A taxonomy of service identification approaches for legacy software systems modernization

Abdellatif, Manel; Shatnawi, Anas; Mili, Hafedh; Moha, Naouel; Boussaidi, Ghizlane El; Hecht, G.; Privat, Jean; Guéhéneuc, Yann‐Gaël

doi:10.1016/j.jss.2020.110868

Cited by 36 publications

(30 citation statements)

References 16 publications

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“…Existing research covers a variety of topics, starting from decisionmaking over process strategies [3] to quality assurance [6] and organizational aspects [9]. The challenging question of service identification techniques in general [1] and for microservices specifically is targeted by several dozen studies [10,12]. However, our empirical research has shown that this extensive body of scientific literature is mostly unknown to practitioners and therefore rarely leveraged [9].…”

Section: The Academia-industry Gapmentioning

confidence: 99%

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Towards an Architecture-centric Methodology for Migrating to Microservices

Fritzsch¹,

Bogner²,

Haug³

et al. 2022

Preprint

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The euphoria around microservices has decreased over the years, but the trend of modernizing legacy systems to this novel architectural style is unbroken to date. A variety of approaches have been proposed in academia and industry, aiming to structure and automate the often long-lasting and cost-intensive migration journey. However, our research shows that there is still a need for more systematic guidance. While grey literature is dominant for knowledge exchange among practitioners, academia has contributed a significant body of knowledge as well, catching up on its initial neglect. A vast number of studies on the topic yielded novel techniques, often backed by industry evaluations. However, practitioners hardly leverage these resources. In this paper, we report on our efforts to design an architecture-centric methodology for migrating to microservices. As its main contribution, a framework provides guidance for architects during the three phases of a migration. We refer to methods, techniques, and approaches based on a variety of scientific studies that have not been made available in a similarly comprehensible manner before. Through an accompanying tool to be developed, architects will be in a position to systematically plan their migration, make better informed decisions, and use the most appropriate techniques and tools to transition their systems to microservices.

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Section: The Academia-industry Gapmentioning

confidence: 99%

“…2) Architectural Refactoring The secondary studies by Abdellatif et al [1], Bajaj et al [3], Schroer et al [13], Ponce et al [12], and Fritzsch et al [10] provide a holistic overview of this major technical challenge in a migration. Our earlier study [10] attempted a classification of approaches based on their underlying techniques.…”

Section: ) Migration Processmentioning

confidence: 99%

Towards an Architecture-centric Methodology for Migrating to Microservices

Fritzsch¹,

Bogner²,

Haug³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Therefore, to achieve the return of the investment made, the ICT hardware and software are used for a long period until they are classified as legacy systems. This long usage period makes legacy systems increasingly important to the organisation [1,2]. They maintain important business logic and data needed in the daily business operations [3].…”

Section: Introductionmentioning

confidence: 99%

“…Hence, legacy systems continue to play an important role in the implementation of ICT today. Large organisations still use these systems in operating their businesses including in the delivery of critical services [1,2]. However, legacy systems that are associated with the use of obsolete technologies pose difficulties to organisations in implementing daily operations.…”

Section: Introductionmentioning

confidence: 99%

Legacy Systems Modernisation for Citizen-Centric Digital Government: A Conceptual Model

2021

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Information technology and communication (ICT) plays an important role as a catalyst for organisational development and innovation. However, old information systems that are known as legacy systems often expose organisations to the risk of business failure. These systems are not only impeding the advancement in technology strategy but also hindering the organisations’ business competitiveness. Nevertheless, legacy systems are essential in supporting critical functions in organisations including the public sector and could not be scrapped easily. These systems need to be given a new strength through modernisation to continue providing the best service in line with global trends. Modernisation is a complex task that involves several related aspects. In the context of the public sector, legacy systems involve a complicated information relationship, environment, and culture, while ensuring the citizens are of high priority. The implementation of a digital government represents the transformation of the public service delivery to the citizens that emphasises a citizen-centric design. This study, therefore, aims to address this concern by reviewing the factors involved and suggesting a guideline in the form of a conceptual model to assist in the modernisation of legacy systems for a citizen-centric digital government. Data from the theoretical study were analysed using content analysis. The results show that the legacy systems’ modernisation comprised four main aspects, namely human, process, product, and organisation aspects, with related factors and elements. This model contributes as a reference for the public sector and provides overall guidance in performing legacy systems modernisation.

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“…Examples of uncertainty incorporate client firms' low switching costs and perceived risks, SaaS vendors' low customization and control over future SaaS development, process dependence, and information security. Unlike traditional IT-based innovation that focuses on a firm's internal resource management (e.g., process improvement), the extent to which SaaS firms create value relies on their ability to leverage both internal and external resources at the post-adoption stage such as leveraging resources provided by SaaS vendors through good management of the firm vendor relationship (e.g., absorbing SaaS best practices for task improvement) [1]. Few studies focus on SaaS-based innovation at the post-adoption stage that reflects both SaaS features and value creation from the firm-vendor relationship [2].…”

Section: Introductionmentioning

confidence: 99%

Understanding the Formation of Software as a Service (Saas) Commitment the Relational Value Creation Perspective

Hsu

2021

IJIIS Int. J. Informatics Inf. Syst.

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This study focuses on the use of an important IT innovation--software-as-a-service (SaaS), and draw on sensemaking and the dedication-constraint framework to explain the formation of SaaS commitment. Building on and extending prior studies, we posit that managers' perceived relational value from SaaS consumption transforms their initial sensemaking of SaaS features into commitment. SaaS features are characterized as strength frames and weakness frames. Perceived relational values are conceptualized as process flexibility, task-knowledge coordination, process specificity, and trust. The proposed model and hypotheses are largely supported by the empirical data from 169 SaaS client firms. We discuss theoretical and practical implications.

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A taxonomy of service identification approaches for legacy software systems modernization

Cited by 36 publications

References 16 publications

Towards an Architecture-centric Methodology for Migrating to Microservices

Towards an Architecture-centric Methodology for Migrating to Microservices

Legacy Systems Modernisation for Citizen-Centric Digital Government: A Conceptual Model

Understanding the Formation of Software as a Service (Saas) Commitment the Relational Value Creation Perspective

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