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Mapping the enterprise systems landscape

One connected model of the estate, grounded in HERM v3.2.0, presented from many views.
Purpose: spot overlaps and gaps, prioritize recovery, and support investment planning.

Joe Sabado · Sept 2026

Enterprise architecture — connects business, data, applications, and technology

Business layer
Lifecycles

constituent journeys — student, faculty, researcher, staff

Capabilities

what the institution does — stays constant as systems change

Workflows

the step-by-step way work gets done
linked reference — not a required dimension

Data layer

systems of record

Application layer

the systems

Technology layer

infrastructure, hosting, recovery

▲   the four HERM models ground each layer   ▲
BRM

Business Reference Model
29 capabilities · 185 total

DRM

Data Reference Model
18 topics · 80 entities

ARM

Application Reference Model
126 components

TRM

Technology Reference Model
8 technology domains

HERM (Higher Education Reference Models) — one reference model per layer (CAUDIT v3.2.0 · CC BY-NC-SA)

Sector standard since 2016 · used by 1,000+ institutions · curated by CAUDIT with EDUCAUSE / ITANA

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The system catalog — one connected model

Each system is recorded once against every dimension, so any dimension can become a view.

capability

what it does

data

what it's source of

application type

what kind of system

technology

where it runs

lifecycle

which journeys

data classification — how sensitive (generic 4-level + local crosswalk)
criticality / recovery tier — how urgent to restore
AI profile — none · AI-assisted · agentic
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One model, many views — pick the lens for the audience and the question

By lifecycle

everything touching the student or research journey

By capability

what supports a function, and where the gaps are

By system

what one application does and connects to

By data

where data lives and who is its source of record

By sensitivity

where the most sensitive data sits

By criticality

what must recover first if something fails

By AI

where AI already operates, at what autonomy

Coverage map

a heat map of gaps and overlaps

…and at any altitude — the same view rolls up for an executive or drills down for a technical reader

captured once at technical depth · summarized upward on demand

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Extending the model — complementary frameworks on the same spine

Each attaches to the HERM model and answers a question the core model raises but doesn't settle.

TBM

cost & value of technology

Lean Six Sigma

process performance

Journey mapping

lived experience

ITSM / ITIL

service operation

EDUCAUSE catalog

service taxonomy

NIST CSF

security posture

DAMA-DMBOK

data management

COBIT

governance over all

Reference model: CAUDIT Higher Education Reference Models (HERM) v3.2.0, December 2025, CC BY-NC-SA 4.0. Classification, criticality, and AI profile are local extensions.
Source: library.educause.edu/resources/2021/9/the-higher-education-reference-models