
Project charter/problem statements
Workflow Diagrams
Mockups/Wireframes
Data Modeling (find examples of how this was done)
Data Mapping

User stories and use case mapping
Project KPIs (not reporting KPIs, indicators that the project is succeeding or not)
Functional Requirements
Non-functional Requirements
Actionable Tickets