1E Catalog is a prerequisite for installing the SLA components of Tachyon. SLA uses 1E Catalog to normalize or match source inventory information, for example software devices and processors.

1E Catalog allows you to:

• Have a consistent view of your estate
• Uniquely identify software products deployed in your estate
• Identify device types (laptop, desktop, virtual machine), operating system, device family, device manufacturer and maximum number of processors
• Normalize processor information like processor model, processor family, vendor name, and number of cores of processors running on your devices
• Define and apply bundling rules to identify suites and their components
• Define and apply entitlement rights, such as  version upgrade/downgrade, edition downgrade, and software assurance rights which are used during license demand and compliance calculations
• Apply autofill entitlement information using software SKU.