1. Decision-making systems
   1. Transaction processing
      1. Information
         1. Transactional
         2. Analytical
      2. Information processing
         1. Transaction processing systems
            1. Online
            2. Standard processing
            3. Analytical processing
   2. Decision making
      1. Artificial intelligence
      2. Decision support systems
      3. Customer relationship management
      4. Supply chain management
      5. Enterprise resource planning
      6. Data mining
      7. Executive information systems
   3. Support system
      1. Sensitivity analysis
      2. What-if analysis
      3. Goal seeking analysis
2. Enterprise systems
   1. Supply chain management
      1. Strategy
      2. Partners
      3. Operation
      4. Logistics
   2. CRM
      1. Accounting system
      2. order fulfillment system
      3. Inventory system
      4. Customer service system
   3. Business process re-engineering
      1. Organize around outcomes
      2. Identify and prioritize processes
      3. integrate information processes
      4. Treat dispersed resources as centralized
      5. Link parallel activites
      6. Build control into processes
      7. Capture information at the source
   4. Resource planning
      1. Software
      2. Correct solution
      3. Overall fit
      4. Correct business analysis
      5. Solid implementation plans
   5. IT systems
      1. Executives
         1. Consolidation
         2. Drill-down
         3. Slice-and-dice
         4. Digital dashboards
            1. Market pulse
            2. Customer service
            3. Cost driver
         5. Artificial Intelligence
            1. Expert systems
            2. Neural Networks
            3. Fuzzy logic
            4. Genetic Algorithms
            5. Intelligent agents
            6. shopping bot
         6. Intelligent systems
      2. Analysts
      3. Managers