XML is a data format, not a programming language. This post explains what XML is, how it works, and the five places you will still find it in SAP landscapes in 2026.
Never lost your code to a bad edit? Never wished you could just go back to the version that worked? That is exactly what Git solves. This guide explains Git, GitHub and VS Code in plain English — what each tool does, how they work together, and how to set everything up from scratch. Includes a full command reference, branching explained simply, real workflow scenarios, and answers to the most common questions developers ask. Whether you are writing your first line of code or refreshing your fundamentals, this is the guide you will come back to.
DNS translates domain names into IP addresses. This post explains how the lookup chain works, which DNS records matter and what breaks when DNS goes wrong — no jargon.
HTTPS is more than a padlock. This post goes deeper — into certificate chains, certificate authorities, TLS 1.2 vs 1.3, and the handshake that happens before any data flows.
Every time you see the padlock in your browser, HTTPS is at work. This post explains what HTTPS is, how TLS makes it secure, what a certificate actually does, and why HTTP alone is never enough — all in plain English without the cryptography deep-dive.
An API is how software systems talk to each other. This post explains what APIs are, how requests and responses work, and the REST, GraphQL and OData types you will encounter.
HTTP is the protocol behind every web page, API and SAP OData call. This post explains requests, responses, status codes and the full cycle — without the jargon.
What is a server and how does it work? This post explains CPU, RAM, storage, the client-server model and virtualisation — in plain English, no assumed knowledge.
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