The Study on Migration Strategy of Legacy System

In the upgrade process of enterprise information systems, whether new systems will be success and their development will be efficient, depends on how to deal with and utilize those legacy systems. We propose an evaluation system, which comprehensively describes the capacity of legacy information systems in five aspects. Then a practical legacy systems evaluation method is scripted. Base on the evaluation result, we put forward 4 kinds of migration strategy: eliminated, maintenance, modification, encapsulating. The methods and strategies play important roles in practice.

Authors:

• Chao Qi
• Fuyang Peng
• Bo Deng
• Xiaoyan Su

Keywords:

• Legacy Systems
• Evaluation Method
• Migration Strategy.

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