02Decide What to Build

Turn research and business goals into a product roadmap

As the first product designer at a seed-stage startup, I led research into daily reporting, problem definition, UX and UI, and the development roadmap. I observed sixteen people at work, designed a system that drafts reports from GPS data, and turned more than one hundred requests into a sequence for business growth.

A handwritten daily report beside the Reposaku mobile interface that creates reports from GPS data
Role
1st Designer / Lead Product Designer
Team
CEO / CTO / Engineers — 9-person seed startup
My Ownership
Research / Product Definition / UX / UI / Roadmap
Duration
2022–2025
People observed16people
Requests organized100+requests
Adoption impactHigher submission rate
Business outcomeExpanded to new industries

01 Discovery

Observe the reporting process until all sixteen people go home

Context

The company planned to standardize daily reports for vehicle-based work and expand from agriculture into snow removal and waste collection. Many feature requests existed, but there was no agreement on what to build first.

Before turning requests into screens, I observed the full process: finishing fieldwork, gathering at the office, writing and submitting reports, and waiting until everyone could leave.

Insight

Paper was not the real problem.

The problem was reconstructing an entire day from memory at the end of a shift.

Observed

  • Work ended at 8:23 p.m.; the team left at 10:31 p.m.
  • Workers reconstructed the day from memory
  • Each person rounded time differently
  • Notes taken while driving varied in detail
  • Everyone waited for the last report
  • A manager recompiled all sixteen reports

02 Product Decision

Let the system draft the facts instead of asking people to recall them

Decision

Reposaku already knew when and where vehicles had traveled. Instead of designing another input form, I used that GPS data to generate a draft daily report automatically.

I designed a workflow that reduced input itself, rather than merely making a form easier to complete.

Before

Enter every item from memoryReplacing handwriting with a phone still requires workers to remember the day and enter times and details. More fields improve data depth but increase the burden of submission.

After

Review a system-generated draft Use GPS location and time as the source of truth, then split or correct only what is needed
A list of report scenes generated from GPS logs and its editing interface

03 Roadmap

Turn 100+ requests into a sequence for growth

Internal requests and research findings produced more than one hundred possible improvements. Rather than build them all at once, I defined a sequence that started with immediate field use and grew toward a data foundation capable of analysis and expansion into other industries.

Instead of ranking isolated features, I designed the order in which the product and business could grow.

Phase 1: Make submission possible

Create and submit a daily report on a phone using GPS data.

Phase 1.1: Make it operational

Add submission status, proxy submission, corrections, help, and the details required for daily operations.

Phase 2: Make the data valuable

Raise data quality to support aggregation, CSV exports, billing, analysis, and new industries.

04 Product Structure

Turn field exceptions into a structure that works across industries

I treated exceptions as signals for a shared structure that could support different operations, not as one-off features to add.

Multiple People

Multiple people can share one vehicle

Logs are not fixed to one person; workers select their own activity from company-wide data.

Without GPS

Some days have no GPS data

Office and maintenance work can be submitted manually through the same flow used on GPS-recorded days.

05 Impact

Turn reports written from memory into a review of recorded facts

Operational Impact

More accurate reports and a higher submission rate

Using GPS timestamps reduced time-reporting errors compared with handwriting and increased trust in the data. Semi-automated report creation also improved the submission rate.

Business Impact

Analysis and expansion into other industries

Accumulated report data is now used for billing and operational analysis. By identifying the shared structure of daily reporting, the product also expanded beyond agriculture into vehicle-based work such as waste collection and snow removal.