Our Porting, Reengineering, Integration, Migration and Extension (PRIME) service offerings broadly cover the following modernization scenarios:

Porting

This primarily deals with enhancements made to the technical environment of the existing legacy system. The enhancements could involve changing the hardware platform and/or operating system on which the system is currently deployed.  The other technical aspects of the system like programming language, data management mechanisms, and application design are either not changed or changed very minimally.

Re-engineering

This invariably involves a thorough change of the existing legacy application. The application design, programming language, and data management technology invariably are changed in conformance with the ‘open’ environment. The hardware is usually not changed, unless it is for higher processing power and/or for greater resilience to faults. Extra types of hardware, such as new devices, may however, be added, to provide for greater connectivity and/or usability of the re-engineered application.

Integration

The EAI offering addresses challenges caused by disparate systems on heterogeneous technologies, data management and duplication challenges in the organization. Zensar offers a host of services from Consulting to Integration, & Porting/Migration services for EAI products. Our approach offers the following benefits:

• Iterative and Incremental Development Approach to gain early ROI
  seamlessly linking heterogeneous business applications into one unified system. 
• Migrated application integrated with other existing enterprise applications
• Competency in a variety of technologies like: Tibco, Seebeyond, Vitria, WebMethods, MQSeries, BizTalk, Web Services, as well as custom built solutions

Migration

Programming language conversion or the data management technology is what typically constitutes the migration. Changes are made in the various parts of the application for data access and storage in the new data management environment. Migration does not include any changes to the following:

• Operating System, Hardware platform and any other related system call and utilities.
• Application design, Business logic and its structure
• Data model design with data structures

Extension

Extension is more of a ‘quick-fix’ solution; in that it does not address the core problems in the application but seeks to merely replace the User Interface to provide users with a modern look & feel. The Mainframe in this case is treated as a black-box exposing some or all of its functionality by means of web services where applicable, and the new screens are developed to be able to ‘talk’ to the Mainframe. Zensar creates a new user interface layer (screens) that connect to the Mainframe. The green screen terminal is thus transplanted into a web environment, delivering rich user experience through the use of web technology. The Mainframe however continues to exist as it is.