MIGRATING LEGACY SYSTEMS TOWARDS MULTI-LAYERED WEB-BASED ARCHITECTURES

2005 ◽  
pp. 233-274
Author(s):  
THIERRY BODHUIN ◽  
GERARDO CANFORA ◽  
ANIELLO CIMITILE ◽  
MARIA TORTORELLA
Keyword(s):  
Legacy Systems ◽  
Web Based

Patterns for Migration of SOA Based Applications to Microservices Architecture

2021 ◽  
Author(s):  
Vinay Raj ◽  
Ravichandra Sadam
Keyword(s):  
Programming Languages ◽  
Service Oriented Architecture ◽  
Legacy Systems ◽  
Loose Coupling ◽  
Enterprise Service Bus ◽  
Web Based ◽  
Enterprise Applications ◽  
Service Oriented ◽  
Key Features ◽  
Microservice Architecture

Service oriented architecture (SOA) has been widely used in the design of enterprise applications over the last two decades. Though SOA has become popular in the integration of multiple applications using the enterprise service bus, there are few challenges related to delivery, deployment, governance, and interoperability of services. To overcome the design and maintenance challenges in SOA, a new architecture of microservices has emerged with loose coupling, independent deployment, and scalability as its key features. With the advent of microservices, software architects have started to migrate legacy systems to microservice architecture. However, many challenges arise during the migration of SOA to microservices, including the decomposition of SOA to microservice, the testing of microservices designed using different programming languages, and the monitoring the microservices. In this paper, we aim to provide patterns for the most recurring problems highlighted in the literature i.e, the decomposition of SOA services, the size of each microservice, and the detection of anomalies in microservices. The suggested patterns are combined with our experience in the migration of SOA-based applications to the microservices architecture, and we have also used these patterns in the migration of other SOA applications. We evaluated these patterns with the help of a standard web-based application.

Conflicts, Compromises, and Political Decisions

2011 ◽  
pp. 71-93
Author(s):  
Kari Smolander ◽  
Matti Rossi
Keyword(s):  
Grounded Theory ◽  
Qualitative Data ◽  
Legacy Systems ◽  
Web Based ◽  
Business Architecture ◽  
Business Units ◽  
Business System ◽  
Customer Interface ◽  
Architecture Development ◽  
Political Decisions

This article describes the architecture development process in an international ICT company, which is building a comprehensive e-business system for its customers. The implementation includes the integration of data and legacy systems from independent business units and the construction of a uniform Web-based customer interface. We followed the early process of architecture analysis and definition over a year. The research focuses on the creation of e-business architecture and observes that instead of guided by a prescribed method, the architecture emerges through somewhat non-deliberate actions obliged by the situation and its constraints, conflicts, compromises, and political decisions. The interview-based qualitative data is analyzed using grounded theory and a coherent story explaining the situation and its forces is extracted. Conclusions are drawn from the observations and possibilities and weaknesses of the support that UML and RUP provide for the process are pointed out.

Conflicts, Compromises, and Political Decisions

2011 ◽  
pp. 60-89
Author(s):  
Kari Smolander ◽  
Matti Rossi
Keyword(s):  
Grounded Theory ◽  
Qualitative Data ◽  
Legacy Systems ◽  
Web Based ◽  
Business Architecture ◽  
Business Units ◽  
Business System ◽  
Customer Interface ◽  
Architecture Development ◽  
Political Decisions

This article describes the architecture development process in an international ICT company, which is building a comprehensive e-business system for its customers. The implementation includes the integration of data and legacy systems from independent business units and the construction of a uniform Web-based customer interface. We followed the early process of architecture analysis and definition over a year. The research focuses on the creation of e-business architecture and observes that instead of guided by a prescribed method, the architecture emerges through somewhat non-deliberate actions obliged by the situation and its constraints, conflicts, compromises, and political decisions. The interview-based qualitative data is analyzed using grounded theory and a coherent story explaining the situation and its forces is extracted. Conclusions are drawn from the observations and possibilities and weaknesses of the support that UML and RUP provide for the process are pointed out.

Conflicts, Compromises, and Political Decisions

2009 ◽  
pp. 1876-1898
Author(s):  
Kari Smolander ◽  
Matti Rossi
Keyword(s):  
Grounded Theory ◽  
Qualitative Data ◽  
Legacy Systems ◽  
Web Based ◽  
Business Architecture ◽  
Business Units ◽  
Business System ◽  
Customer Interface ◽  
Architecture Development ◽  
Political Decisions

This chapter describes the architecture development process in an international ICT company, which is building a comprehensive e-business system for its customers. The implementation includes the integration of data and legacy systems from independent business units and the construction of a uniform Web-based customer interface. We followed the early process of architecture analysis and definition over a year. The research focuses on the creation of e-business architecture and observes that instead of guided by a prescribed method, the architecture emerges through somewhat non-deliberate actions obliged by the situation and its constraints, conflicts, compromises, and political decisions. The interview-based qualitative data is analyzed using grounded theory and a coherent story explaining the situation and its forces is extracted. Conclusions are drawn from the observations and possibilities and weaknesses of the support that UML and RUP provide for the process are pointed out.

Conflicts, Compromises, and Political Decisions

2009 ◽  
pp. 565-588
Author(s):  
Kari Smolander ◽  
Matti Rossi
Keyword(s):  
Grounded Theory ◽  
Qualitative Data ◽  
Legacy Systems ◽  
Web Based ◽  
Business Architecture ◽  
Business Units ◽  
Business System ◽  
Customer Interface ◽  
Architecture Development ◽  
Political Decisions

This article describes the architecture development process in an international ICT company, which is building a comprehensive e-business system for its customers. The implementation includes the integration of data and legacy systems from independent business units and the construction of a uniform Web-based customer interface. We followed the early process of architecture analysis and definition over a year. The research focuses on the creation of e-business architecture and observes that instead of guided by a prescribed method, the architecture emerges through somewhat non-deliberate actions obliged by the situation and its constraints, conflicts, compromises, and political decisions. The interview-based qualitative data is analyzed using grounded theory and a coherent story explaining the situation and its forces is extracted. Conclusions are drawn from the observations and possibilities and weaknesses of the support that UML and RUP provide for the process are pointed out.

scholarly journals Modelling the evolution of legacy systems to Web-based systems

2004 ◽  
Vol 16 (12) ◽  
pp. 5-30 ◽  
Author(s):  
Janet Lavery ◽  
Cornelia Boldyreff ◽  
Bin Ling ◽  
Colin Allison
Keyword(s):  
Legacy Systems ◽  
Web Based

The PBL-Evaluator: a web-based tool for assessment in tutorials

1998 ◽  
Vol 62 (9) ◽  
pp. 671-674
Author(s):  
JF Chaves ◽  
JA Chaves ◽  
MS Lantz
Keyword(s):  
Web Based
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