Legacy Modernization
Preserve proven functionality. Open up new possibilities.
Your application supports important business processes, but changes take longer and essential knowledge sits with a few people. We help modernize established software in manageable steps. Together, we identify what should be preserved, where risks arise and which changes offer the most value. Operational continuity is considered from the start.
Your options
Services that move your project forward
Assess the existing application
We examine architecture, dependencies, source code, data, and operations. Risks and knowledge gaps are ranked according to their business importance.
A comprehensible basis for your investment decision.
Choose a modernization approach
Continued operation, targeted renewal, platform change and replacement are compared on the basis of common criteria. Cost assumptions and dependencies remain visible.
You choose a suitable modernization path with understood trade-offs.
Preserve business behavior
We record important processes and exceptions and set up suitable comparison and regression tests. Undocumented rules are clarified together.
Existing functions are protected more systematically in the event of changes.
Decouple components gradually
Clear interfaces allow suitable functions to be gradually replaced. Transitional solutions are given a defined task and a planned end.
Modernization will be possible in smaller, verifiable stages.
Plan data migration and cutover
We prepare migration, data synchronization, parallel operation and fallback options for the specific workflow. Business validation checks accompany the cutover.
A controllable transition instead of unchecked data transfer.
Transfer knowledge and operations
Architectural decisions, development processes and operational knowledge are documented and tested together. Your team receives a basis for further changes.
Less dependence on knowledge held by individual people.
Where to start
Legacy Modernization Use cases
Three example situations show how we can help.
End of support approaching
A runtime or database reaches the end of support. We check dependencies and plan the technical renewal, including necessary application tests.
New interfaces are needed
A core system needs to support portals or partners. A defined integration layer can enable new uses while existing business functions remain in place.
Changes become a risk
Small adjustments cause unexpected side effects. We make couplings visible, secure central processes and prioritize targeted structural improvements.
From requirements to results
A clear process with agreed milestones
Examine the initial situation
Business criticality, technical risks, and change goals determine the scope of the investigation.
Compare options
We evaluate modernization paths and determine the first verifiable stage.
Renew the first area
Tests and business acceptances accompany the conversion of a limited functional area.
Changeover and continue planning
The handover takes into account operations and data. The results of the first step will be incorporated into the further timetable.
Your benefit
What you receive
- An assessment of risks, dependencies and modernization options.
- Prioritized roadmap with clear decision points.
- Modernized functional area including agreed tests.
- Migration, fallback and operational documents for the conversion.
Ways to work with us
Choose a starting point that fits your needs. We agree the scope and required effort in a tailored proposal.
Legacy assessment
To make an informed decision: technical condition, business risks, and a prioritized modernization path.
Request a quote: Legacy assessmentModernize an application component
For a specific bottleneck: focused modernization with tests, integration and a planned cutover.
Request a quote: Modernize an application componentOngoing modernization support
For larger projects: coordinated modernization stages with business approvals and knowledge transfer.
Request a quote: Ongoing modernization supportSYNEDAT PLATFORM
Platform experience for your project
We use these selected tools in SYNEDAT PLATFORM or its delivery processes. We adapt suitable practices to your project and align their integration with your existing systems.
From source code to verified artifacts
Azure DevOps · GitLab · Jenkins · Harbor · Nexus
Version control, build processes and artifact repositories make software versions traceable. Our platform approach connects these activities with defined checks and approvals. For your project, we select tools that fit your teams and existing processes.
A clear delivery process and traceable software versions.
Developer access and shared knowledge
Backstage · code-server · Structurizr · Swagger UI
A service catalog, suitable development environments, architecture views and API documentation help teams find their way and work together. The focus is on useful workflows and maintained information. An additional portal alone does not remove an organizational bottleneck.
Less time searching and an easier start for development teams.
Quality and the software supply chain
SonarQube · Trivy · Dependency-Track · DefectDojo · Renovate · Syft · Cosign
Code quality, vulnerabilities, dependencies and artifact provenance require different checks. Findings need to be linked to the product and delivered version, with a defined process for resolving them. Automated checks complement reviews and informed decisions.
Security and quality information that teams can act on.
Questions before you get started
Does the entire application have to be redeveloped?
Not necessarily. Targeted modernization can cost less and carry less risk. We compare the options against business requirements, technical constraints and the expected remaining lifetime of the application.
Can the application continue to run during this time?
In many projects, a gradual transition is possible. Parallel operation, maintenance windows and data synchronization must be planned for this. Which interruptions can be avoided depends on the specific architecture.
How do you deal with missing tests?
We start with important user processes and critical rules. Comparative tests document current behavior, while experts distinguish desired behavior from known errors.
What happens to undocumented business logic?
Interviews, source code analysis and concrete business transactions help to make rules visible. Unclear decisions are coordinated with the department and recorded in comprehensible examples.
Is migrating to the cloud always part of modernization?
No. On-premises systems can also be modernized. The operating model is evaluated based on your requirements; a platform change should create a justified benefit.
How do we avoid new long-term dependencies?
We document APIs, operating requirements and deliberately selected vendor dependencies. Data export and transferability are considered in the design. Full interchangeability must be weighed against additional development effort.
How is success measured?
Useful measures include shorter change lead times, fewer known defects, resolved support risks or a successfully migrated business process. We agree specific criteria for each stage.
What is a sensible first assignment?
A delimited assessment or the modernization of a manageable module creates reliable insights. The result should enable a clear decision about the next step.
Discuss your next step
Which application should be easier to change again?
Describe the pressure to change and the most important function of your application. We suggest a suitable start to modernization.
Legacy Modernization
Your next step
Tell us what you need. We will route your enquiry to the right team and discuss the next steps with you.
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