Performance evaluation for software migration

Abstract

Advances in technology and economical pressure have forced many organizations to consider the migration of their legacy systems to newer platforms. Legacy systems typically provide mission critical services vital for an organization's business needs. These systems are usually very large and highly complex with little or no documentation. Furthermore, fewer people can understand and maintain these systems. While several techniques exist to verify the functionality of the migrated system, the literature is still lacking methods to effectively assess the performance impact of software migration. In this paper, we propose a new method designed specifically to address performance evaluation in software migration projects. The new method uses simple models and incorporates techniques for model validation and resource demand mapping for performance evaluation and capacity planning.

A Guidance to Legacy Systems Modernization

“…The technology used in developing the systems has become outdated for the recent generation and resulted to technical issues to the organization. Legacy systems maintenance had become expensive, hard, and taking too much time [5], [6], [26], [30], [31]. The maintenance increases the organizational cost due to the obsolescence and technical support issues [6], [32].…”

“…The maintenance process of the systems becomes tough and slow [6], [2], [16], [26]. There are also difficulties due to the insufficiency of experts in the old technologies used and the documents to be referred [6], [31], [33]. Furthermore, the systems can't meet existing needs of stakeholders.…”