Delphi Partner for Support and Migration

Robert Schmuck
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Robert Schmuck
CTO | Technology

+41.. Show number +41 55 253 00 53

Delphi Modernization enables companies from numerous industries such as Manufacturing, Logistics, Medical technology, etc., to safely continue operating old applications, reduce costs, and secure their integration into modern systems.

In this article, you will learn:

  • Delphi Applications in the industry are stable, but insecure and expensive to maintain. A lack of developers and outdated technologies exacerbate the problems.
  • Delphi Modernization in Switzerland means targeted stabilization and integration with modern systems instead of a risky complete replacement.
  • soxes is your partner for Legacy Software Support and combines Delphi expertise with .NET, Python, PostgreSQL, and cloud solutions for companies from various industries.

Risks and Challenges of Legacy Software

  • Security Vulnerabilities

    Outdated software is often no longer up to date with the latest security technology.

  • High Maintenance Costs

    Supporting outdated systems can be expensive and time-consuming.

  • Lack of Integration

    Legacy software is often not compatible with modern systems, which makes integration difficult.

  • Employee Departure

    When experienced employees leave the company, the necessary knowledge to effectively maintain complex Delphi systems is often lost.

  • Fewer and Fewer Delphi Developers

    A declining number of developers are skilled in older Delphi versions. This leads to a dependency on single individuals.

  • Technical Limitations

    Many systems still run on 32-bit architectures or use direct database access, which no longer meets today's standards.

Delphi as Business Software: Often Stable, But Under Pressure

Many companies from different industries (Manufacturing, Production, Medical technology, Finance) have relied on Delphi-based software for decades. It controls machines, links production processes with ERP systems, or represents highly specialized applications that are precisely tailored to operational workflows. The strength of such solutions lies in their stability and proximity to the hardware. But with the years, the pressure grows: security vulnerabilities, a lack of developers, and increasing demands for integration into modern IT landscapes make it increasingly difficult to operate these systems in a future-proof manner.

Opportunities Through Modernization and Stabilization

Despite all the challenges, Delphi systems also offer opportunities if they are strategically developed further. Instead of rebuilding everything from scratch, existing solutions can be modernized step-by-step. Typical approaches include modularizing large applications, introducing modern interfaces (REST, gRPC), or migrating old databases like Paradox or Firebird to PostgreSQL or MS SQL. This keeps the application stable in operation while also enabling new features, cloud integration, or IoT connections.

For your company, this means:

  • Longer lifespan of existing systems without security risks.
  • Better maintainability thanks to documentation, code reviews, and modern toolchains.
  • Future-proof through integration with ERP, MES, or production plants.
  • Compliance & Security with standards like ISO 27001, TLS encryption, and code signing.

Our Approach: From Analysis to Migration

At soxes, we guide you from the initial analysis to secure implementation. Our approach combines stabilization with a clear modernization strategy:

  • Analysis & Code Review: Using tools like SonarQube or Pascal Analyzer, we evaluate code quality, dependencies, and risks.
  • Architecture & Modularization: We break up monolithic structures and develop modules that can be maintained independently.
  • Interfaces & Data Migration: We modernize critical interfaces and secure your data during the transition to modern database systems.
  • Quality & Security: Automated tests, CI/CD pipelines, and security checks create a stable foundation for the future.
  • Stabilization or Modernization: Together, we determine whether a secure continuation or a gradual replacement is the better solution.

Schema of a Delphi Replacement

How to Make the Right Decision: Stabilize or Replace Delphi

1. Analysis of the Starting Situation

Before we make a joint decision for or against a replacement, it is important to thoroughly analyze the starting situation. This includes:

  • Assessment of Software Size and Complexity: How extensive is the application, and how many dependencies exist?
  • Review of Documentation and Critical System Components: Is all relevant information documented and available? How many people have access to the solution?
  • Risk Management: Are outdated or even EOL components being used? Do we need to perform an initial risk management assessment? Is there a “catastrophe” that could occur very suddenly? (e.g., a missing backup or the departure of a developer.)

2. Stabilization, Yes or No?

Not every Delphi application has to be replaced immediately. For many industrial companies, it makes sense to first stabilize existing systems, reduce risks, and develop a roadmap for the coming years. In other cases, for example, when security vulnerabilities can no longer be closed or the architecture is too rigid, a targeted new development in .NET or Python is recommended. It is important that the decision is based on an analysis, not a gut feeling.

Stabilization Phase

In this phase, immediate measures are required to secure the software:

  • Create Backups: We ensure that all important data is backed up.
  • Update Documentation: Here, we record all changes and system settings.
  • Risk Minimization: We identify and minimize potential risks (quick wins).

