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KANAGAWA
Independent product & process consulting
How I work

Four steps from a messy problem to a clear plan.

Most technology projects go wrong before anyone writes code: they jump from a problem nobody has checked to a solution nobody has tested. These four steps stop that from happening.

The shape of the work

Open up, then narrow down. Twice.

First we explore the problem widely and narrow it down to the one worth solving. Only then do we explore solutions and narrow them down to the one worth building.

DIAMOND 1 The problem 01 Problem · 02 Value DIAMOND 2 The solution 03 Solution · 04 Measure MANY OPINIONS ONE PROBLEM WORTH SOLVING ONE PLAN WORTH BUILDING
01
Phase

PROBLEM

Find the real problem

I don’t start with feature requests. I start with how the work really happens: the constraints, the bottlenecks, the workarounds and the business goals that decide what is worth building.

Questions I answer

What is really causing the problem?

Is this a software problem, or a process problem?

What happens if we do nothing?

Tools I use
User and stakeholder interviews Persona workshop Process mapping Review of existing research
What I look at
Root causes, not just symptoms
How the work is done today, including workarounds
Technical, human and regulatory constraints
What should deliberately not be built
02
Phase

VALUE

Put a number on it

A feature nobody can put a value on is a cost, not an asset. I work out how solving the problem will pay off: saved time, lower cost, reduced risk, more revenue or better adoption. This becomes the Value Impact Map.

Questions I answer

How does fixing this affect revenue or cost?

How quickly should it pay for itself?

Which numbers will show it worked?

Tools I use
Value Impact Map North Star metric Baselines Business case
What I look at
Time and cost savings in daily operations
Revenue and competitive advantage
Faster processes and higher throughput
Compliance and risk reduction
03
Phase

SOLUTION

Choose the smallest change that works

The best answer is rarely just new screens. I find the smallest change that delivers the value, whether that’s a process redesign, a workflow change or a new digital product.

Questions I answer

What is the smallest change that delivers most of the value?

What should we deliberately not build?

How does it fit with the systems you already have?

Tools I use
Story mapping MVP prioritisation workshop Process flows and mockups Assumption tests
What I look at
Future workflows that are simpler than today’s
A clear, scoped blueprint for what to build
Interactive mockups to test with real users
A delivery plan your engineers can trust
04
Phase

MEASURE

Agree how you’ll know it worked

Delivery isn’t the finish line. Before anything is built, we agree which numbers will show it worked and how to track them, so your team can measure the result long after my part is done.

Questions I answer

Will people actually choose to use it?

Will the process really get faster?

What should we watch for once it’s live?

Tools I use
Success metrics Baseline vs target A metric per roadmap item Now / Next / Later roadmap
What I look at
Task completion and where people drop off
Process speed and throughput
Adoption and continued use
Business impact against the starting point
The method in practice

DEFINE: from idea to plan in two weeks

Think of it as a Sprint 0 that focuses on business value, not on starting the build. Six steps, each building on the last.

01

Know your users

Interviews and a persona workshop: who your users are, what they need and what they don’t want.

02

Map the ideas

Everything you could build, written as user stories and laid out along the user journey.

03

Value Impact Map

Business goals linked to measurable outcomes: the North Star that drives every priority.

04

Scope the MVP

The least you can build for the most impact, plus a clear list of what not to build yet.

05

Flows and mockups

The key workflows mapped and made visible, so risks show up before anyone writes code.

06

Roadmap

Features placed in order, with dependencies mapped and a success metric on each.

Built on proven practice

Nothing exotic. Just the right tools, used together.

The method draws on established product and design practices, combined so that every step stays tied to business value.

Double Diamond

Explore widely, then narrow down: first on the problem, then on the solution.

Continuous Discovery

Start from outcomes, learn from real user stories, and test the riskiest assumptions early.

Impact Mapping

Link business goals to the people whose behaviour must change, and only then to features.

User Story Mapping

Lay out the whole user journey, then slice the smallest release that works end to end.

Agile

Short cycles, and a plan the delivery team can pick up straight away.

“Good product design isn’t just designing screens. It’s designing the path from problem to value.”

Talk to me about your project