CALM MIND. HIGH STANDARDS.

Aim high.
Keep a lighter mind.

Aim to build world-class software and a business that creates lasting value. Understand people, build, reach the right audience, and improve with good partners. Turn the ambition into daily practice while building both execution skills and room to think.

100NEW / THE PRACTICE COLLECTIONBuild your skills, one practical drill at a time.

Ten disciplines. Six routes. Briefs, examples, and success criteria.

01

PRACTICE

Choose one practice that fits today.

You do not need to do everything. Use time approved by your workplace, without crowding out duties or breaks. It is fine to skip practice when you have no capacity.

3 min · Reset

Find your next step

A small practice for a tiring day or an unsettled moment.

  1. Pause briefly, let your shoulders relax, and notice where you are and what is happening.
  2. Separate verified facts from predictions in your head. Do not assume you know what someone else is thinking.
  3. Choose one necessary action for the next ten minutes. An update, a check, or asking for help is enough.

Enough for today: you know one thing to do next.

10 min · Refine

Ask once. Say it back.

Give your listening and speaking skills a short, focused practice.

  1. Choose one sales or conversation example and rehearse it aloud or in your head.
  2. Imagine a reply, then summarize: “So, is [point] what matters most to you?”
  3. Try one scenario and choose one useful phrase from the explanation.

Enough for today: you have another way to check understanding.

20 min · Explore

Three approaches to one small problem

Practise the process of inventing without rushing to an answer.

  1. Choose a fictional problem with no confidential information. Describe who is affected and where they get stuck.
  2. Use three of the six invention prompts to create genuinely different options.
  3. Plan a small test, such as a paper mockup, and decide what would make you continue, change, or stop. Get approval before any workplace trial.

Enough for today: you have turned an idea into a testable question.

02

COMPOSURE

Composure means having a way back.

Your feelings can shift, and you can still choose the next action. Hold high standards alongside a kinder way of treating yourself.

Fact → interpretation → action

“I was asked to revise this” is a fact. “They have given up on me” is an interpretation. Start with the fact and choose a small response.

“The part to revise is [item], correct? Could we review it at [time]?”

Put effort where you have a choice

You cannot choose every reaction or final evaluation. You can choose preparation, questions, timely updates, and careful corrections.

Today’s question: “What action is available to me right now?”

Give reflection an ending

After the necessary apology and response, choose one preventive change. You do not need to keep reviewing the mistake throughout your time off.

Reflect on: what went well / what I learned / one change for next time.

Make high standards sustainable

Keep the ambitious goal. Adjust the amount of practice to your capacity, and include breaks and recovery in the plan.

“I will stop here for today. We can review the next part at [agreed time].”

Six skills for world-class work.

Look for actions that helped someone. Use this map to choose a practice, rather than to give yourself a ranking.

01

Reliability

Share commitments and progress.

Could the other person understand the status without chasing it?
02

Understanding

Ask about goals and difficulties.

Can I describe the problem in the other person’s terms?
03

Proposals

Explain value, evidence, and conditions.

Did they have the information needed to decide?
04

Invention

Create alternatives and test something small.

What did I learn beyond the initial idea?
05

Delivery

Agree on ownership and what done means.

Did I deliver the agreed quality by the agreed time?
06

Composure

Return to facts and a next step.

Could I keep going sustainably, with breaks and support?
03

SALES

Aim high. Speak with calm and clarity.

Build sales and communication skills for a global stage, one thoughtful question at a time. Helping someone make a sound decision can also reveal ideas for a business or an invention. For today, practicing one line aloud is enough.

01

Agree on the purpose and time

Check that now is a good time and ask what the other person wants from the conversation. If they are unavailable, it is fine to stop there.

“Would it be okay to spend [time] on [topic]? What would make this conversation useful for you?”

02

Understand how things work today

Before explaining a product, ask about one recent example. Learn what already works well, too, so you can explore whether a change is needed.

“How do you handle [task] today? Could you walk me through a recent situation that took more effort than you expected?”

03

Check the impact and priority

Ask how often the issue occurs, what it affects, and where it sits among other priorities. Leave unknown numbers unknown, and let the customer set the urgency.

“How often does [issue] happen, and what does it affect? Where does it sit among the things you want to work on?”

