管理信息系统(第7版)PPT+试题库Ch10-disc.pdf

Chapter 10 Answers to Discussion Questions:1.MIS are used for structured decisions with reports based on routine flows of data.DSS are used for semi-structured or unstructured decisions and focus on specific decisions or classes of decisions.DSS are better for executive decision making because executives questions and problems are unstructured and rely on external environmental information as well as internal data.2.ESS must be flexible and easy to use because executives dont have a lot of time or inclination to learn complex,difficult systems.The system must be as fluid as the information that is gathered.The system must allow executives to scout out problems and new opportunities,and to keep an eye on the competition.Rigid,difficult systems may not allow that to happen.3.Structured knowledge systems were the first attempts at collecting enterprise-wide knowledge from text documents and reports.Semistructured knowledge systems piggybacked off the earlier systems by gathering knowledge from non-traditional communications such as email,chatrooms,voice mail,and instant messaging.Semistructured knowledge systems are sometimes called digital asset management system and incorporate a wider range of information than is available in structured knowledge systems.4.Expert systems require people to input all decision-making rules into the rule base.A knowledge engineer pulls information from various sources and fits it into the expert system.A neural network builds upon a base of information and continually learns by itself.Very little human intervention is required for the neural networks knowledge base to grow.5.Intelligent agents can be used as shopping agents on the Internet.They can also be used to ferret out information in less time than it would take a person to find the information.