Legacy apps to cloud: A risk-based approach

Naresh Sharma
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Naresh Sharma: Cathay Pacific Airways Ltd, Hong Kong

Cyber Security: A Peer-Reviewed Journal, 2023, vol. 7, issue 1, 16-23

Abstract: Legacy systems or applications constitute a certain portion of IT systems running in an organisation. The percentage of these legacy systems varies depending on the IT maturity, IT vision, roadmap, business needs and compliance or legal requirements faced by organisations. In some cases, the organisations run key operations on legacy systems because of the nature of their business or the upstream/downstream requirements of that application. Managing legacy applications puts a heavy burden on IT budgets and with organisations moving the applications on cloud, legacy applications will need to be considered to meet these long-term goals. Legacy systems come with their own challenges and moving them on cloud does alleviate some of them, but it needs thorough planning along with comprehensive risk management. This paper provides insights on challenges coming from legacy systems, planning their migration to supported systems on-premise or embarking to cloud journey, and how to run an effective risk management programme that will facilitate enterprises to take risk-based decisions.

Keywords: legacy systems; risk management; EOL/EOS; migration; application rationalisation; migration patterns; culture; regulatory/compliance (search for similar items in EconPapers)
JEL-codes: M15 (search for similar items in EconPapers)
Date: 2023
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