Custom software for clearly defined business tasks

Choose technology after defining the business rule

We begin with inputs, expected outputs, the users involved and what should happen when an operation fails. A small application must be understandable to the team that operates it; a repeated batch process should report errors clearly and protect source files. The software design should fit the importance of the task rather than the appeal of a particular framework.

Depending on requirements, Python, C#/.NET or COBOL outside a mainframe environment may be considered. Language selection depends on interface requirements, deployment constraints, available skills and future support. Local operation and fewer network dependencies can be valuable, but neither is a complete security strategy.

• Calculations: replace repetitive spreadsheet steps with controlled processes.
• Desktop software: provide an interface suited to a defined workflow.
• File conversion: validate transformations and preserve useful audit records.
• Business utilities: generate exports, checks and reproducible reports.

Related sections

• AI and automation
• Pacta COBOL Lab

Think about operation and recovery before delivering the program

A working executable is only part of the handover. Updates, configuration, access permissions, data storage and recovery procedures must also be understood. Tests using representative data and a concise technical guide make it easier for the organisation to run the software without relying on its original developer for every adjustment.

Automation projects and the Pacta COBOL Lab may provide approaches for specific cases. Software that handles sensitive information or is exposed to the internet needs a dedicated security review and suitable expertise beyond ordinary functional development.

A workable process

• Record the essential business rules and obtain approval.
• Deliver a testable version with example workflows and recovery guidance.
• Agree how future maintenance and corrections will be managed.