A Runtime Resource is a Blue Prism software instance installed on a physical or virtual machine that is dedicated to executing automated processes. This component is commonly referred to as a "Digital Worker." It operates non-interactively (unattended) to run the business processes that have been designed and configured in the Blue Prism development environment. The Runtime Resource logs into target applications, manipulates data, and performs tasks just as a human user would, but under the automated control of the Blue Prism platform.

A. This describes a Blue Prism Interactive Client, which is the interface used by developers and process controllers for building, testing, and managing processes, not for unattended execution.

C. This describes the role of the Blue Prism Application Server, which acts as a central communication broker between all other Blue Prism components and the database.

D. This describes the Blue Prism Database Server, which is the SQL Server instance that hosts the environment's database, storing process configurations, logs, and queue data.

1. Blue Prism Enterprise V7.2 Online Help, "Blue Prism components - Runtime resource": "A runtime resource is a computer that runs automated processes. It is often referred to as a digital worker. A runtime resource can be a physical or virtual machine." This source directly defines the Runtime Resource as the machine that runs processes, aligning with option B.

2. Blue Prism - Enterprise Architecture & Deployment Guide, Section 2.1 "Blue Prism Components": This guide details the architecture, stating, "Runtime Resources – Often referred to as Robots or Digital Workers, these are the resources that execute the configured Processes." This confirms the terminology and function described in option B.

3. Blue Prism - Infrastructure and Installation Guide v7, Section 1.2 "Blue Prism Architecture": The guide's architectural diagram and descriptions clearly distinguish the Runtime Resource from other components. It specifies that Runtime Resources are responsible for "executing processes," while Interactive Clients are for "development and control," and the Application Server handles "connectivity." This supports the exclusion of options A, C, and D.