Alignment with the Client on Necessary Steps

At soxes, we place great value on transparency and communication. We jointly discuss the necessary steps and coordinate the approach to find the best possible solution for your individual needs.

Patrick Büchler, CEO soxes

Patrick Büchler, CEO soxes

Development of a re-engineering strategy

A successful re-engineering strategy requires a clear understanding of the existing architecture and well thought-out planning. Without thorough preparation, switching to new software can bring unexpected risks and costs.

Careful planning is important for the initial project phases. A fixed budget or a flexible time-and-materials model enables quick results and a gradual adjustment of the project based on initial successes.

Reasons for Replacing Old Systems

  • Competitive Pressure: To remain competitive, companies must be agile and innovative.
  • Technological Progress: New technologies offer better solutions for existing problems.
  • Loss of Know-how: Employees who have maintained the software leave the company. This often results in the loss of valuable knowledge.
  • Lack of Flexibility: Outdated systems are often inflexible and cannot easily adapt to new business requirements.
  • Customer Demands: Customer expectations are rising and require modern, user-friendly systems.
  • Lack of Support: Old technologies often no longer have official support, which makes troubleshooting and maintenance difficult.

The Replacement of a Delphi Software

  • 1. Update to the latest Delphi version

    It often makes sense to first update to the current Delphi version to create a stable starting point for the replacement.

  • 2. Modularize and encapsulate internal logic

    Parts of the internal logic can be encapsulated in DLLs, which allows for the later reuse of individual components in other technologies.

  • 3. Maintain the existing database structure

    In a first step, the existing database is often kept to simplify the transition and reduce complexity.

  • 4. Divide the software into modules

    By dividing the software into modules, e.g., by business logic or technical criteria like interfaces, the replacement process becomes more flexible and manageable.

  • 5. Define the target architecture and migration path

    A clear target architecture and a well-thought-out migration path prevent a "big bang" and ensure a controlled, step-by-step transition.

  • 6. Plan the sequence of module replacement and set a timeline

    In this step, we define the order in which the modules will be replaced and create a rough timeline to specifically control progress.

  • 7. Implement in a step-by-step manner

    Together and in close coordination, we implement the replacement in clearly defined steps, either in one or multiple projects, to minimize risks and ensure flexibility.

At the end of this process, you have modern and maintainable software that meets today’s technical and business requirements. The new architecture makes it easy to make adjustments and enhancements. Through modularization and the structured transition, business operations remain stable, and downtime is minimized.

In addition, the software can be better connected to other systems and utilizes current technologies for higher performance, security, and scalability. Your company now has a future-proof platform that supports ongoing operations and offers room for innovation.

Frequently asked questions

  • How long does a Delphi migration take?

    The duration depends on the scope of the application. Small projects can be completed in a few months, while complex systems can take over a year. It is important that operations continue during this time and that gradual improvements are immediately noticeable.

  • Which technologies are suitable for migrating from Delphi?

    In addition to Delphi, modern languages and platforms are used, including .NET, Python, Docker, PostgreSQL, Azure, and Kubernetes. Depending on the requirements, we decide which technology offers the best mix of stability, future-proofing, and cost.

  • Will my application remain available during modernization?

    Yes. Delphi applications continue to run during analysis, stabilization, and migration. We plan updates so that production processes remain stable and no downtime occurs. Critical systems are tested in parallel before new versions go live.

  • Can existing Delphi code continue to be used?

    In many cases, yes. Refactoring and code reviews allow existing modules to be secured, documented, and reused. This stabilizes the application and at the same time creates a roadmap for the gradual transition to modern technologies.

  • How much does Delphi modernization cost?

    The costs depend on size, architecture, and dependencies. In most cases, a step-by-step approach with clear priorities is worthwhile in order to manage risks and budget transparently.

  • What are the risks of Delphi modernization?

    Typical risks include data loss, downtime, or rising costs due to unexpected dependencies. These risks can be minimized with thorough analysis, test environments, and step-by-step migration.

  • How do I find the right Delphi partner?

    Look for experience with industrial projects, verifiable references, certifications such as ISO 27001, and technical expertise in Delphi and modern technologies.

Modernize Your Delphi Software Now!

Utilize the stability of your existing application and combine it with modern technology for greater security and efficiency.

  • Clear roadmap for maintenance, stabilization, and modernization
  • Individual recommendations for manufacturing, production, and other industries

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Do you have any questions? Would you like to find out more about our services?
We look forward to your enquiry.

Sofia Steninger

Sofia Steninger
Solution Sales Manager