Modernization
Legacy software modernization and source-code changes
An older application may still do important work. Understand it first, then plan improvements that preserve the behavior your business needs.
The business problem
An older application may still be essential but difficult to maintain, awkward to use or dependent on aging components. Replacing everything at once may introduce unnecessary disruption.
Practical benefit
Improve the parts causing difficulty while preserving the useful behavior and information the business already relies on.
Typical work
Typical work can include reviewing available source code, modifying screens and business rules, updating dependencies where feasible, adding tests, and planning a gradual migration with backup and rollback steps.
An illustrative example
Illustrative example: improve a difficult order-entry screen and its validation while keeping the existing order history and agreed business rules. Feasibility depends on the actual code and access available.