04

Connect the proposal to evidence

Offer an option that fits the stated need. Explain the cost, effort, supporting evidence, and uncertainty. Compare a small trial and keeping the current approach, too.

“[Option] may help with [issue]. We have evidence for [verified finding], but [condition] is untested. Would [small trial] be useful, with [cost and effort] included?”

05

Agree on one next action

If they want to proceed, confirm who will do what and by when. Pausing, declining, or ending the discussion are also valid outcomes.

“If you would like to continue, would it work for [person] to check [question] by [date]? We can also leave things here.”

Six questions to understand the need
  1. What is working well about your current approach?
  2. Could you describe a recent situation that took extra effort?
  3. How often does that happen?
  4. What would need to change for you to call this an improvement?
  5. What constraints should we respect around time, cost, and day-to-day use?
  6. If you decide to explore this, what process and information will you need?
When someone says, “It is expensive”
“Thank you for being direct. What concerns you most about [cost]? Share only what you are comfortable sharing, and we can look at [smaller-scope option] as well. If the terms do not work for you, it is fine to pass.”

Explore whether the concern is total cost, a comparison, or uncertain value before discussing a discount. Make included items and additional charges clear.

When someone says, “We do not need it”
“Understood. We will leave [proposal] here. Thank you for your time.”

Accepting a clear no is part of good communication. They do not owe you a reason, another contact, or permission to follow up.

When someone has no time
“Understood. Let us stop here for today. If you would like to revisit [topic], you are welcome to suggest [a suitable time].”

End the conversation promptly. Arrange another meeting or send materials only if they want that. There is no need to give them another task.

Making an internal proposal or negotiating terms
“To support [goal], I suggest [small trial]. We would assess it against [criteria] and keep it within [cost and time limits]. I can commit to [scope]. [Additional term] would need approval from [approver]. Could we clarify which conditions matter most?”

Set out the purpose, options, workload, and stopping criteria. Confirm your authority before promising discounts or deadlines, and make any change in scope explicit.

04

DIALOGUE

Make everyday work conversations easier

You can take a moment before responding. Practice checking one fact and saying what you need in a clear, manageable sentence.

Listen, then reflect the main point

Let the other person finish, then check your understanding in one sentence. Leave room for correction instead of assuming how they feel or what they intend.

“Have I understood correctly that [main point] is your biggest concern? Please correct anything I have missed.”

Make a specific request

State the purpose, the action you need, and the timing. Give the other person room to explain a constraint so you can adjust the scope together.

“To help with [purpose], could you review [section] of [document] by [date]? If that is difficult, could we agree on a smaller scope or a different date?”

Set a respectful boundary

Explain what you can do and where a limit applies. If someone continues speaking harshly, you can pause the conversation and seek appropriate support.

“I can complete [scope] by [date]. If [additional work] is also needed, could we adjust the priorities or the deadline?”

Give feedback someone can use

Describe what you observed, its impact, and a specific action to try next. Keep the discussion about the work and ask about the other person’s circumstances.

“During [situation], I noticed [observable action], which led to [impact]. Could we try [specific action] next time? Is anything making that difficult?”

Four English phrases for understanding and agreement

今日、何を整理できると役立ちますか?

What would be useful to work through today?

今の進め方を教えていただけますか?

Could you walk me through how you do this today?

最初に何が改善すると役立ちますか?

What would be most useful to improve first?

ここで区切りますか。それとも次の一歩を話しますか?

Would you like to stop here or discuss a next step?
05

INVENTION

Turn an idea into something you can test

Aim for work that stands up anywhere, and set a high bar for showing that it helps. Notice a small difficulty, explore alternatives, and improve your idea through testing. Practice this cycle while protecting your focus at work and room to rest.

01

Observe what happens

Go beyond “this is awkward.” Notice where someone pauses, what they look for, and how they manage to continue. Separate the behavior you can see from your explanation for it. An everyday object or a fictional scenario is enough to begin.

What was the person trying to do, and where did they get stuck? Describe the observable event in one sentence.

02

Reframe the problem

“Build an app” chooses the method too soon. Try a question such as “How could a first-time user find the right item without searching several places?” Name the person and the change you want, leaving room for different solutions.

