A software glossary in plain English
A glossary of software, AI, blockchain, and fintech terms — written for founders and technical leaders deciding what to build next. No jargon, no hype.
Data Structure Diagram (DSD): Definition, Symbols, and Examples
A plain-language engineering reference on Data Structure Diagrams (DSD): how Bachman diagrams model records, nested attributes, and pointer relationships, and how a DSD differs from an Entity-Relationship Diagram (ERD) or Data Flow Diagram (DFD).
What Is Software Functionality? Definition, Types, and Examples
Software functionality is the sum of operations, features, and business rules a software system executes to satisfy stated and implied user needs: definition, ISO/IEC 25010 sub-characteristics, and functional vs non-functional requirements.
What is alphanumeric: character sets, validation, and encoding
Alphanumeric data consists strictly of alphabetical letters and numerical digits: how character sets work, standard regex validation patterns, encoding across UTF-8 and ASCII, and security implications.
What is bootstrapping: startup funding, economics, and trade-offs
Bootstrapping is building a company using existing resources and early customer revenue without venture capital: capital efficiency, unit economics, tech stack choices, and sustainable growth.
What is a code walkthrough: steps, checklists, and review practices
A code walkthrough is an interactive peer evaluation where a developer guides teammates through a codebase to catch defects and share knowledge: step-by-step process, checklists, and tooling.
What is a crypto faucet: testnets, mechanics, and security abuse
A crypto faucet is a web tool that distributes small amounts of tokens for testing or onboarding: how testnet faucets operate, Proof of Work protection, rate limiting, and smart contract distribution.
What is a software library: packages, frameworks, and dependencies
A software library provides reusable functions and modules that developers import into applications: how libraries differ from frameworks, inversion of control, dependency trees, and package security.
What is a runtime environment: components, types, and architecture
A runtime environment provides the execution engine and system libraries that turn compiled code or scripts into running processes: how runtimes manage memory, handle threads, and differ across engines.
API integration: how it works and what makes it hard
How API integration works: what it connects, the request and event styles behind it, how authentication and rate limits shape the design, and why a retry without an idempotency key is where it quietly stops being reliable.
What is a data pipeline: stages, patterns, and failure modes
Data moves through several distinct stages on its way from a source to wherever it gets used, picking up structure along the way: the four stages, what separates ETL from ELT, batch versus streaming, and where a pipeline quietly stops producing numbers anyone can trust.
Can't find what you're looking for?
Tell us which concept is blocking a decision. A senior engineer writes the explainer — usually within a week.