CHAPTER Information Systems computing ESSENTIALS

2 Competencies Organizational structure Information flow Support systems Office automation Knowledge work systems computing ESSENTIALS

3 Functions Within Organizations All organizations have basic functions Accounting Marketing Human resources Production Research and development computing ESSENTIALS

4 Management Levels People who plan, lead, organize within the organization Supervisors Oversee operational matters Middle management Implements long term goals Top management Strategic planning computing ESSENTIALS

5 Information Flow Based on needs of management Top level management Middle management Supervisors Based on needs of organization computing ESSENTIALS

6 Information Flow: Supervisors Primarily vertical Provide status Reports computing ESSENTIALS

7 Information Flow: Middle Managers Vertical Horizontal computing ESSENTIALS

8 Information Flow: Top Managers Vertical Horizontal External computing ESSENTIALS

9 Computer-Based Information Systems Transaction processing system (TPS) Management information system (MIS) Decision support system (DSS) Executive support system (ESS) computing ESSENTIALS

10 Transaction Processing Systems (TPS) Keep track of routine operations and records An essential TPS is accounting Accounting TPS activities Sales orders Accounts receivable Inventory control –Accounts payable –Payroll –General ledger computing ESSENTIALS

11 Management Information Systems (MIS) Produce standardized reports Periodic Exception Demand Use databases created by TPS Integrate databases across departments computing ESSENTIALS

12 Decision Support Systems (DSS) Flexible tool for dealing with unanticipated questions Analyzes data Reports are not in fixed format Generally easy to use Analytical capabilities come from decision models computing ESSENTIALS

13 DSS Parts User Makes decisions System software Operating system Data Internal from the organization External from the organization Decision models Strategic, tactical, operational computing ESSENTIALS

14 Executive Support Systems (ESS) Designed for top management Easy to use Present information in condensed view Access organization’s databases Access data external to the organization computing ESSENTIALS

15 Other Information Systems Types of information workers Data workers Knowledge workers Office automation systems Support data workers Manage documents, scheduling, etc. Knowledge work systems Support knowledge workers Create information in their area computing ESSENTIALS

16 A Look to the Future Information overload is a major source Some tips: Be selective Remove Protect Be brief Stop spam Don’t respond computing ESSENTIALS

17 computing ESSENTIALS