Who needs to do what more easily, and in which situation? Could a different method also answer your question?

03

Generate different kinds of ideas

Separate generating ideas from choosing one. Consider changing a label, removing a step, or moving an object. Then choose an option by weighing its likely usefulness, the effort needed to test it, and how easily you could undo it.

What could help without building anything? What if you changed the order of actions instead of adding a tool?

04

Prototype one assumption

Choose one uncertainty and build only what you need to examine it: a paper sketch or a simple model may do. For workplace trials, get the responsible person’s approval and use fictional data in an environment separate from production. Define the scope, stop conditions, and way back.

Which assumption is least certain? What is the smallest thing you could make to learn about it?

05

Use observations to choose your next step

Compare the current approach and the prototype using criteria chosen beforehand. Look for hesitation and extra effort as well as positive comments. Separate what you learned from what remains uncertain. Continue, revise a part, or pause; revisit the question when needed.

What differed from your expectation? Which single feature would you change, and what would you check next?

Six ways to look at the same problem

Remove something

Which step, choice, or search could disappear while the purpose is still served?

Practice idea: Group craft supplies by activity so there is less searching during a project.

Combine things

Could two separate actions happen in the same place or through one movement?

Practice idea: Put a picture of the correctly stored tools beside their storage space.

Reverse an assumption

What changes if you reverse the order, roles, or direction?

Practice idea: Show a finished craft first, then work out the necessary steps together.

Change the timing

Would help be more useful before, during, or after the difficult moment?

Practice idea: Show where a tool should be returned at the point where someone picks it up.

Change the user or interface

What would work for a first-time user, or when reading a full explanation is difficult?

Practice idea: Add names and tool outlines to a color-based sorting system so color is not the only clue.

Automate approved repetition

Which task has stable rules, visible errors, and a clear way to stop?

Practice idea: In an approved, isolated environment, generate draft labels from fictional supply names. Have a person check them, and return to a manual process for exceptions.

Define what progress and stopping will look like

Turn “seems better” into an observable change. Consider mistakes, clarity, and upkeep as well as speed. Use the outline below with a fictional topic, either mentally or on paper.

Difficulty: Who gets stuck while doing what?
Baseline: What happens with the current approach?
Assumption: What change do you expect to affect which behavior?
Smallest prototype: What would let you test that difference alone?
Comparison and criterion: What must happen on the same task before you move forward?
Added burden: Does it create work for anyone else or a later step?
Conditions: What approval, available time, scope, and way back are needed?
Stop condition: What event would end the trial?
Review: What you observed / your interpretation / what to check next.
Fictional practice example: Shared stationery storage

Establish the starting observation

Everything in this example, including observations and results, is invented for practice. Imagine a model of a shared stationery shelf. A first-time user opens the wrong box while searching for a ruler and asks where it belongs when returning it. This is the baseline behavior.

Frame the question and explore options

Ask: “How could someone find and return the ruler on their first visit?” Consider clear boxes, color coding, and labels with names and tool outlines. Make a paper shelf with stationery cards to compare the different labels.

Set the comparison before testing

Use the same task with the original and proposed labels: pick up the ruler and return it. The criterion is choosing and replacing it correctly without instructions or opening the wrong box. If the design adds work when restocking or tidying, revise it. Keep the trial entirely within the paper model.

Use an imagined result to revise the idea

Suppose the fictional trial shows hesitation with color alone, while names and outlines allow the ruler to be returned without instructions. This does not settle a wider rollout. The next trial could check other tools and partially obscured labels. These are invented results for practicing judgment, not reported achievements.

You can practice imagination through concrete actions: observing, generating alternatives, seeking feedback, and revising a test. This guide makes no promise of rank or success. Express your ambition through usefulness and careful evaluation. Keep real work information and personal information out of this site and external AI tools; use fictional material for practice.

06

ENGINEERING

Build software to a high standard

Make something useful, start small, and improve it with evidence. Use engineering principles shared by leading technology companies to develop a working understanding of the whole process: finding a problem, designing, building, operating, and improving a product.

01

1. Establish the problem

Describe who faces a difficulty, in what situation, and what goes wrong. Use authorized observation or public information to understand the current steps, obstacles, and alternatives; distinguish what you observed from what you assume.

