Plan integration tests correctly
Long before an IT system goes live, all the components involved should work together - from the front end and APIs to the database. Integration tests ensure exactly that: they check whether data exchange works, business logic is effective and systems interact in a stable manner. Solid planning from the outset saves expensive rework and ensures reliable processes.
Why integration tests are crucial
Many project teams think in terms of individual components: Module A works, module B works - so everything is fine. But when the two are supposed to work together, it often becomes apparent that data formats do not match, interfaces pass on incorrect values or processes freeze.
Integration tests make it possible to identify these errors at an early stage. They depict real usage scenarios and ensure that your system works as a whole - before it goes live, before users notice it, before business processes come to a standstill.
Typical stumbling blocks with a poor test plan
- Too late in the project: If integration is only tested shortly before go-live, there is hardly any time for corrections.
- Incomplete coverage: Often only standard cases are tested - edge and error cases remain untested.
- Lack of automation: Manual tests are time-consuming, error-prone and not repeatable.
- Isolation instead of interaction: individual components run in the test, but in the real system landscape they fail to interact.
Our structured approach at DI Experts
- Early test design
We identify interfaces, common data models and dependencies as early as the concept phase - and define test scenarios based on them. - Definition of relevant use cases
We prioritize which processes need to be checked integratively - from classic transactions to exceptional cases. - Establish automated test pipelines
Integration tests are automated using tools such as Postman, JUnit or GitLab CI - for reproducible results and lasting quality. - Integration in CI/CD pipeline
Every build is tested automatically - so errors are noticed immediately, not just in the error casino after the release. - Early tests in an isolated test environment
We use staging or sandbox environments to reproduce real conditions without risk. This allows system versions to be validated at an early stage. - Continuous monitoring & reporting
Test results flow into dashboards and timelines - relevant for developers, clients and management.
Your advantages with DI Experts
- Fewer surprises during go-live: problems do not only become apparent shortly before the launch - they are identified and solved early on.
- Greater system stability: Automated tests create confidence - in every new deployment version.
- Efficient use of resources: Only tested quality makes change cycles calculable and efficient.
- Transparent communication: Test results provide clear facts - instead of gut feelings.
Conclusion
Integration tests are not a nice-to-have - they are the key to reliable IT systems. With DI Experts' structured approach, integration testing is implemented systematically, efficiently and securely. This makes every system landscape more stable, maintainable and future-proof.
Are you planning an integration go-live? Let's talk about integration tests in good time - before small mistakes turn into big problems. Our experienced integration experts will accompany you step by step - with technical depth, organizational know-how and an eye for the essentials.
Contact us