Data systems for planning are often called

The correct answer is: D. All of the above

Data systems for planning are often called decision analysis systems, planning analysis systems, and decision support systems.

• Decision analysis systems are used to help decision-makers make better decisions by providing them with information about the possible outcomes of different courses of action.
• Planning analysis systems are used to help decision-makers develop and evaluate plans.
• Decision support systems are used to help decision-makers make better decisions by providing them with information and tools to analyze data and evaluate alternatives.

All of these systems can be used to support planning, and they often overlap in their functionality. The specific system that is most appropriate for a particular planning project will depend on the nature of the project and the needs of the decision-makers.

Here are some additional details about each type of system:

• Decision analysis systems are typically used to help decision-makers make decisions under uncertainty. They do this by providing decision-makers with information about the possible outcomes of different courses of action, as well as the likelihood of each outcome occurring. This information can help decision-makers to weigh the risks and benefits of different options and to make more informed decisions.
• Planning analysis systems are typically used to help decision-makers develop and evaluate plans. They do this by providing decision-makers with information about the resources that are available, the constraints that need to be considered, and the goals that need to be achieved. This information can help decision-makers to develop plans that are more likely to be successful.
• Decision support systems are typically used to help decision-makers make better decisions by providing them with information and tools to analyze data and evaluate alternatives. They do this by providing decision-makers with access to data, as well as tools for analyzing and visualizing data. This information and these tools can help decision-makers to make more informed decisions.