Done when: Write down one problem, one piece of evidence, and one open question without identifying anyone. Choose one measure that will help you judge whether the situation improves.

02

2. Specify the first useful slice

Choose a scope that lets someone complete one useful task from start to finish. Sketch the screen and use concrete examples to define inputs, expected results, exclusions, and what happens when something fails.

Done when: Write three acceptance criteria in the form “Under these conditions, this action produces this result.” Decide what to defer and when to review the result.

03

3. Build with sound fundamentals

Give the interface, application logic, and data clear responsibilities, then connect them incrementally. Define data types, uniqueness rules, and updates that must succeed together; choose a simple structure that meets the current need.

Done when: Complete the main workflow with fictional data. Explain the data flow in a diagram, and verify that the setup instructions work in a separate development environment.

04

4. Verify quality and security

Check acceptance criteria, empty inputs, boundary cases, and network failures. Review behavior, readability, and unnecessary complexity; select relevant OWASP ASVS security requirements and record how you checked them.

Done when: Important workflow tests pass and detect a deliberately introduced defect. Record review findings and security checks, and resolve problems that would block release.

05

5. Release with a recovery plan

Prepare release steps, rollback triggers, and recovery instructions. An SLO sets the reliability users need; an error budget describes the failures that target allows. Define the measurement and time window, and prioritize restoring reliability when the budget is exceeded.

Done when: Restore the previous version in an isolated environment and verify how changed data can be recovered. Decide what to monitor after release and who will act when something goes wrong.

06

6. Use results to choose the next change

Check whether the original problem became easier. Drawing on DORA, track delivery time alongside deployment problems and recovery within the same service, then choose one improvement.

Done when: Explain the difference between the expected and actual outcome. Decide what to keep, change, or stop, and set the next small change and review date.

Six technical foundations and how to practise them

Programming and problem decomposition

Learn to explain variables, types, branches, loops, functions, and data structures by tracing input to output. Define how invalid input is handled; when a program is slow, investigate how its work grows as the input grows.

Write a function that filters fictional facilities. Check its expected output for an empty list, no matches, and duplicate entries.

SQL and database design

Give tables distinct responsibilities and protect consistency with primary keys, foreign keys, and constraints. Learn joins and aggregation, measure an index’s read benefits and write costs, and use transactions for updates that must succeed together.

Create tables of fictional facilities and opening dates. Query them, compare execution plans with and without an index, and interrupt an update in a practice database to verify that partial changes do not remain.

HTTP, APIs, identity, and permissions

Follow a browser request through to the server response, including status codes, input validation, and timeouts. Authentication establishes identity; authorization determines permitted actions. If administrative operations are needed, enforce their permissions on the server.

Build an API returning fictional facility data and check valid requests, invalid filters, and missing items. Practice permissions with dummy roles in an isolated environment and verify that unauthorized updates are rejected.

Testing, Git, and automated checks

Choose function tests, integration tests, and essential screen workflows according to the impact of failure. Use Git to preserve the reason for each change and CI to run repeatable builds and relevant checks.

Make a small change to one behavior and document its purpose and verification. Check that a faulty implementation fails its test and that the corrected change passes CI.

Security and privacy

Use only the data and permissions a feature needs, and keep secrets out of delivered files and logs. Learn appropriate input validation, parameterized SQL, and output escaping, then check the implementation against relevant ASVS requirements.

Map the inputs, storage, and outputs of a practice app containing no personal information. Check input handling with fictional data and inspect generated files and logs for secrets or personal information.

Monitoring, performance, and recovery

Use success rates and response times to detect conditions that affect users. Compare changes using the same operations, time window, and environment so you can tell whether performance work or recovery procedures helped.

Simulate bounded load and network failures in an authorized, isolated environment. Record success rates, response times, and recovery steps, then explain what changed after an improvement.

