Chapter 1 Notes

Chapter 1 Notes - 1 Chapter 1 Assuming the Role of the...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 Chapter 1 Assuming the Role of the Systems Analyst Systems Analysis and Design Kendall & Kendall, Seventh Edition 2 Major Topics ¡ Information systems ¡ Phases of analysis and design ¡ System maintenance ¡ CASE tools ¡ Alternate methodologies 2 3 Test Slide A B C D 0% 0% 0% 0% 1. A 2. B 3. C 4. D 4 Information ¡ Information ¡ An organizational resource, which must be managed as carefully as other resources to take full advantage of its potential. ¡ Costs are associated with information processing. ¡ Production ¡ Distribution ¡ Security ¡ Storage ¡ Retrieval 3 5 ¡ Information System ¡ System consisting of humans, technology and procedures to collect, process, transmit, and disseminate data and / or information 6 Categories Categories of Information systems: ¡ Transaction processing systems (TPS). ¡ Office automation systems (OAS). ¡ Knowledge work systems (KWS). ¡ Management information systems (MIS). ¡ Decision support systems (DSS). ¡ Expert systems (ES) and Artificial Intelligence (AI). ¡ Group decision support systems (GDSS) a ¡ Computer-Supported Collaborative Work Systems. ¡ Executive support systems (EES). 4 7 Strategic Level Operational Level Knowledge Level Higher Level A systems analyst may be involved with any or all of these systems at each organization level 8 Types of Information Systems & Systems Development ¡ Operational Level ¡ Transaction Processing Systems (TPS) ¡ Automate handling of data about business activities (transactions) ¡ Supports the day – to- day operations ¡ Knowledge Level ¡ Office Automation System (OAS) ¡ Supports data workers who share information, but do not usually create new knowledge ¡ Examples: Word processing, Spreadsheets, Desktop publishing, Electronic scheduling, Communication through voice mail, Email, Video conferencing ¡ Knowledge Work System (KWS) ¡ Supports professional workers such as scientists, engineers, and doctors ¡ Examples: computer-aided design systems, virtual reality systems, investment workstations 1.8 1.8 5 9 Types of Information Systems & Systems Development ¡ Higher Level ¡ Management Information Systems (MIS) ¡ Converts raw data from transaction processing system into meaningful form ¡ Examples: profit margin by sales region, expenses vs. budgets ¡ Decision Support Systems (DSS) ¡ Designed to help decision makers ¡ Provides interactive environment for decision making ¡ Examples: financial planning with what-if analysis, budgeting with modeling ¡ Expert System (ES) ¡ Captures and uses the knowledge of an expert for solving a particular problem which leads to a conclusion or recommendation ¡ Examples: MYCIN, XCON 1.9 1.9 10 Types of Information Systems & Systems Development ¡ Strategic Level ¡ Executive Support System (ESS) ¡ Helps executives to make unstructured strategic decisions in an informed way ¡ Examples: drill-down analysis, status access ¡ Group Decision Support System (GDSS) ¡ Permit group members to interact with electronic support...
View Full Document

This note was uploaded on 04/18/2008 for the course CSIS 2210 taught by Professor Aakash during the Spring '08 term at Stockton.

Page1 / 39

Chapter 1 Notes - 1 Chapter 1 Assuming the Role of the...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online