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Working with Legacy Systems

You're reading from   Working with Legacy Systems A practical guide to looking after and maintaining the systems we inherit

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Product type Paperback
Published in Jun 2019
Publisher
ISBN-13 9781838982560
Length 152 pages
Edition 1st Edition
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Author (1):
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Robert Annett Robert Annett
Author Profile Icon Robert Annett
Robert Annett
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Toc

Table of Contents (13) Chapters Close

About the Course
About the Authors
Learning Objectives
Audience
Approach
Acknowledgements and Thanks to:
1. Definition, Issues, and Strategy FREE CHAPTER 2. Investigation and System Review 3. Making Changes 4. A
5. Example Legacy Scenario
6. B
7. Legacy Project Questions

Example Legacy Scenario

A Very Brief Overview

The salient points:

  1. You work for a furniture company
  2. You get a promotion!
  3. You are now responsible for the warehouse inventory system...
  4. No one has touched it for a while
  5. It was written in 2003
  6. It’s a 3-tier architecture
  7. It basically works, although people moan about it.
  8. What do you do?

Why this example?

Most organizations are not primarily focused on technology! One of the reasons I have picked a furniture company is that any IT systems they have will support the main business rather than being the revenue driver. This is true for most IT systems in most organizations – web companies selling online services are not representative.

You have found yourself responsible for this system and discovered that no one has developed (or performed maintenance) programming on this system for a while. However, the system is used and performs an important and core (supporting) function within...

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