How many of you have to implement your own authentication mechanism -- usually some simple database lookup ? How often have you stopped to think about the workflow needed for creating and managing user account ? This is a common task in any development project.
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Data migration is necessary when a company upgrades its database or system software, either from one version to another or from one program to an entirely different program.
Data migration typically has four phases:
- analysis of source data
- extraction and transformation of data
- validation and repair of data, and
- use of data in the new program
Today's business applications rarely live in isolation. Users expect instant access to all business functions an enterprise can offer, regardless of which system the functionality may reside in.
This requires disparate applications to be connected into a larger, integrated solution. This integration is usually achieved through the use of some form of "middleware". Middleware provides the "plumbing" such as data transport, data transformation, and routing.