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International Conference on Advanced Information Systems Engineering

CAiSE 2021: Advanced Information Systems Engineering pp 536–550Cite as

A Multi Case Study on Legacy System Migration in the Banking Industry

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Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 12751))

Abstract

Advances in technology, changing customer requirements, and pressure from business goals are the main drivers for innovation in the banking industry. Legacy architectures with monolithic structures prevent banks from implementing new generation banking models. To stay competitive, banks migrate to modular and scalable architectures. This migration has a significant impact on banks’ technical and organizational infrastructures, so it is crucial to devise an end-to-end migration strategy and plan the transformation. This paper reports our observations on the legacy system migration of three large retail banks between 2014 and 2020, focusing on the evaluation and prioritization criteria for their application portfolio to be migrated. We compare and contrast the motivations, migration strategies, and migration prioritization methods and discuss key takeaways from these high scale migration projects.

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Acknowledgments

The second author has been partially supported by the Scientific and Technological Research Council of Turkey through BIDEB 2232 grant 118C255, Requirements Engineering for Digital Transformation.

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Authors and Affiliations

  1. DefineX Consulting Technology Labs, Istanbul, Turkey

    Hasan Emre Hayretci

  2. Boğaziçi University, Istanbul, Turkey

    Hasan Emre Hayretci & Fatma Başak Aydemir

Authors
  1. Hasan Emre Hayretci
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  2. Fatma Başak Aydemir
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Corresponding author

Correspondence to Fatma Başak Aydemir .

Editor information

Editors and Affiliations

  1. The University of Melbourne, Melbourne, VIC, Australia

    Marcello La Rosa

  2. The University of Queensland, St Lucia, QLD, Australia

    Shazia Sadiq

  3. Universitat Politècnica de Catalunya, Barcelona, Spain

    Ernest Teniente

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Hayretci, H.E., Aydemir, F.B. (2021). A Multi Case Study on Legacy System Migration in the Banking Industry. In: La Rosa, M., Sadiq, S., Teniente, E. (eds) Advanced Information Systems Engineering. CAiSE 2021. Lecture Notes in Computer Science(), vol 12751. Springer, Cham. https://doi.org/10.1007/978-3-030-79382-1_32

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  • DOI: https://doi.org/10.1007/978-3-030-79382-1_32

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-79381-4

  • Online ISBN: 978-3-030-79382-1

  • eBook Packages: Computer ScienceComputer Science (R0)

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