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Showcases

Implementation examples for current IT topics

How we approach problems – as traceable code, not as a glossy case study. Each example tackles a concrete technical question and shows one possible solution, openly available on GitHub.

github.com/SCC-Informationssysteme-GmbH/demos-public
Showcase

spring-n8n-demo

An order process where n8n handles the workflow logic: orders above €500 trigger an approval request via Slack, while smaller amounts are approved automatically. Shows how a Spring Boot backend can integrate cleanly with a low-code workflow engine and chat notifications.

Spring Bootn8nSlackREST
Showcase

spring-ai-demo

Six typical building blocks of LLM integration with Spring Boot, each as its own channel: simple REST-based chat, prompt templates, retrieval-augmented generation, integration with a vector database (Qdrant), LangChain4j with session memory, and AI-assisted business logic for ticket classification.

JavaSpring BootRAGLangChain4jREST
Showcase

spring-t23d-demo

A web application that turns text prompts into FreeCAD code via OpenAI, renders them into an STL file in a sandboxed Docker container, and displays the result directly as a 3D model in the React frontend.

JavaSpring BootReactOpenAI APIDockerFreeCAD
Showcase

spring-tts-demo

A lightweight Spring Boot service that accepts text via a REST endpoint and converts it into audio using the OpenAI text-to-speech API. Shows how an external TTS API can be integrated cleanly into a Java backend to automate voicing text content.

JavaSpring BootText-to-SpeechOpenAI TTS APIREST
Showcase

jee-bpel-demo

A BPEL process on Apache ODE, embedded in a Jakarta EE application (WildFly): orchestrates three approval paths – automatic, manual review, manager with escalation – including correlation sets, pick/onAlarm, and compensation. Shows Jakarta EE 10, JPA/Hibernate, CDI, EJB, JMS, REST/SOAP, and BPEL working together, entirely local via Docker with no license costs.

JavaJakarta EEBPELApache ODEJMSSOAPJSF

More to come

New topics are added continuously as separate repos in demos-public – e.g. from cloud migration or system integration.

Further reading

Official documentation for the technologies used in our showcases – useful if you're exploring them for the first time.

Languages & Frameworks

  • dev.java ↗Official Java developer portal with tutorials and language reference.
  • Spring Boot ↗Official documentation for the Java framework behind most of our showcases.
  • Apache ODE ↗Open-source engine for executing BPEL processes, embedded in Jakarta EE applications.

AI & LLM Integration

  • Spring AI ↗LLM integration, function calling and RAG for Spring Boot applications.
  • LangChain4j ↗Java library for LLM applications with chat memory and tool integration.
  • OpenAI API ↗Reference for the OpenAI API covering chat completions, function calling and code generation.
  • Qdrant ↗Open-source vector database for semantic search and RAG.

Cloud & Platforms

  • Microsoft Azure ↗Documentation on Azure services for cloud migration and operation.
  • AWS ↗Documentation on Amazon Web Services for cloud migration and operation.
  • Docker ↗Documentation on containers and Docker Compose for isolated, reproducible execution environments.
  • Kubernetes ↗Container orchestration for deploying, scaling and operating distributed applications.
  • OpenShift ↗Red Hat's enterprise Kubernetes platform with an integrated build and deployment workflow.

Automation

  • n8n ↗Workflow automation with visual nodes, e.g. for approval and notification processes.

LLM Providers

  • OpenAI ↗Provider of the GPT models and the API used e.g. in the spring-t23d-demo showcase for code generation.
  • Anthropic ↗Provider of the Claude model family for chat, code generation and agents.
  • Google DeepMind ↗Provider of Google's Gemini model family.
  • Mistral AI ↗European provider of open and commercial language models.

Let's talk.

Tell us about your project – we'll get back to you shortly.

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