The Renaissance of Legacy Systems: Method Support for Software-System Evolution - Couverture souple

Warren, Ian

 
9781852330606: The Renaissance of Legacy Systems: Method Support for Software-System Evolution
Couverture souple
ISBN 10 : 1852330600 ISBN 13 : 9781852330606
Editeur : Springer London, 1999

Synopsis

Today, software professionals recognize that change in software systems is inevitable. There are many systems currently in operation, however, which were developed before the need for change was understood. Such systems are commonly referred to as "legacy systems", and were developed with relatively short lifetimes in mind. Software engineering is a relatively young discipline which is continually improving to provide better support for the development of software systems. What were once state-of-the-art techniques, tools, and processes are now dated, and have resulted in systems which are not responsive to change. For historical reasons, dated development practice traded maintainability for other system attributes, such as cost and performance. A significant number of legacy systems remain in operation because they are critical to the business processes which they support. The combination of extended lifetimes and poor maintainability means that legacy systems are expensive to change, and in many cases they cannot accommodate emerging requirements. This is clearly an undesirable situation, which, until recently, has been tackled by replacing the system or attempting to maintain it. Replacing a legacy system is dangerous, since you face the risk of losing vital business knowledge which is embedded in many old systems. In many cases, system replacement is not cost-effective. Conversely, if you attempt to maintain a legacy system, there is often little return on the investment in maintenance effort and the system remains difficult and expensive to change.

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Éditeur
Springer London
Date d'édition
1999
Langue
anglais
ISBN 10 
1852330600
ISBN 13 
9781852330606
Reliure
Broché
Nombre de pages
200
Coordonnées du fabricant
non disponible
Personne responsable
CMN Printpool Inh. Mathis Neumann
https://www.also.com/ec/cms5/en_6000/6000/index.jsp

Friedrich-Karl-Str. 9
Hamburg
Allemagne

Autres éditions populaires du même titre

9781447108184: The Renaissance of Legacy Systems: Method Support for Software-System Evolution

Edition présentée

ISBN 10 :  1447108183 ISBN 13 :  9781447108184
Editeur : Springer, 2011
Couverture souple