From Legacy to Cloud: Risks and Benefits in Software Cloud Migration

P. Lago, Anastasija Efremovska

Research output: Chapter in Book / Report / Conference proceedingChapterAcademicpeer-review


The cloud has quickly become a disruptive technology, especially when it comes to the way enterprises run their IT. What began as a pioneering idea of companies such as Amazon and Google, quickly started to gain in popularity among enterprises. The main reason is the tremendous potential in cost savings that can be achieved. As Nati Shalom reports in her article “Moving Enterprise Workloads to the Cloud” [15], on a massive scale the cost savings that can be achieved reach 21% if only three mission-critical applications weremoved to the cloud. Another driver towardsmigration is the maturing of cloud technology in areas that were considered as the biggest deal-breakers for migration such as security or complexity. Different degrees of SLAs and offerings in the form of IaaS, PaaS or SaaS seem to be able to accommodate the plethora of enterprise needs. Yet, all these benefits can be achieved only if the application is suitable for the cloud. This suitability, however, is not limited to the technical characteristics of the application – as many managers still think.
The aim of this chapter is to identify and classify the various factors that influence the success of enterprise application migration to the cloud. If known, addressing these factors can guide enterprises in deciding if a selected cloud environment is right for the considered software applications. The study also helps break the myth that migration is a one-time project.
Original languageEnglish
Title of host publicationSoftware Architecture for Big Data and the Cloud
PublisherMorgan Kaufman
Number of pages162
ISBN (Electronic)9780128054673
Publication statusAccepted/In press - 1 Jun 2017


  • legacy
  • cloud migration
  • software architecture
  • software engineering
  • Decision making

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