Which of the following systems delivers information to senior executives through a portal with a Web interface?

The correct answer is that executive support systems deliver information to senior executives through a portal with a web interface. Executive support systems (ESS) are specifically designed to provide top-level management with easy access to internal and external information relevant to their strategic decision-making processes. These systems often aggregate data from various sources and present it in a user-friendly manner, typically through dashboards and reports that can be accessed online.

ESS is tailored to meet the needs of executives by focusing on reporting and data visualization rather than on transactional processing or operational management. This allows executives to monitor organizational performance, analyze trends, and make informed decisions swiftly without needing to delve into the operational details, which are generally handled by lower-level systems.

In contrast, the other types of systems serve different purposes: transaction processing systems handle day-to-day transactions; management information systems primarily assist in tactical management and reporting, and decision support systems are designed to help in complex decision-making scenarios by analyzing data and presenting actionable insights. While management information systems and decision support systems may also utilize web interfaces, it is the executive support systems that are specifically designed for delivering high-level information directly to senior executives, thereby distinguishing them in this context.