Enterprise Software: System Integration
A new application rarely stands alone — it needs to work with ERP, CRM, warehouse management, and third-party systems. We analyse existing interfaces and data flows, design clean integration architectures, and test all scenarios before the new software goes into production.
Challenges you'll recognise
- Data must be manually synchronised between multiple systems because no interfaces exist or work reliably.
- A new software needs to work with the existing ERP, but nobody has defined the integration architecture.
- Integrations between systems break regularly without anyone noticing immediately or knowing the cause.
Integration Architecture
Every integration begins with an architecture analysis: which data needs to flow in which direction and when, which systems have read or write access, which protocols are already in use? Based on this analysis we choose the right integration pattern — from direct API connection to middleware or event buses.
Legacy System Connectivity
Not all systems offer modern APIs. For older systems with file-based integration, proprietary protocols, or SOAP interfaces, we develop adapters and anti-corruption layers that decouple the new and old worlds cleanly — without touching the legacy system or endangering its operation.
Data Synchronisation
When data lives in multiple systems, consistency problems arise. We design synchronisation strategies that define which system is the authoritative source, how conflicts are resolved, and which data flows in which direction — so no manual reconciliation is needed and data reliably matches.
Testing and Validation
Integrations are particularly error-prone because they depend on systems that change independently of each other. We build extensive integration tests, simulate failure scenarios, and test all interfaces in realistic staging environments before they go into production.
Good to know
Define the authoritative source
In every data flow, one system must be the authoritative source. When it's unclear which system wins in a conflict, inconsistent data states arise that require manual resolution — a permanent maintenance burden avoidable with clear architecture.
Anti-corruption layer protects
Direct access to legacy system structures tightly couples new components to old ones. An anti-corruption layer translates between worlds and allows the legacy system to be independently operated or replaced without touching the new part.
Integrations need their own tests
Unit tests don't check integrations. Dedicated integration tests against realistic staging systems are the only way to verify interfaces reliably — and they must run regularly because external systems change.
Frequently asked questions
What do we do when a third-party system doesn't offer a modern API?
How do you prevent a change in one integration from breaking others?
How long does a typical ERP integration take?
Success you can measure
With us you're always at the forefront of enterprise software development and benefit directly from our extensive development know-how. Together we examine your business processes, identify key optimization potential and develop individually tailored solutions. Your business goals and expectations are the focal point of everything we do.
Comprehensive technological expertise
We choose the stack per project by requirement — established, future-proof technologies instead of niche dependencies.
Specialized in enterprise solutions
Deep integration into ERP, CRM and third-party systems instead of isolated solutions — the real lever lies in clean interfaces.
Years of experience in the software industry
From requirements analysis to operation after go-live — we know the pitfalls of large software projects.
Multidisciplinary expert team
Analysis, architecture, backend and operations from a single source — no friction at the seams between disciplines.
Long-term business success
We build maintainable foundations that grow with your company — and stay by your side with support and further development.
READY FOR SOFTWARE BUILT AROUND YOUR BUSINESS?
Whether you want to optimize existing systems or introduce new digital solutions – we'd love to meet you and explore new paths together. An initial conversation is the foundation for your success.
Related articles from our blog
Angular vs. Next.js — welches Framework trägt deine Enterprise-App?
Angular oder Next.js für deine Enterprise-Web-App? Architektur, SEO, Hiring und Wartung im Vergleich – mit klarer Empfehlung nach Anwendungsfall.
Self-hosted instead of SaaS subscription: you can run these open source tools for free with Coolify
Heroku frozen, Vercel invoices viral: in 2026, it's worth taking a look at self-hosted SaaS alternatives. Which open source tools you can run for free with Coolify, what it really costs to run them and when the switch pays off.
SaaS vs. customised software: the decision matrix for SMEs
Most build-versus-buy decisions are made on the wrong axis. The question of SaaS or customised software is not a question of cost - it is a question of differentiation. Plus: the decision matrix and the hybrid route.
Related services