Requirements by Tier

The application is deployed on multiple Tiers:

• Tier 1, Desktop

• Tier 2, Web/Business Application Server

• Tier 3, Database Server

Tier 1, Desktop: Software and Hardware Requirements

The following section outlines the client side hardware requirements for Oracle Utilities Customer Care and Billing:

Configuration	Processor	Memory (RAM)	Storage	Monitor (Display)
Minimum	2 gigahertz (GHz) or faster with 2 or more cores *	8 GB **	128 GB or higher ***	Refer to Redwood Large resolution (currently 1024px)
Recommended	3 gigahertz (GHz) or faster with 2 or more cores *	16 GB **	250 GB or higher ***	Refer to Redwood Large resolution (currently 1024px)

* or comparable processor

** more RAM may be needed for more graphic intensive application features such as WAM's GIS Viewer or CM Portals that contain numerous graphs

*** to support browser caching

Note: The hardware requirements listed above are based on running the application only, and without any additional software running concurrently. If your client setup requires other software running, please adjust the requirements to account for them.

Web Browser Requirements

The web browsers listed below are supported when used on each of the operating systems indicated:

Browser	Windows Operating System
Mozilla Firefox ESR 128.x	Microsoft Windows 11 (64-bit)
Microsoft Edge for Business 81+ (Edge Chromium)
Google Chrome Enterprise 81+
Apple Mobile Safari	Apple iPad iOS 18.x

Tier 2, Web/Business Application Server: Software and Hardware Requirements

Refer to the Supported Platforms section in this chapter to determine which web application servers can be used with the operating system that will be hosting this tier.

The recommendations that follow are based on a standard installation with both the web application and business application servers on the same machine and the system running with the default values. The default values may not support a production environment. You should adjust these values according to your production needs. Refer to the Server Administration Guide on how to change the default values. The minimum resource requirements exclude third-party software installation requirements. Refer to the third- party vendors for specific requirements. The sizing excludes the Oracle database server installation.

Tier 3, Database Server: Software and Hardware Requirements

Refer to the Supported Platforms section in this chapter for information about supported database servers.