Seven checks before a release
  • Purpose and acceptance: Explain the new capability in one sentence and verify the intended workflow.
  • Usability: Check a small screen, keyboard navigation, and loading, empty, and error states.
  • Change review: Read the diff and related logic, and pass the necessary tests, build, and automated checks.
  • Security and information: Check required permissions and inspect source, generated files, configuration, and logs for personal information or secrets.
  • Data recovery: If the database changes, verify compatibility and restoration in isolation. Identify data changes that a code rollback cannot undo.
  • Release and rollback: Confirm the destination and authorization, and prepare the version, steps, stop conditions, and route back to the previous release.
  • Follow-through: Decide which user workflows and indicators to check, how to respond to problems, and when to review the outcome.
Fictional example: find a library’s opening days

The town, libraries, and opening information are all invented for practice. Work through one delivery cycle with a simple app for checking three libraries, without registration, location tracking, or user profiles.

Need → a testable assumption

Start with the imagined difficulty of comparing three calendars for a particular date. Use a fictional task scenario to check whether selecting a date makes it easy to find an open library.

Specification → a small trial version

Build only a date selector and results list. Distinguish “all libraries closed” from “opening information unavailable,” then release the trial to an isolated preview environment.

Checks → a recoverable release

Test open days, closed days, month boundaries, and missing information, and navigate using only the keyboard. Verify that incorrect opening data fails a test and that the previous trial version can be restored.

Trial → one improvement

Ask consenting volunteers to try a fictional search task and retain only a summary of interface difficulties, without personal records. If the missing-data message is unclear, rewrite it and repeat the same task.

Make strong execution sustainable

Set scope and a review date together

Before starting, write down the deliverable, completion criteria, and review date. If the work will not fit, preserve the most useful outcome, reduce the scope, and record why it changed.

Review early and know when to pause

Review the specification and the first working version. If an assumption breaks or the same failure repeats, pause to examine the cause and bring a concrete question to someone with the relevant knowledge.

Reduce switching and make restarting easy

Keep one implementation task active and assess interruptions before changing direction. At a stopping point, leave your current state, next action, and open questions; adjust the workload so that rest and consistent progress are both possible.

High quality grows through suitable design and repeated improvement. You do not need to recreate a large company’s infrastructure on your own: check the current problem and measurements before adding technology. Run load tests, failure simulations, and security exercises only with fictional data in explicitly authorized, isolated environments, never against live production. The sources below inform the principles; the exercises and completion criteria were written for this guide.

07

ADVERTISING

Bring useful value to the people who need it

Advertising improves through practice: understand a real problem, give people a reason to choose, and learn from the response. Choose search, useful articles, referrals, or paid ads according to where people look for help. Articles and referrals also take time to produce and support, so consider both money and effort.

01

1. Name the person and the situation

Describe the moment when a problem occurs and how someone handles it today. Check the language people actually use through conversations with their agreement or public information. Keep untested assumptions visible.

Fictional example: narrow “people interested in storage” to “people with cluttered, small desks who need an organizer that fits.” A searchable size guide or comparison article could help them choose.

02

2. Make a clear offer with verifiable evidence

State what is included, the price, who it suits, the conditions, and the exclusions. Support claims with product photos, measurements, or a demonstration. If you have no track record yet, show a prototype and identify it as one.

For a fictional organizer kit, show dimensions, materials, and assembly instructions. Use a photo of the actual kit on a desk to explain its use; do not promise that it will make everyone work faster.

03

3. Connect the message to the landing page

Give the ad one clear reason to choose and a useful next step. The destination should show the same product and terms in a journey that works on a phone. Google Ads guidance also emphasizes matching an ad to a relevant landing page.

Ad: “Find an organizer that fits your desk.” Then show dimensions and photos, price and delivery terms, and a clear “View specifications” action. Do not hide extra conditions until the final step.

04

4. Run a bounded experiment

Define the change, hypothesis, review period, total spending limit, and stop conditions first. A handful of responses does not establish a winner; record “still uncertain” when evidence is thin. Real paid publishing and spending require separate approval of the content and budget.

First show a draft to someone and check whether the offer is clear. If paid testing is approved, plan a comparison between a dimensions message and an assembly message under comparable conditions.

05

5. Follow the result through to delivery

Look beyond views and clicks to purchases or qualified inquiries, returns, support effort, and profit. Define the outcome and counting method, and check for missing or duplicate measurement. Attributed conversions do not necessarily equal additional sales caused by an ad. Record why you will continue, revise, or stop.

