IT Glossary: Technical Terms Clearly Explained
From API to Zero-Downtime Deployment – find comprehensive explanations of terms from software development, AI, legacy modernization, and IT projects. Each term includes a definition, examples, pros & cons, and FAQ.
172 terms across 17 categories – Page 6 of 6
T
- TDDMethods
- Test-Driven Development (TDD) is a software development approach where you first write a failing test, then the minimal code to pass it, then refactor – the Red-Green-Refactor cycle.
- Technical DebtDevelopment
- Technical debt (technical debt) describes the hidden cost of taking shortcuts in software development – at the expense of long-term code quality.
- Technical Due DiligenceServices
- Systematic review and assessment of a company’s technical infrastructure, software architecture and IT organisation – typically before investments, acquisitions or partnerships.
- TerraformDevOps
- Terraform is an open-source tool from HashiCorp for Infrastructure as Code (IaC) with which cloud infrastructure can be defined declaratively, versioned and provisioned automatically.
- Time-to-MarketBusiness
- Time-to-market (TTM) is the time from the first idea to the product’s market launch. In software, short TTM is a key competitive advantage.
- Two-Factor Authentication (2FA)Security
- Two-factor authentication (2FA) is a security method where users confirm their identity with two different factors – typically password (knowledge) plus a second factor such as a one-time code (possession) or fingerprint (biometrics).
- TypeScriptTechnology
- TypeScript is a programming language from Microsoft that adds static typing to JavaScript. It improves code quality and catches errors early – especially in large projects.
- TYPO3Technology
- TYPO3 is an open-source enterprise content management system (CMS) that stands out for multilingual support, multi-site capability and high customizability for medium and large web projects.
U
- UX/UI DesignDesign
- UX (User Experience) design shapes the overall experience of an application; UI (User Interface) design shapes the visual surface. Together they make software intuitive, appealing and effective.
V
- Vector DatabaseAI
- A vector database is a specialized database system that stores high-dimensional vectors (embeddings) and enables efficient similarity search – a key technology for AI applications like RAG and semantic search.
- Vendor Lock-inArchitecture
- Vendor lock-in is when a company depends on a specific technology vendor so that switching to another would be very costly, difficult or risky.
- VPNInfrastructure
- A VPN (Virtual Private Network) is an encrypted network connection that enables secure data exchange over public networks – as if you were directly on the local company network.
- Vue.jsDevelopment
- Vue.js is a progressive JavaScript framework for building user interfaces. It combines a low barrier to entry with the power of a full framework for single-page and complex web applications.
W
- Web DevelopmentDevelopment
- Web development covers the conception, design and programming of websites, web applications and web APIs – from simple landing pages to complex SaaS platforms.
- WebhookBasics
- A webhook is an HTTP callback where one system sends a notification to a URL when a defined event occurs – real-time data exchange without constant polling.
- WebSocketTechnology
- WebSocket is a protocol that provides a persistent, bidirectional connection between client and server. Unlike HTTP, both sides can send data at any time without starting a new request.
- WhitelabelBusiness Models
- Whitelabel is software or a service developed by one vendor and licensed to others who sell it under their own brand and design to their customers.
- WiFi 6Technology
- WiFi 6 (802.11ax) is the current WLAN standard, offering significantly higher speeds, better performance with many simultaneous devices and lower power consumption than WiFi 5.
- Wireframe / MockupDesign
- A wireframe is a simplified, schematic sketch of a user interface showing structure and layout. A mockup is a more detailed visual draft with colours, typography and images – close to the final design.
- WordPressTechnology
- WordPress is an open-source content management system (CMS) and the world's most used website platform, powering over 40% of all websites – from simple blogs to complex corporate sites.
Z
- Zero TrustSecurity
- Zero Trust is a security model that does not trust any user, device or network by default – not even inside the corporate network. Every access is authenticated, authorized and continuously verified.
- Zero-Downtime DeploymentDevOps
- Zero-downtime deployment is a deployment strategy where software updates are applied without interrupting the running service – users do not notice the update.
IT Glossary – Over 100 Terms Clearly Explained
From API to Zero-Downtime Deployment – find comprehensive explanations of terms from software development, AI, legacy modernization, and IT projects. Each term includes a definition, examples, pros & cons, and FAQ.
172 terms in 17 categories – Page 6 of 6
Services & Topic Pages
Many glossary terms link to our service pages and topic pages. There you will find concrete applications, costs, and processes.
You are on page 6 of our IT glossary with a total of 172 terms from software development, cloud computing, AI, and digitalization. Each term is explained with a precise definition, practical examples, pros and cons, and FAQs. The full list of all terms is on page 1 of the glossary.
The glossary is sorted alphabetically and divided into categories. Use the letter navigation above to jump to the desired initial letter on this page. For deeper dives and concrete applications we recommend our services and topic pages.
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