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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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Table of Contents (7) Chapters Close

Further Analysis


What Else Can Be Done?

The analyses suggested so far have been static and high-level. What follows are a few lower-level analysis areas that may apply to your system. Each of these short sections could justify their own chapters (or even whole books) but I will just give a few pointers for brevity.

If I've missed out anything you consider important, please email and let me know – perhaps you're working on a type of system I've not come across before.

Further Static Analysis

Database Schemas

There will be a data model (object/class model or data structure) within the application code and probably a separate one within a database. It is very common for these to be out of sync or for one to be a subset of the other. The database in question may be a traditional SQL one or something more unusual – currently, NoSQL databases are becoming popular but there is nothing new about changing trends and fashions in databases.

Fortunately, most databases follow a standard (SQL especially...

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