All of TBM — flexed to how you run, wired into everything else.

“What does technology cost the business — and can every dollar be explained?”

Every layer of the TBM taxonomy — cost pools, technology resource towers, solutions and consumers — and every TBM practice, from cost transparency and showback to benchmarking, planning and value. Dotwork runs it on the same model as strategy, budgets, the portfolio and the architecture, so the numbers are reconciled to the ledger and actually change decisions. Keep your own names and rules. Move to the next taxonomy version by remapping, not rebuilding. And run FinOps, FOCUS, capitalization and the rest of your frameworks on the same records.

Runs in

Covers

IT spend taxonomy

The pressure

The taxonomy is right. The plumbing behind it is not.

Most TBM programs stall in the same place. Allocation rules live in a specialist tool, the mapping from the ledger is rebuilt every quarter, and the business receives a showback report it cannot question. TBM becomes a reporting exercise instead of a way to decide what technology is worth.

What it looks like today

  • Allocation rules only one analyst can explain
  • The general ledger re-mapped to towers every quarter
  • Showback reports business units dispute or ignore
  • Unit costs that never reach a funding decision

Full coverage

Every layer of the taxonomy. Every TBM practice.

Nothing is left to a spreadsheet on the side. Each element of TBM has a home in Dotwork, on the same model as the rest of the business.

Built for TBM Taxonomy 5.0

Finance layer

How finance sees technology spend.

  • Cost pools and sub-poolsLedger lines mapped once in Cost Allocation
  • Operating and capital spendKept apart from the ledger through to the plan
  • Labor — spend and headcountWorkforce & Labor, both measures, never added
  • Depreciation and amortizationSchedules run at every close

Technology layer

How IT sees its resources.

  • Technology resource towersEvery allocated dollar carries its tower
  • Sub-towersIncluding data, risk & compliance and IoT
  • Unit costsOptimize IT, against target and industry ranges
  • Cloud and SaaSCloud Spend Optimization, in the same towers

Solutions layer

What technology delivers.

  • Solution types and categoriesApplications and services on the model
  • AI solutionsAI Token Economics feeds the AI solution type
  • Total cost of ownershipOwn the Cost, by application and capability
  • Application portfolioEnterprise Architecture, with cost on every app

Business layer

Who consumes technology, and what for.

  • Consumers and business unitsEach with the bill it receives
  • Bill of ITBill the Business, tied to the reconciled total
  • Showback and chargebackShowback first, chargeback when trusted
  • Business capabilitiesCost by capability, across every layer

TBM practices

What a TBM office actually does.

  • Cost transparencySee the Spend and Trust the Numbers
  • Consumption accountabilityBill the Business and Cloud showback
  • BenchmarkingUnit costs against industry ranges
  • Planning and forecastingBudgeting & Forecasting, by tower

Value and decisions

Where TBM changes what happens next.

  • Run, grow, transformSpending mix planned against actual
  • Investment decisionsStrategic Portfolio Management, on the same cost
  • Value realizationTransformation Management: planned, proven, banked
  • Board reportingReadouts drafted from the reconciled book

What changes

What changes.

TBM as a quarterly reporting cycle

TBM as a live view over the same model as strategy and delivery

Allocations nobody outside IT finance can trace

Every allocated dollar traced back to the ledger entry it came from

Showback the business disputes

An itemized bill of IT, explainable line by line

Unit costs reported, then forgotten

Unit costs beside the funding and portfolio decisions they should change

The TBM report the business reads

From a ledger line to a bill a business unit accepts.

Follow one dollar from the general ledger through cost pool and tower to the solution and the business unit that consumed it. Change an allocation rule and every view — the bill of IT, the cost of a capability, the board pack — updates from the same numbers.

Where other tools stop

Dedicated TBM tools stop at the allocation. The bill goes out as a PDF and the decision happens somewhere else. Here the allocation, the bill and the funding decision share one model.

Flexed to how you run

The standard where it helps. Your way where it matters.

TBM is a reference, not a cage. Start from the standard taxonomy and shape the last mile to how your company actually works — without losing the ability to compare.

Your names, the standard underneath

Rename pools, towers and solutions to match your chart of accounts and service catalog, while the standard mapping stays intact for benchmarking.

Rules finance can read

Allocation rules and drivers are visible and editable by finance — no specialist required to change the model.

Adopt one layer at a time

Start with cost transparency on the finance layer and add towers, solutions and consumers as the data and the appetite grow.

Book and consumption, held apart

Run allocations on what was booked and on what was consumed for the same period, side by side and never added.

The next version, without a migration project

TBM changes. Your history doesn’t break.

