Not a consultancy that recommends and leaves — SIer consulting.
ITSN, Inc.'s consulting is distinguished by this: the person who owns the upstream — vision and requirements definition — is responsible through to the outcome of the implementation phase.
We hand over current-state analysis, grand design, and requirements definition as
tangible deliverables — an assessment report and design documents,
then move into hands-on support once agreed, and on into implementation.
Large-scale build and operation may be delivered together with partner companies, but ITSN, as the requirements owner, sees the customer's goal through to the end.
Does any of this sound familiar?
You want to hand off the upstream work — but not the cost of "just being there"
We want to map out our IT-wide picture and investment plan, but have no one in-house to own the upstream work
We want a consultant for requirements definition, but the results are hard to see and we worry about cost-effectiveness
We get recommendations, but implementation goes to a different company — design and reality end up disconnected
We want to move forward with DX but can't figure out where to start
Upstream work is a critical investment that determines whether a business initiative succeeds. At the same time, we often hear the anxiety that
"all we see is billed hours piling up, with little clarity on what actually remains in hand."
We resolve this anxiety structurally, by making the entry point a tangible deliverable,
and by having the people who proposed and defined the requirements stay responsible through to the outcome of the implementation phase.
02 / OUR ANSWER
ITSN's Answer — A Deliverable-Based Entry Point × Responsibility Through to Goal Realization
We don't stop at proposing — consulting only an SIer can deliver
Typical quasi-delegation consulting
Recommend, then leave
Fees accrue against hours worked, and the shape of the deliverable is hard to see.
You receive recommendations, but implementation goes to a different company,
and the design intent doesn't always reach the people building it.
ITSN's consulting
Design it, then build it as-is
The entry point is a clear deliverable (fixed fee) — an assessment report and design documents.
What you'll end up with is clear from the start. What's more, the same ITSN that drew up the vision and requirements
stays responsible and sees it through to the outcome of the implementation phase (large-scale build and operation are delivered together with partner companies).
Two mechanisms that structurally eliminate the cost of "just being there."
(1) Making the upstream entry point a deliverable-based fixed-fee contract ties cost directly to output.
(2) The person who proposed and defined the requirements bears responsibility for the customer's goal realization through to the outcome of the implementation phase, removing the disconnect between proposal and the field.
These two points are the core of the consulting that only ITSN (an independent SIer) can provide.
03 / THREE PILLARS
The Three Pillars of Consulting
The theme axis — "what we address," from management strategy to technical foundation
The three pillars represent the theme axis — "what we address" in our consulting.
Each area has its own entry-point assessment & design menu (deliverable-based), so you can also start small, in just the area you need.
("How we proceed" — the progress axis — is set out in the next 3 phases.)
PILLAR 01
IT Strategy & Grand Design
We map the IT-wide picture from a management perspective. From a current-state inventory to an investment plan,
overall system vision, and roadmap, we help management and frontline teams work from the same map.
Entry menu: IT current-state assessment report / Grand design document
PILLAR 02
Business Requirements & DX Design
We untangle your business operations and translate the "target state" into concrete requirements.
We organize siloed processes and fragmented data, and design DX initiatives with clear priorities.
We design the architecture of your technical foundation. We draw up a configuration covering network,
cloud, and security in an implementable form, backed by ITSN's own infrastructure build track record.
The 3-Phase Hybrid Model
The progress axis — clarifying contract type and deliverables by "how we proceed"
In any of the 3 pillars (theme axis), we proceed through these 3 phases (progress axis).
By making the entry-point "assessment & design" phase a deliverable-based fixed-fee contract, cost is tied directly to output — so you start from ①.
Once trust is established, we move into ② hands-on support, and then ③ implementation. At each phase, we make clear
the contract type and the value you receive.
A clear deliverable — an assessment report and design documents. Cost is tied to output, so what you'll end up with is clear from the start.
