Glossary

Terms

Agent / Hub

A monitoring service deployed at a customer site. Runs headless (no UI) and communicates with the cloud via gRPC. Also referred to as a "hub" in the UI.

CDC

"Cyviz Device Controller" — the internal project namespace for the monitoring engine and agent codebase.

Control Plane

Cloud service that manages agent lifecycle — registration, configuration push, command dispatch, and health monitoring.

Easy Server

The core backend platform providing configuration management, user/permission system, and multi-tenant infrastructure. Shared with other Cyviz products.

Effective Configuration

The runtime configuration for a device instance, computed by merging template defaults with instance-specific overrides.

FIFO Outbox

The agent's local queue for telemetry. Events are persisted to disk and sent in strict order, guaranteeing delivery even during connectivity loss.

Instance

A specific physical device, configured by overriding a template with site-specific values (IP address, room assignment, etc.).

IPC (Inter-Process Communication)

The communication channel between the agent core and plugin host processes. Uses named pipes (Windows) or Unix domain sockets (Linux).

Monitoring Server

Cloud service responsible for telemetry analytics, alert evaluation, and historical data storage. Exposes a GraphQL API for dashboards.

MTTA / MTTR

Mean Time to Acknowledge / Mean Time to Resolve — key metrics for measuring alert response performance.

Namespace

Hierarchical path organizing resources within a tenant (e.g., England.London.HQ.Floor1.Boardroom).

Plugin Host

An isolated OS process that runs a device-type plugin. Communicates with the agent core via IPC.

Property

An observable value on a device (e.g., power state, input source, temperature). Properties can be polled or event-driven.

Template

A reusable device configuration defining properties, traits, and communication settings. Instances inherit from templates.

Tenant

An organization in the platform. All data, users, and configurations are scoped to a tenant.

Trait

A built-in device capability (e.g., power-controllable, input-switchable). Traits have locked-down configuration defined by the template.

Telemetry

Data sent from agents to the cloud — device state changes, property updates, heartbeats, and alert triggers.