What type of information system would be used by upper level management?

Upper-level management typically utilizes Executive Information Systems (EIS) or Decision Support Systems (DSS). These systems provide high-level data analysis, reporting, and visualization tools that facilitate strategic decision-making. They aggregate information from various sources, allowing executives to monitor organizational performance, identify trends, and make informed decisions quickly. EIS and DSS are designed to deliver insights in a user-friendly format, often featuring dashboards and key performance indicators (KPIs).