When the TBM Council publishes a new taxonomy, Dotwork updates the reference model and proposes how each of your records moves. You approve the changes; prior periods keep the mapping they were reported on.

Towers renamed Technology Resource Towers

Relabeled across every view — mappings and history untouched

Cost pools reworked for a finance audience, with operating and capital spend separated

Pools remapped from the ledger, with operating and capital spend carried through to the plan

Labor treated as both a spend-based and a headcount-based pool

Workforce & Labor supplies both measures, compared and never added

New towers for data, risk & compliance and IoT

Towers added, with mapping rules proposed for the spend that belongs in them

A new AI solution type; the Platform solution type retired

AI spend from AI Token Economics lands in the AI type; platform solutions are re-homed under delivery and infrastructure, each move proposed for approval

AI-native TBM

AI does the TBM busywork. Finance keeps the pen.

The parts of TBM that used to need a specialist — mapping, tying out, chasing variances, re-mapping for a new taxonomy — happen behind the scenes. Dotwork proposes; a finance owner approves; every change is logged and reversible.

Mapping Suggester

New data source

Proposes cost pool and tower mappings for new ledger lines, vendors and accounts, each with a confidence score.

What you get
Proposed mappings ranked by confidence
Where you decide
Finance approves; it never changes a mapping on its own

Value Matcher

Every month

Resolves vendors, accounts and cost centers from decisions you already made, so each month needs fewer decisions than the last.

What you get
Mapped lines, with only what is new queued
Where you decide
Finance confirms each new mapping once

Conservation Monitor

Every allocation run

Checks that every dollar was placed or named as fallout, and scores coverage and confidence across the model.

What you get
The residual and the fix for each fallout item
Where you decide
Owners clear their fallout

Taxonomy Version Mapper

New TBM version

Compares your mappings with the new taxonomy and proposes how each pool, tower and solution should move.

What you get
A change set for the new version, with history preserved
Where you decide
The TBM office approves every move

GL Trace

When a number is off

Sorts the ledger lines behind a variance by cause and names the owner, with the explanation drafted.

What you get
A cause-by-cause trace
Where you decide
The owner confirms the explanation

Bill of IT Builder

Every close

Drafts each consumer’s bill of IT and the TBM readout from the reconciled book.

What you get
Bills and readouts that tie to the total
Where you decide
Finance reviews before they go out

How it compares

Everything a TBM suite does — and the frameworks around it.

TBM and ITFM suites cover the taxonomy after a long implementation. Spreadsheets and BI cover what the suite can’t. TBM on Dotwork covers the whole framework, flexes to how you run and connects it to the rest of the operating model.

CapabilityTBM & ITFM suitesSpreadsheets & BITBM on Dotwork
Every layer of the TBM taxonomyPartly
Bill of IT, showback and chargebackPartly
Unit costs and benchmarksPartly
Your own names and rules on the standard underneathPartly
Move to the next taxonomy version without a rebuildPartly
Every dollar reconciled to the ledger, fallout namedPartly
AI that proposes mappings for approvalPartly
FinOps, FOCUS, capitalization and asset management on the same recordsPartly
Wired to budgets, the portfolio, architecture and strategy

Who it is for

Who opens it, and what they ask.

CFO

“Does the TBM total tie to our books, and can you explain any dollar in it?

CIO

“What does each solution cost to run, and is it worth what we pay?

TBM office

“How do we stop rebuilding the allocation every quarter?

Business unit leader

“What am I being charged for, and what would change it?

Enterprise architect

“Which applications cost the most for the capability they support?

FinOps lead

“How does cloud spend land in the same towers as the rest of IT?

Before you buy

Three questions to ask any TBM platform.

How to get a number instead of a pitch.

1

“Show me one allocated dollar traced back to its ledger entry.”

Good answer · One click from the bill line to the original transaction.

Bad answer · An export to a spreadsheet so someone can explain it later.

2

“What happens to costs you cannot allocate?”

Good answer · They are shown and labeled, with the data that is missing.

Bad answer · They are spread across everyone so the totals look tidy.

3

“How does a TBM number change a funding decision?”

Good answer · Unit costs sit beside the budget and portfolio they affect.

Bad answer · It goes into the quarterly deck.

Finance & Cost

The standards finance and IT finance use to say what technology costs and who uses it.

The model underneath

Every module makes the next one smarter.

Steer, Fund & Optimize and Govern & Deliver all read and write the same Enterprise Operating Model. The first module you license builds the model. Every module after it adds context instead of another silo — and Dotwork AI reads all of it, stopping where the decision is yours.

See the Enterprise Operating Model

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