Which of the following are major components of a DSS?

• A. Data management; Model management; Dialog management; All of the above
• B. Data management; Data storage; User interface; All of the above
• C. Model management; Data modeling; Reporting; All of the above
• D. Dialog management; Data governance; Connectivity; All of the above

Answer: (A)

The main idea is that a Decision Support System is built around three core areas: data management, model management, and dialog management. Data management handles how data is stored, organized, and accessed to support decision making. Model management provides the analytical models and tools that allow you to analyze data, run scenarios, and generate insights. Dialog management is the user interface layer that enables users to interact with the data and models—asking questions, setting up analyses, and viewing results. When you have these three together, you cover the data, the analytical logic, and the way the user interacts with the system, which are the essential pieces of a DSS. The option that includes these three components and then says “All of the above” matches this structure, making it the best choice. Other options mix in elements like data storage, reporting, governance, or connectivity, which are related but not regarded as the three primary components on their own.