PHASE 02
Hands-on Support
Quasi-delegation contract
Scope
Program-driving support / Decision-making support / PMO-style involvement
Deliverables & value
Hands-on support once Phase 01 has established trust and a shared blueprint. With clear objectives, effort translates directly into results.
PHASE 03
Implementation
Contract work
Scope
System construction built exactly to the design (delivered by ITSN, or under ITSN's management together with partners)
Deliverables & value
The person who proposed and defined the requirements is responsible through to the outcome of the implementation phase. Large-scale build and operation may involve partner companies, but the requirements-owning ITSN manages that too and sees the customer's goal through.
In any pillar, you can start from Phase ① (Assessment & Design) on its own.
Because the entry point is deliverable-based, you can start with low risk. Whether to proceed to Phase 02 or 03
is a decision you can make after reviewing the initial deliverable. Implementation may be delivered by ITSN or,
depending on scale, together with partner companies — in every case, the requirements-owning ITSN sees the result through.
05 / ENTRY MENU
Sample Entry Menu (Deliverable-Based)
A fixed-fee deliverable menu you can start with "just an assessment"
These are sample assessment & design menus for the entry point of each pillar. All are envisioned as a
fixed-fee contract that delivers a clear deliverable.
Names, scope, and pricing are designed to fit individual requirements.
PILLAR 01 / IT Strategy & Grand Design
IT Current-State Assessment & Grand Design
We take stock of your current systems, structure, and costs, and design the target-state picture and an investment roadmap.
JPY 700,000–5,000,000(excl. tax, indicative / varies by scale)
* All amounts above are indicative, in Japanese yen and excluding tax. They vary depending on
the scope, the granularity of the deliverable, and the state of your existing environment. Final pricing is
quoted individually after confirming the scope. We're happy to start with just an assessment.
06 / END-TO-END
See the Customer's Goal Through — Owned by the People Who Hold the Upstream
Build & operation delivered with partners; ITSN, as requirements owner, is accountable for the result
Consulting
Strategy & assessment (ITSN)
Requirements
Requirements definition & grand design (ITSN)
Implementation
System construction (ITSN / Partner)
Operations
Maintenance & operations (ITSN / Partner)
ITSN owns the upstream (consulting & requirements definition); implementation and operations are delivered with partner companies where scale or specialty calls for it. In every phase, the requirements-owning ITSN manages through to completion.
What ITSN is responsible for is the outcome through the upstream-to-implementation phase — that is, the realization of the customer's goal.
Implementation and operations may, depending on scale or specialty, be delivered together with capable partner companies.
Even then, the requirements-owning ITSN manages that work too, and stays responsible through to seeing the final goal realized.
Not "mere completion" — we see the goal through to realization.
Because the people who own the upstream stay alongside the work to the end, there's no burden of re-explaining background every time you cross a phase boundary.
Being able to draw on partner companies' capacity for implementation and operations is a strength — the flexibility to respond even to large-scale projects.
We also coordinate with system integration and managed services.
07 / FOR WHOM
Who This Is For
Whether you want to "start with just an assessment" or "hand off the whole upstream phase"
New clients
Want to start small and low-risk, with just an assessment
Even if committing to a large contract right away feels risky, you can start small with a deliverable-based
assessment & design menu. After reviewing the first deliverable (assessment report and design documents),
you can decide whether to move on to the next phase.
Existing clients
Want to hand off the whole upstream phase for end-to-end delivery through implementation
If you already work with ITSN on implementation or operations, you can hand off upstream design for fully
end-to-end delivery. A team that already knows your environment takes on the upstream work, eliminating
the disconnect between design and implementation and optimizing the whole.
08 / CONTACT
Start by talking to us about an "assessment"
"We want to figure out where to start" — "We're looking for a partner we can hand the upstream work to" —
we welcome inquiries at this stage. With our deliverable-based assessment & design menu, you can take a low-risk first step.