MIS Chapter 2

Extranets:

Company Web sites accessible only to authorized vendors and suppliers Facilitate collaboration

DSS

Decision support system

Four major types of enterprise applications:

Enterprise systems Supply chain management systems Customer relationship management systems Knowledge management systems

ESS

Executive support system

Intranets:

Internal networks based on Internet standards Often are private access area in company's Web site

Transaction processing systems (TPS)

Keep track of basic activities and transactions of organization

MIS

Management information systems (MIS)

Systems for business intelligence

Management information systems (MIS) Decision Support Systems (DSS) Executive support systems (ESS)

Four basic business functions to organizing a business

Manufacturing and production Sales and marketing Finance and accounting Human resources

Management information systems:

Provide middle managers with reports on firm's performance, to help monitor firm and predict future performance. Summarize and report on basic operations using data from TPS. Provide weekly, monthly, annual results, but may enable drilling down into daily or hourly data. Typically not very flexible systems with little analytic capability.

Decision support systems (DSS):

Serve middle managers. Support nonroutine decision making Often use external information as well from TPS and MIS Model Driven and Data Driven

Transaction processing systems (TPS)

Serve operational managers. Principal purpose is to answer routine questions and to track the flow of transactions through the organization. E.g., inventory questions, granting credit to customer Monitor status of internal operations and firm's relationship with external environment. Major producers of information for other systems. Highly central to business operations and functioning.

Executive support systems (ESS):

Serve senior managers. Address strategic issues and long-term trends. Address nonroutine decision making. Provide generalized computing capacity that can be applied to changing array of problems. Draw summarized information from MIS, DSS, and data from external events. Typically use portal with Web interface, or digital dashboard, to present content

Five Basic Business Entities

Suppliers Customers Employees Invoices/payments Products and services