Www.monash.edu.au IMS1805 Systems Analysis Topic 1(d): Analysis, Information Systems and Information Technology.

Slides:



Advertisements
Similar presentations
Multimedia Components (Develop & Delivery System)
Advertisements

UWE WLM and WAMS Transferability in Practice?. Key aspects of transferability Capability: ensuring the potential transferability of the model and system.
Objectives Explain the purpose and various phases of the traditional systems development life cycle (SDLC) Explain when to use an adaptive approach to.
IMS1805 Systems Analysis Topic 3: Doing Analysis (continued from previous weeks)
Chapter 1 Section II Fundamentals of Information Systems
Commercial Data Processing Lesson 2: The Data Processing Cycle.
8.
Web-based Distributed Flexible Manufacturing System (FMS) Monitoring and Control Student: Wei Liu Instructor: Dr. Chang Apr. 23, 2003.
IMS1805 Systems Analysis Topic 2: Introduction to some key techniques for systems analysis in IS.
IMS1805 Systems Analysis Topic 3: Doing analysis (cont from Monday)
F29IF2 : Databases & Information Systems Lachlan M. MacKinnon The Domain of Information Systems Databases & Information Systems Lachlan M. MacKinnon.
IMS1805 Systems Analysis Topic 3: Doing Analysis (continued from previous weeks)
Fundamentals of Information Systems, Second Edition
©TheMcGraw-Hill Companies, Inc. Permission required for reproduction or display. COMPSCI 125 Introduction to Computer Science I.
IMS1805 Systems Analysis Topic 1(c): Analysis and Information Systems.
Copyright 2004 Monash University IMS1805 Systems Analysis Week 2(b): Analysis for Information Systems.
IMS1805 Systems Analysis Topic 3: Doing analysis (cont from Monday)
Chapter 9: Moving to Design
Principles of Information Systems, Sixth Edition 1 Systems Investigation and Analysis Chapter 12.
MSIS 110: Introduction to Computers; Instructor: S. Mathiyalakan1 Systems Investigation and Analysis Chapter 12.
IMS1805 Systems Analysis Topic 3: Doing analysis (cont from last week)
IMS1805 Systems Analysis Topic 2: Introduction to some key techniques for systems analysis in IS.
Introduction to Systems Analysis and Design
Data: A collection of raw facts and figures. It may consist of numbers, characters, symbols or pictures. Information: Organized and processed form of.
Computational Thinking Related Efforts. CS Principles – Big Ideas  Computing is a creative human activity that engenders innovation and promotes exploration.
 What’s a Computer? What’s a Computer?  Characteristics of a Computer Characteristics of a Computer  Evolution of Computers Evolution of Computers.
PRESENTATION START.
By Breanna Myers Ms. Williams-Grant 5 th Period Business Computer Applications
Computers: Information Technology in Perspective By Long and Long Copyright 2002 Prentice Hall, Inc. Information Technology in Perspective Introduction.
Introduction to Information System Development.
Chapter 9 Moving to Design Part 2.
Chapter 9 Elements of Systems Design
Moving to Design.
Managing Software Quality
ISNE 101 Dr. Ken Cosh. Welcome to ISNE 101  Dr. Ken Cosh   Facebook – “Ken Cosh”   Don’t be Grengjai!
Chapter 6 System Engineering - Computer-based system - System engineering process - “Business process” engineering - Product engineering (Source: Pressman,
INTRODUCTION TO COMPUTER PROGRAMMING itc-314 LECTURE 01.
WELCOME TO IST 420 Systems and Enterprise Integration Dr. Chao-Hsien Chu 301K IST Building Tel/Fax: / WWW: net1.ist.psu.edu/chu/
Chapter 2: Information Technology and AISs
Knowledge representation
11.10 Human Computer Interface www. ICT-Teacher.com.
1 12 Systems Analysis and Design in a Changing World, 2 nd Edition, Satzinger, Jackson, & Burd Chapter 12 Designing Systems Interfaces, Controls, and Security.
OBJECT ORIENTED SYSTEM ANALYSIS AND DESIGN. COURSE OUTLINE The world of the Information Systems Analyst Approaches to System Development The Analyst as.
Introduction to Computing: Lecture 5
4 - 1 Copyright © 2006, The McGraw-Hill Companies, Inc. All rights reserved. Computer Software Chapter 4.
OS Services And Networking Support Juan Wang Qi Pan Department of Computer Science Southeastern University August 1999.
Principles of Information Systems, Sixth Edition Systems Investigation and Analysis Chapter 12.
9 Systems Analysis and Design in a Changing World, Fourth Edition.
Fundamentals of Information Systems, Second Edition 1 Systems Development.
School of something FACULTY OF OTHER Facing Complexity Using AAC in Human User Interface Design Lisa-Dionne Morris School of Mechanical Engineering
9 Systems Analysis and Design in a Changing World, Fourth Edition.
Components of a Computer System
CSE 102 Introduction to Computer Engineering What is Computer Engineering?
1 © 2007 Chapter 10 Information Technology and Systems Infrastructure Assessment.
CASE (Computer-Aided Software Engineering) Tools Software that is used to support software process activities. Provides software process support by:- –
Department of Industrial Engineering Sharif University of Technology Session # 12.
IT3002 Computer Architecture
Review 1 Chapters Chapter 1 Understanding Computers, 12th Edition 2 Chapter 1 Explain why it is essential to learn about computers today and discuss.
MIS.
361 Hardware, Software, and Computer Performance Lec 2.
Chapter 1: Computer Basics Instructor:. Chapter 1: Computer Basics Learning Objectives: Understand the purpose and elements of information systems Recognize.
Statistical process model Workshop in Ukraine October 2015 Karin Blix Quality coordinator
9. 9 Systems Analysis and Design in a Changing World, Fourth Edition.
9 Systems Analysis and Design in a Changing World, Fifth Edition.
Chapter5 TELECOMMUNICATIONS AND NETWORKS. Content Networking the Enterprise Trends in Telecommunications The Business Value of Telecommunications Networks.
MILESTONES IN HARDWARE
Chapter 3 Hardware and software 1.
Fundamentals of Human Computer Interaction (HCI)
Chapter 3 Hardware and software 1.
Information Technology and AISs
Presentation transcript:

