CIS 210 Systems Analysis and Development - PowerPoint PPT Presentation

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CIS 210 Systems Analysis and Development

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Title: PowerPoint Presentation Author: jdonahue Last modified by: James Iha Created Date: 2/27/2003 9:01:38 PM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Title: CIS 210 Systems Analysis and Development


1
CIS 210Systems Analysis and Development
  • Week 9 Part I
  • Maintaining Information Systems

,
2
Objectives
  • Upon completion of part I you will be able to
  • Understand and be able to explain the concepts
    related to the four primary types of maintenance
  • Understand and be able to explain the concepts
    related to the cost of maintaining information
    systems
  • Understand and be able to explain the concepts
    related to the role of CASE when maintaining
    information systems

3
Overview
  • System Maintenance
  • Largest expenditure
  • Begins directly after installation
  • Software changes
  • Hardware changes
  • Changes in procedures
  • How long to maintain?
  • Issues to consider

4
Maintaining Information Systems
  • The Maintenance Process
  • Obtaining requests
  • Transforming requests into changes
  • Designing changes
  • Implementing changes
  • Deliverables and Outcomes
  • New versions of software
  • New versions of documentation

5
Conducting Systems Maintenance
  • Types of Maintenance
  • Corrective
  • Adaptive
  • Perfective
  • Preventive
  • Cost of Maintenance
  • Maintainability
  • Latent defects
  • Number of customers
  • Quality of system documentation
  • Maintenance personnel
  • Tools
  • Well-structured programs

6
Conducting Systems Maintenance
  • Managing Maintenance
  • Managing maintenance personnel
  • Measuring maintenance effectiveness
  • Number of failures
  • Time between failures (MTBF)
  • Type of failure
  • Controlling maintenance requests
  • Configuration management
  • System librarian
  • Baseline modules
  • Build routines

7
Website Maintenance
  • Special Issues
  • Continuous operation
  • Broken links
  • HTML validation
  • Re-Registration
  • Future editions

8
Summary
  • The maintenance process
  • Deliverables and outcomes
  • Types of maintenance
  • Cost of maintenance
  • Managing maintenance
  • Website maintenance
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