Postech Strategic Management of Information Systems LAB


Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Postech Strategic Management of Information Systems LAB

  2. 2. DSS - Introduction <ul><li>Concept </li></ul><ul><li>Phases of decision making </li></ul><ul><ul><li>: : : </li></ul></ul>an interactive, flexible, and adaptable computer-based information system using information and model specially developed for supporting the solution of a semi-structured management problem for improved decision making <ul><ul><li>Intelligence </li></ul></ul><ul><ul><li>Activity </li></ul></ul>Design Activity Choice Activity Review Activity Inventing, developing, and analyzing possible courses of action Searching the environment for conditions calling for a solution Selecting a particular course of action from those available Assessing past choice
  3. 3. DSS framework Operational Control Management Control Strategic Planning Management levels Degree of Problem Structure Account receivable Order Entry Inventory Control Budget analysis- engineered costs Short-term forecasting Tanker fleet mix Warehouse and factory location Production Scheduling Cash Management PERT/COST systems Variance analysis- overall budget Budget preparation Sales and Production Merge and acquisition New product planning R&D planning Structured Semistructured Unstructured
  4. 4. DSS model Individual problem solver Other group members Report writing software Mathematical models Database Groupware Decision support system Information Data Communication Environment Environment
  5. 5. GDSS <ul><li>Concept </li></ul><ul><li>GDSS Environmental settings </li></ul>Smaller Larger Group size Member proximity Face-to-face Dispersed Decision room Legislative session Local area decision network Computer-mediated conference A computer-based system that supports groups of people engaged in a common task and that provides an interface to a shared environment
  6. 6. EIS concept(1/2) <ul><li>Concept </li></ul><ul><li>Capabilities </li></ul>Tracking and control Tailoring to the individual executives decision making style status access, namely rapid access to current information extensive use of data from external source A computerized user-friendly system specially designed to meet the needs of top executives and to eliminate the need for intermediaries
  7. 7. EIS concept(2/2) <ul><li>CSF for achieving successful EIS </li></ul><ul><ul><li>A Committed and Informed Executive sponsor </li></ul></ul><ul><ul><li>An Operating Sponsor </li></ul></ul><ul><ul><li>An Appropriate Information service staff </li></ul></ul><ul><ul><li>An Appropriate Information Technology </li></ul></ul><ul><ul><li>Data management </li></ul></ul><ul><ul><li>Clear Links to Business Objectives </li></ul></ul><ul><ul><li>Management of Organizational Resistance </li></ul></ul><ul><ul><li>Management of the Spread and Evolution of the system </li></ul></ul>
  8. 8. EIS development framework EIS DEVELOPMENT Executive Requirement EIS product <ul><li>Development methodology(CSF) </li></ul><ul><li>Standard(naming convention) </li></ul><ul><li>External & Internal Pressure </li></ul><ul><li>Spread </li></ul><ul><li>EIS capabilities </li></ul><ul><li>Development skills </li></ul><ul><li>Cost/time </li></ul><ul><li>Software(EIS generator, DBMS) </li></ul><ul><li>Hardware </li></ul><ul><li>Personnel </li></ul><ul><li>Internal & External Data </li></ul><ul><li>MIS environment(system config.) </li></ul>
  9. 9. EIS development process I. Preliminary Study II. Application Study III. Prototype Construction IV. System Design V. Final System Construction VI. Testing VII. Installation General Info. for EIS Design info. For Prototype Prototype Implementation Plan Full-systems Improved systems STAGE DELIVERABLE Needs for EIS development VIII. Extension Plan for extension
  10. 10. Definition - DW <ul><li>A data warehouse is a </li></ul><ul><li>collection of data in support of management’s decisions. </li></ul>operational data warehouse load access insert delete insert change access delete change Integrated Non-volatile Time variant
  11. 11. Data warehouse architecture
  12. 12. Technical architecture for a data warehousing system Data Acquisition Component Design Component Data Manager Component Information Directory Component Data Delivery Component Middleware Component Data Access Component warehouse data warehouse metadata external data external metadata source data Management Component
  13. 13. Definition of OLAP <ul><li>Fast Analysis of Shared Multidimensional Information (FASMI) - This definition was first used in early 1995, and has not needed revision since. </li></ul><ul><li>FAST </li></ul><ul><li>ANALYSIS </li></ul><ul><li>SHARED </li></ul><ul><li>MULTIDIMENSIONAL </li></ul><ul><li>INFORMATION </li></ul>
  14. 14. OLAP architecture
  15. 15. OLTP vs. OLAP