A taxonomy of service identification approaches for legacy software systems modernization

2021 ◽  
Vol 173 ◽  
pp. 110868
Author(s):  
Manel Abdellatif ◽  
Anas Shatnawi ◽  
Hafedh Mili ◽  
Naouel Moha ◽  
Ghizlane El Boussaidi ◽  
...  
Keyword(s):  
Software Systems ◽  
Legacy Software ◽  
Service Identification

Web Service Candidate Identification Using the Firefly Algorithm

2018 ◽  
Vol 15 (4) ◽  
pp. 45-60
Author(s):  
Negar Abbasi ◽  
Ali Moeini ◽  
Taghi Javdani Gandomani
Keyword(s):  
Web Service ◽  
Firefly Algorithm ◽  
Service Oriented Architecture ◽  
High Reliability ◽  
Legacy Software ◽  
Service Identification ◽  
Service Oriented ◽  
Automatic Methods ◽  
Reservation System ◽  
Candidate Identification

Identification of web service candidates in legacy software is a crucial process in the reengineering of legacy systems to service oriented architecture. Researchers have proposed various automatic and semi-automatic methods for this purpose, some of which have proved to be quite efficient, but there are still certain gaps which need to be addressed. This article discovers the strengths and weaknesses of previous methods and develops a method with improved service candidate identification performance. In this article, service identification is considered as a search and optimization problem and a firefly algorithm is developed accordingly to give high-quality solutions in reasonably short times. A filtering method is also developed to remove excess modules (false positives) from the algorithm outputs. A case study on a legacy flight reservation system demonstrates the high reliability of the outputs given by the proposed method.

Evolving Legacy System Towards E-Business

2011 ◽  
pp. 295-325 ◽  
Author(s):  
Lerina Aversano ◽  
Raffaele Esposito ◽  
Teresa Mallardo ◽  
Maria Tortorella
Keyword(s):  
Information Systems ◽  
Business Process ◽  
Business Processes ◽  
Software Systems ◽  
Legacy System ◽  
Legacy Software ◽  
Measurement Framework ◽  
Technical Issues ◽  
Legacy Applications ◽  
Decision Tables

In e-business, addressing the technical issues alone is not enough to drive the evolution of existing legacy applications, but it is necessary to consider problems concerning the strict relationship that exists between the evolution of the legacy system and the evolution of the e-business process. To fulfill this purpose, this chapter proposes a strategy for extracting the requirements for a legacy system evolution from the requirements of the e-business process evolution. The strategy includes a toolkit composed of a set of decision tables and a measurement framework, both referring to the organization, business processes, and legacy software systems. The decision tables allow the identification of the processes to be evolved, the actions to be performed on them and their activities, and the strategies to be adopted for evolving the information systems. The measurement framework aims at achieving a greater understanding of the processes and related problems, taking into account organizational and technological issues.

Information Systems as Wicked Problems

2000 ◽  
pp. 131-144
Author(s):  
Gill Mallalieu ◽  
Steve Clarke
Keyword(s):  
Risk Assessment ◽  
Assessment Model ◽  
Wicked Problem ◽  
Software Systems ◽  
Legacy Software ◽  
It Systems ◽  
Strategic Model ◽  
Detailed Method ◽  
Medium Enterprises ◽  
The Relationship

The idea of the ‘wicked problem’ (Churchman, 1967), which advocates a pragmatic oscillation between problem and solution, rather than an attempt to reduce the problem to a series of steps to be followed sequentially, has been particularly helpful to us in conceptualising the relationships between people, organisations and information technology (IT). This conceptualisation was tested in the RAMESES project (Risk Assessment Model: Evaluation Strategy for Existing Systems), using grounded theory (Strauss and Corbin, 1997) as the basis for the methodology. The overall objective of RAMESES is ‘to provide a strategic model for the risk assessment of legacy software systems within SMEs (small-to-medium enterprises) considering business process change.’ Thus the relationship between the organisation, the way its staff carried out its processes, and their legacy IT systems was at the centre of our concerns. This chapter describes how the broad conceptualisation of the problem led to a detailed method to address it and the results available to date.

An Effortless Approach for Migrating from Legacy Software Systems to Web Services

2012 ◽  
pp. 219-225
Author(s):  
K. Velmurugan ◽  
M.A. Maluk Mohamed
Keyword(s):  
Web Services ◽  
Reverse Engineering ◽  
Software Metrics ◽  
Software Systems ◽  
Legacy Systems ◽  
Legacy Software ◽  
Internet Infrastructure ◽  
Business Applications ◽  
Simple Implementation ◽  
Business To Business

One of the vital reasons for reverse engineering legacy software systems is to make it inter-operable. Moreover, technological advancements and changes in usability also motivate reverse engineering to exploit new features and incorporate them in legacy software systems. In this context, Web services are emerging and evolving as solutions for software systems for business applications in terms of facilitating interactions between business to business and business to customers. Web services are gaining significance due to inherent features like interoperability, simple implementation, and exploiting the boom in Internet infrastructure. Thus, this work proposes a framework based strategy using .net for effortless migration from legacy software systems to Web services. Further, this work also proposes that software metrics observed during the process of reverse engineering facilitate design of Web services from legacy systems.

scholarly journals GATALSS: A Generic Automated Tool for Analysing the Legacy Software Systems

2016 ◽  
Vol 12 (3) ◽  
pp. 361-365
Author(s):  
Malladi Srinivas ◽  
G. Rama Krishna ◽  
K. Rajasekhara Rao ◽  
E. Suresh Babu
Keyword(s):  
Software Systems ◽  
Legacy Software ◽  
Automated Tool
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