iSquare Info-Tech(Shanghai)Co.,Ltd

The rich experience of transforming legacy systems to more efficient and effective applications since 2003 has helped iSquare identify strategic factors in defining the migration methodology and plans, and a legacy system conversion procedure.

Migration methodology can encompasses a strategy that:

	Integrates Legacy Systems and new Internet driven technologies.
	Migrates systems and business logic to new architectures, languages and web-based environments.
	Manages and ensures systems quality and stability.

Plan

	Migrate a legacy or existing application to a new operating environment.
	Replace a legacy system, moving the data from the legacy application to the new application while preserving data integrity.
	Consolidate legacy systems eliminating duplication by moving data and functionality from various systems to a smaller number of systems.

Legacy System Conversion procedure

It is tailored to each client's case; still it normally comprises the following steps:


	Initial analysis step allows sufficient understanding of the original application functionality.
	Functional decomposition of the original application. Examples of the defined functional components are screens, reports, etc.
	Selection of the defined functional components, which should be ported to the new application. This step may require extensive discussion and agreement with the customer.
	Development of the system conversion specification. This comprehensive document in particular indicates change requirements to the original functionality and new required features.
	Development of proper data conversion mechanisms allows identification of and resolution of data inconsistency problems.

A Parallel Run step including compatibility checklists is often required to make sure that original application correctly reproduces the legacy system functionality. The Parallel Run normally requires a defined period of concurrent use of both legacy application and the new system on the same data.

Custom Translation Tools:

Porting a large-scale software application demands strong automation to meet economic and timeframe objectives.iSquare's team can design and implement custom translators to meet the requirements of the customer's migration task.

iSquare Info-Tech(Shanghai)Co., Ltd
503/F Hi-Tech King World B 668 Beijing Road.Shanghai,China
Tel:+86(21)53083811 Fax:+86(21)53086890 Email:service@iSquare.net