The Guidewire Cloud Platform (GWCP) uses an astronomy-based taxonomy to organize its cloud-native architecture. This metaphor defines the boundaries for security, data sovereignty, and administrative isolation.

A Tenant is the highest level of isolation for a specific customer within a region. However, a single tenant can be subdivided to represent different business units or functional areas. This is where the Star comes in. According to Guidewire ' s Cloud Architecture standards, a Star represents a distinct business unit or shared service (Option D). Each Star is architecturally kept completely separate from other Stars within the same Tenant (Option B). This means that different business units can have their own independent configurations and data while still existing under the same corporate " Tenant " umbrella.

To further understand the hierarchy:

Galaxies represent the physical AWS regions (e.g., US-East, EU-Central). They do not isolate planets; they define geographical location.

Planets are the actual environments (e.g., a specific Dev environment or a Prod environment) where applications run.

Orbits represent the " lifecycle stage " or promotion path (e.g., the Dev Orbit contains multiple development planets).

By providing isolation at the Star level, Guidewire allows insurers to manage complex organizational structures without data leakage between business units, ensuring that a " Claims " business unit can operate independently from a " Policy " unit if they are configured as separate Stars. This logical partitioning is essential for scaling large, multi-faceted insurance operations on the Cloud.

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