When taking over an existing software project, it is rarely just a single password that is missing. Responsibilities, environments and assumptions are often incompletely documented. A structured handover prevents technical uncertainty from flowing into ongoing operation or new development.
Secure source code and workflows
What is needed: repositories, branch and release conventions, build instructions, dependencies and an overview of open pull requests and tickets. It is also important to know which version is currently in production.
A reproducible local start and a documented deployment path show whether the project can actually be handed over. Missing steps are recorded during the takeover and not silently guessed.
Capture infrastructure and environments
A technical inventory includes hosting, domains, DNS, certificates, databases, backups, monitoring and external services. For development, test and production, it should be clear where each environment lives and how changes get there.
After the handover, credentials, SSH keys and API tokens are rotated, and access that is no longer needed is revoked. Roles, owners and secure handover channels are documented; credentials belong in a password manager rather than in unencrypted documents.
Review functional and legal information
Besides the code, a functional specification, data model, integration description, acceptance criteria and known limitations are needed. Implicit business rules in imports or manual work steps in particular are often decisive for a takeover.
Rights of use for source code, licences, domains, media and data must also be clarified. The domain holder and the registrar must be clearly established; these points belong in the takeover documents because they can limit future development.
Complete the handover with a controlled test
A joint walkthrough of the most important business processes validates access and documentation. This includes login, the core transaction, interfaces, error handling and restoring from a backup, as far as possible within the agreed scope.
The result is a prioritised risk list, clear contacts and a short-term stabilisation plan. Only then should further development with new features begin.
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