IMS1805 Systems Analysis Topic 1(d): Analysis, Information Systems and Information Technology

2 Recap of last lecture IS is a very broad and loosely-defined field of study – good and bad aspects to this! The analysis of an information system may focus on many different aspects/components of that system Selection of the appropriate basis for analysis is an important first step in analysis SHOULD be driven by the needs of the problem, NOT your personal biases/ preferences!

3 Influences on Information Systems Information Systems Organisation theory (Management) Organisation processes (Business) Systems theory (engineering) Technology theory (Comp Science) Human behaviour (Sociology) Human cognition (Psychology) Information theory (Info Science)

4 Agenda Aim: To examine the influence of information technology on analysis in IS The nature of IT in IS; its elements Influence of IT on IS analysis (Note: dropping down still further to a 500 ft view)

Information technology in IS Technology is an element of any IS Digital technology is a key feature of most IS and of all significant modern organisational IS Note that IT is NOT the ONLY factor; its predominance in analysis is due to its universality, not its inherent importance (should we make you do analysis/development of systems without technology components?)

6 IT as an element of IS Systems integrate technology with other system elements (people, procedures, etc) Digital technology enables us to automate five basic information/data-related tasks: input processing storage output (display) communication Generalist digital technology (computers) cover all five of these tasks; specialist technology may now focus on only one or two

7 Data input capabilities of IT Devices: Keyboard/mouse Scanners (bar code readers, etc) Character recognition devices Voice recognition? ? Capabilities and limitations? Speed Standardisation Validation/checking Flexibility

8 Data storage capabilities of IT Devices: Disks/Tape CD/DVD Files/databases ? Capabilities and limitations? Efficiency Cost Flexibility Copyability Security

9 Data processing capabilities of IT Devices: Processor chips RAM Programming languages/packages ? Capabilities and limitations? Speed/repeatability Reliability Flexibility Usability

10 Data output (display) capabilities of IT Devices: Monitors Printers/plotters Speakers/projectors ? Capabilities and limitations? Efficiency Standardisation Interface Cost

11 Data communication capabilities of IT Devices: Transmission media – cables/microwave/etc Black boxes – modems, routers, hubs, etc Protocols – TCP/IP, HTTP, etc ? Capabilities and limitations? Speed Cost Flexibility Accessibility Security

Influence of IT on analysis in IS Technology as the least sensible element of a system Technology as the hardest element to implement in a system Technology as the least adaptable element of a system Technology as ‘the weakest link’ in a system Need to focus analytical effort on technology- related aspects of systems

13 Evolving role of digital IT on analysis in IS Pre-computing (up to 1950s) Early computing (1950s) Structured analysis (“Birth” of IS?!) (1960s) Relational database (1970s) Personal computing (1980s) Object-oriented computing (1990s) Internet/web-based computing (late 1990s/2000+)

14 Some reasons for changing perspectives/ approaches in IS Analysis Changing technologies (from functional programming to database to O-O programming to web-based IT, etc) Changing types of information problem (from transaction processing to management support to enterprise systems, etc) Changing views of what is important (from efficiency to effectiveness to innovation to adaptability, etc) These things will all continue to change

Summary Digital technology is a key feature of virtually every modern IS Analysis of technological aspects of the system is essential Much of the work of a systems analyst in IS will be driven by technology considerations This DOES NOT mean that other forms of analysis are not equally important or more important in a given system