From secured legacy systems to interoperable services (the careful evolution of the French tax administration to provide new possibilities while ensuring the primary tax recovering objective) Online publication date: Fri, 13-Nov-2020
by Christophe Gaie
International Journal of Computational Systems Engineering (IJCSYSE), Vol. 6, No. 2, 2020
Abstract: The purpose of this paper is to describe the interest of opening legacy systems in large organisations instead of replacing them from scratch. The author also provides a feedback on the different REST solutions available to facilitate their usage by information technology architects. The paper underlines the importance not only to preserve the good functioning of the legacy heritage but also to migrate progressively applications to modernised languages. Assuredly, the code developed is robust and tackles the whole business perimeter whereas new technologies may suffer from a lack of stability or technical expertise within the organisation. This advocates for a progressive migration in the specific context of essential public services. To achieve the migration, the author proposes a hybrid architecture which relies on data exchanges between the legacy and modern parts of the application. Finally, a method is proposed to select an API management solution adjusted to each organisation requirements.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Computational Systems Engineering (IJCSYSE):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com