Specialist applications – custom software for specialised business processes

EPSIA develops custom software for specialised business processes that cannot sensibly be covered by standard software. This includes management, desktop and web applications that are tailored to a company's specific workflows and can be maintained and developed further over the long term.

What situation is this service designed for?

A specialist application developed by EPSIA makes sense when operational workflows are organised with spreadsheets, manual steps or several separate tools, and the available standard software does not adequately reflect the actual process.

Typical customers are specialist departments of mid-sized companies, operators with several locations, and engineering and planning firms with their own processes and documentation requirements.

What does EPSIA deliver for specialist applications?

EPSIA develops specialist applications from requirements analysis and the functional specification through to deployment and operation. Depending on the project, this includes:

• Web applications and platforms with TypeScript, Node.js, Next.js, React and MariaDB, with separate instances or a multi-tenant architecture where needed.
• Windows desktop applications with C# and .NET, where needed as a standalone application without a classic installation.
• Import, processing and reconciliation of data from XML, CSV, Excel and existing PDF archives.
• Operation with Docker, secured connections via WireGuard, and monitoring and fault alerts.
• Automated tests of the core business logic and browser tests for key user and business workflows.

What results has EPSIA achieved with specialist applications?

Reference projects show how EPSIA covers specialised business processes with custom software:

• Booking platform for camping, motorhome sites, marinas and car parks: 31 locations for 20 operators rolled out within 15 weeks. Each location runs as its own instance; 874 automated tests check the software before every rollout.
• Documentation check for fire alarm systems: A Windows application automates steps that previously had to be carried out file by file. It took around three months from quotation to first delivery.

How does a specialist application project start?

A specialist application project with EPSIA starts with a requirements analysis and a functional specification at an agreed fixed price.

The functional specification describes workflows, data, user roles, interfaces and functional requirements concretely enough to determine the scope and effort of the subsequent software development reliably. On this basis, EPSIA can also offer the implementation as a fixed-price project.

Who is this service not suitable for?

EPSIA develops custom specialist software in which business logic, data processing and company-specific workflows are the focus.

Pure marketing websites and online shops are not part of EPSIA's services. Nor does this service area cover the development of standalone chatbots, RAG systems or primarily AI-based workflow automation.