Final answer:
Business Intelligence analysis utilizes data from internal OLTP systems, and structured and unstructured data from both internal and external sources. This data is crucial for making informed business decisions and can include interviews, focus groups, and content analysis for quantitative insights.
Step-by-step explanation:
Data used in Business Intelligence (BI) analysis can come from a multitude of sources. This includes data from internal OLTP systems which handle day-to-day transaction processing, as well as both structured and unstructured data from inside and outside the company. Unstructured data may include in-depth interviews, focus groups, and analysis of content sources to gather quantitative data. Additionally, external data can come from various reports and statistics, such as the U.S. Department of the Treasury for international flows of capital or agriculture data for farming activities. All these sources are essential for constructing a comprehensive view of the business landscape and informing strategic decisions.