Extending the model

Beyond the core reference model

HERM describes what the institution runs. Other disciplines add layers on top of that same spine — cost, value, risk — each answering a question the core model raises but doesn't settle. This section collects them.

How it all fits

Every extension attaches to the same HERM spine and answers one question the core model raises. One estate, many lenses.

HERM estate model
capabilities · data · applications · technology — the shared spine
▲ every layer attaches here ▲

Tap any layer for a quick summary, or open its full page.

TBM — Technology Business Management

"What does it cost, and is it worth it?"

Adds a cost-and-value layer to the estate — pairing each capability with what it costs to run and deliver, in language the CFO and board already use.

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Lean Six Sigma

"How well does it run, and where does it break?"

Adds a performance layer to the workflow maps — cycle time, waste, and defects per step — so a process becomes a measured candidate for improvement.

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User journey mapping

"What does this actually feel like for the person?"

Adds the experience layer to the lifecycles — what a constituent thinks, feels, and struggles with at each step, beyond which systems they touch.

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ITSM with ITIL

"How do we run these as services, day to day?"

Adds the operational layer — service catalog, incidents, changes, and configuration — so the mapped estate is run with discipline once it is live.

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EDUCAUSE IT service catalog

"What service can I get, and who is it for?"

Adds a customer-facing service taxonomy — a shared, product-agnostic way to name and group IT services across higher ed.

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NIST Cybersecurity Framework

"How well is each system defended?"

Adds a security-posture layer that maps straight onto the classification and criticality already on every record.

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Data governance (DAMA-DMBOK)

"Is this data accurate, defined, and trusted?"

Deepens the data model — stewardship, quality, lineage, and master data beneath each source-of-record.

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COBIT IT governance

"Who decides what IT does, and how?"

The governance capstone — directs and monitors IT against institutional goals, and filters which frameworks to adopt.

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