If clicks rise alongside returns, revisit the promise and product fit. If purchases stay low, investigate price, explanation, and delivery terms as well as the ad.

Understand the measurement funnel
MetricMeaningHow to use it
ImpressionsHow many times the ad was shown. Repeat displays to one person count, so this is not a count of people.Check whether the offer has opportunities to be seen. High impressions alone do not establish sales or profit.
ClicksHow often someone clicked the ad. A click is an intermediate sign of interest, distinct from a purchase.Use it to investigate the message and audience. Click-through rate is clicks ÷ impressions × 100.
Conversion rate (CVR)Defined conversions ÷ eligible interactions × 100. In Google Ads, the denominator consists of interactions eligible for measurement.In a click-based example, 20 purchases from 1,000 clicks is 2%. Keep the outcome, denominator, and period consistent when comparing.
Cost per action (CPA)Ad spend ÷ defined conversions. Its meaning depends on which action counts.¥100,000 for 100 purchases is ¥1,000 per purchase. Separate inquiry CPA from purchase CPA; with zero conversions, CPA cannot be calculated.
Contribution after acquisition costsIn this guide: revenue minus variable costs minus ad spend, before fixed costs.Include fulfillment, shipping, and payment costs when evaluating ad results. Classify costs consistently and avoid counting an expense twice.
A one-page advertising brief
Audience and situation: (Who has which problem, and when?)
Current alternative: (How do they handle it today?)
Offer: (Product, scope, price, and conditions)
Reason to choose and evidence: (Verifiable facts or demonstration)
Distribution: (Search, articles, referrals, paid ads, or another relevant channel)
Ad message: (A relevant reason to choose and a useful next step)
Destination: (A page where the same promise can be checked)
One change to test: (Message, audience, explanation, or another variable)
Test plan: (Period, total cost limit, stop conditions, and evidence needed)
Outcome and economics: (Definition, counting, costs, returns, and contribution)
Approval before launch: (The role approving content and spending)
08

PARTNERSHIP

Good partnerships make expectations explicit

A working relationship needs a shared outcome, clear responsibilities, and a way to raise problems. Make it possible for both sides to make informed decisions without relying on goodwill alone.

Agree on the outcome

Describe what you will accomplish together, who it helps, and how you will know it is ready. Include quality and the customer experience alongside the work to be done.

Fictional example: the production and sales roles agree to finish a product page that helps buyers understand the specifications. They review its clarity together before publication.

Separate ownership from decision authority

Name the person doing the work, the reviewer, and the final decision maker. Clarify deliverables, dates, review rounds, and how additional work is handled.

The production role drafts, the review role checks the facts, and the publication owner approves release. Late requests trigger a conversation about their impact and a revised deadline.

Share bad news early

Use brief, regular updates covering progress, next steps, and decisions needed. When a delay or defect emerges, share the known facts, likely impact, and available options promptly.

Instead of only saying “The deadline is at risk,” explain: “The photos have not arrived. We need the review role to choose between postponing launch and starting with diagrams.”

Handle disagreement and boundaries

Return to the shared purpose and evidence without making disagreement personal. Discuss payment, ownership and permitted use of work, confidentiality, and handover before starting. Take unresolved specialist questions to an appropriate professional.

Replace “That idea is bad” with “Readers may miss the price; let us review both versions against the same criteria.” Agree on conditions before accepting extra work or out-of-hours support.

A conversation before working together
Shared outcome: (What will we deliver, and for whom?)
Definition of done: (Quality, scope, and date)
Roles: (Delivery owner, reviewer, and final decision maker)
Communication: (Frequency, channel, and when a response is needed)
Changes: (Impact on cost, scope, and timing; renewed agreement)
Terms to clarify: (Payment, ownership and permitted use, confidentiality)
Problems: (Early notice, escalation contact, and decision process)
Ending the work: (Deliverables, handover, and outstanding payments)
Next action: (Responsible role and date)
This organizes a discussion. It is not a contract or legal advice.
09

ECONOMICS

Turn useful work into a durable business

Building substantial wealth through a business starts with useful value and sound operations. Deliver consistently, check the economics, maintain cash flow, and use available capacity to improve quality, systems, and people’s skills. These habits can build lasting business value over time; they do not guarantee a particular scale or return.

