Success factors model: Case studies in the migration of legacy systems to Service Oriented Architecture

Author(s):  
Maulahikmah Galinium ◽  
Negar Shahbaz
Author(s):  
Maulahikmah Galinium ◽  
Negar Shahbaz

In adoption process of Service Oriented Architecture (SOA), the legacy systems of a company can not be neglected. The reason is the legacy systems have been deployed in the past and have been running critical business processes within an enterprise in its current IT architecture. However not all migration process of legacy systems to SOA has been successfull. Highlighting the right factors to reach legacy systems migration success in a specific company is the key value. The main adopted research method in this study has been interviewed for different companies with different enterprises including bank, furniture, engineering and airline companies in Europe. Through separate interviews, critical success factors of migrating legacy systems into SOA have been collected and identified in each case company. Finally collected results are analyzed and presented as the recognized factors affecting successful migration oflegacy assets into SOA from business and technical perspectives.


Author(s):  
Tom Yoon ◽  
Bong-Keun Jeong

Using a multiple case studies and surveys, this article finds that factors essential to successful Service Oriented Architecture (SOA) implementations include establishing effective SOA governance, establishing SOA registries, starting with a small project, collaboration between business and IT units, strengthening trust among business units, and training. This article also explores business and IT motivations for SOA implementation and the benefits realized from this implementation. The findings from this article can provide a guidance for practitioners on the successful implementation of SOA.


Author(s):  
Vinay Raj ◽  
Ravichandra Sadam

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.


Author(s):  
Issam Al Hadid

Airports need to adapt new technologies to react effectively and quickly to customers’ needs and to provide a better service such as the electronic ticket. In addition to the challenges of the ability to respond to the growing requirements of the automatic information interchange between the different systems to ensure safe and efficient airport operations. This paper provides an architecture based on the Service Oriented Architecture (SOA) that improves the information accessibility and sharing across the different Airport’s departments, integrates the existing legacy systems with other applications, and improves and maximizes the system’s reliability, adaptability, robustness, and availability using the Self-Healing Agent.


2015 ◽  
Vol 18 (1) ◽  
Author(s):  
Ilse Grau ◽  
Guilherme H. Travassos ◽  
Luca Cernuzzi ◽  
Adolfo Villafiorita

The development of software not only needs to consider the construction process, but also other aspects such as cost, human resources and communication among stakehold- ers. The lack of simplicity into this context becomes explicit when some restrictions, such as service oriented architecture, must be considered as the basic style to build sus- tainable applications into environments were practitioners are not aware of this software technology. In addition to this, most of the available software processes are not directly applicable nor are they reusable, so learning times becomes risk for the development of the project. Therefore, Tape Mbo’e (TME) has been proposed to support the building of such applications, into development environments like developing countries where we can have economic constraints and scarcity of proficient practitioners. The first application of TME has been to develop a service-based application whose goal is to provide the interoperability among legacy systems of different public agencies in Paraguay. Initial results of this experience indicated the feasibility and simplicity of TME when applied in this field. The evaluation process, its results and conclusions are described in this paper.


2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Sabeen Masood ◽  
Fatima Khalique ◽  
Bushra Bashir Chaudhry ◽  
Abdul Rauf

Cloud computing has emerged as a powerful new technology. The processing and computation power embedded in the cloud technology is not only flexible but also infinitely scalable and cost effective. Service oriented architecture (SOA) is a perfect stage for cloud computing. SOA has allowed customers and organizations to achieve cloud computing and reap its benefits that would not have been possible through any other architecture. This paper discusses the concept and importance of service oriented cloud computing by highlighting possible architectures, their benefits and critical success factors.


Author(s):  
Issam Al Hadid

This chapter introduces the different aviation and airport Information Technology systems. Also, this chapter provides architecture based on the Service Oriented Architecture (SOA) that improves the information accessibility and sharing across the different airport departments, integrating the existing legacy systems with other applications, and improving and maximizing the system’s reliability, adaptability, robustness, and availability using the self-healing agent and virtual Web service connector to guarantee the quality of service (QoS).


Author(s):  
Konstantinos Koumaditis ◽  
Marinos Themistocleous

Information Technology (IT) projects are more and more aligned with business goals. Service Oriented Architecture (SOA) was introduced to achieve this, align business with IT, and increase IT flexibility, reuse of services in more manageable way. Unfortunately, healthcare organisations that have adopted SOA have yet to benefit from their investment. Industry analysts and academics agree that SOA Governance is a critical success factors for SOA projects. Addressing the substantial research gap, this chapter investigates longstanding challenges and proposes a SOA Governance framework as a way to improve IT/SOA success and guide the alignment of IT and business. The authors present a systematic synthesis of the latest research findings and professional experience on SOA Governance considerations for successful IT projects.


Author(s):  
Youcef Baghdadi ◽  
Naoufel Kraiem

Reverse engineering techniques have become very important within the maintenance process providing several benefits. They retrieve abstract representations that not only facilitate the comprehension of legacy systems but also refactor these representations. Business process archaeology has emerged as a set of techniques and tools to recover business processes from source code and to preserve the existing business functions and rules buried in legacy source code. This chapter presents a reverse engineering process and a tool to retrieve services from running databases. These services are further reused in composing business processes with respect to Service-Oriented Architecture, a new architectural style that promotes agility.


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