An activity is a specific action or task performed within the workflow. It represents a functional unit of work that contributes to the overall process.

In Orchestrator, an argument is a value or variable that is passed into a workflow or activity when it is called. These arguments provide input to the workflow / activity, enabling it to perform specific tasks or computations based on the provided data.

In Orchestrator, a variable is a fundamental concept used to store and manage data. A variable is a symbolic name or identifier associated with a specific field where a value can be stored, retrieved, or manipulated. These values can represent various types of data, such as numbers, text, or complex data structures. Variables are essential for working with data and performing operations in a program.

A workflow is a visual representation of a sequence of interconnected nodes or blocks (activity) that perform specific functions. It allows users to create and automate complex tasks or processes by visually connecting nodes to define the flow of data or actions. Workflows in software help streamline development, automate tasks, and facilitate the efficient execution of processes.