FICTIONAL LEARNING EXAMPLE

A simplified, fictional month for a small product business selling 100 items at ¥10,000 each. All figures are in Japanese yen. Of the revenue, ¥200,000 will be received next month; assume every listed expense was paid this month. Taxes, borrowing, equipment purchases, and other items are excluded.

ItemAmountCalculation / interpretation
Revenue¥1,000,000¥10,000 × 100 items. This is the amount sold, distinct from cash received this month.
Variable costs−¥400,000¥4,000 per item × 100, covering purchase, shipping, payment costs, and similar items. Ad spend is excluded here.
Ad spend−¥100,000Customer acquisition spending in this fictional example, not a recommended advertising budget.
Contribution after acquisition costs¥500,000¥1,000,000 − ¥400,000 − ¥100,000, available to cover fixed costs.
Fixed costs−¥350,000Staff, premises, software, and similar costs treated as fixed for this example.
Operating result in this example¥150,000¥500,000 − ¥350,000. This is the profit remaining after the listed expenses.
Cash change in this example−¥50,000¥800,000 received − ¥850,000 paid. Cash falls despite a profit because some payment is still due.

Revenue records sales, profit deducts the related expenses, and cash flow records money actually moving in and out. If ad spend rose by ¥50,000 with the same sales and all other conditions unchanged, profit would fall to ¥100,000. Review sales, returns, delivery capacity, and payment timing together before deciding to continue or expand.

Review what the business learned each week
Value: Which problem did we help solve, and what is the evidence?
Distribution: Where did we reach people who were a good fit?
Advertising: What one thing changed, what did we learn, and what remains uncertain?
Economics: What remained after delivery and acquisition costs?
Cash: Are receipts and payments happening at different times?
Partnerships: Are roles and expectations aligned? What problem needs an early update?
Next week: What will we continue, stop, and test once—and which role owns it?

These are learning examples and planning prompts. They require no personal information or confidential business details. This site has no ad publishing, purchasing, or sending feature. For a real campaign, check the accuracy of claims and applicable rules, then obtain separate approval for publishing and spending.

10

SCENARIOS

What would you say here?

These fictional scenarios are for practice. Choose a response to explore how it may land and what to try next. There are no scores or judgments about your ability.

SCENARIO 01

Before you start explaining

In an agreed consultation, someone says, “The work takes too long.” You do not yet know which part they mean. What would you say first?

SCENARIO 02

Explore a concern about price

After hearing your proposal, the other person says, “That seems a little expensive.” How would you respond?

SCENARIO 03

Respond to a harsh comment

A colleague says, “This is useless.” After taking a moment, how could you bring the conversation back to the work?

SCENARIO 04

You have a promising idea. What comes next?

In a fictional workplace, you think of generating stationery labels automatically. You have not yet discussed it with the responsible person or checked it with people who would use it.

SCENARIO 05

The prototype did not work as expected

In a fictional trial of a stationery shelf model, users still hesitate when returning tools despite the new labels. The result falls short of the criterion chosen for the exercise.

11

ROADMAP

Connect understanding, building, selling, and learning in 90 days.

Keep your main responsibilities and commitments first. This practice outline fits within agreed time; extend it when busy and take one small theme through the whole cycle.

Days 1–30

Build understanding and foundations

  • Practise asking about a problem, summarizing it, and checking your understanding.
  • Use a small fictional app to explain how its database, API, and tests fit together.
  • Write down the intended outcome, quality requirements, and available time.
Days 31–60

Build a small solution and explain its value

  • Build one small feature in an approved test environment and check failure cases too.
  • Prepare a proposal explaining the audience, value, evidence, and conditions.
  • Practise agreeing on responsibilities, review points, and how changes will be decided.
Days 61–90

Review distribution and economics

  • Improve a message and its destination together, and plan how to measure cost and outcomes. Actual ad delivery and spending need separate approval.
  • Review user behavior, quality, workload, and profitability together.
  • Decide what to continue, change, or stop, and keep evidence in approved work records.

ONE GOOD STEP, TODAY.

Meaningful growth starts with one action.

Ask one question. Keep one promise. Test one idea. Keep connecting those small practices to better work and more room to think.

Choose today’s practice ↑
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