Birhasani RakaProduct & UI/UX Designer
Work Featured case study
High-fidelity prototype — not launched

BECATUR

Designing an Inclusive Digital Reservation Experience for Traditional Becak

An academic research project connecting travelers and traditional becak drivers through a two-sided reservation prototype.

A validated high-fidelity prototype; SUS increased from 70.66 to 82.5 for travelers and from 67.75 to 81.25 for drivers.

BECATUR academic prototype across traveler, driver, administrator, and informational web experiences.
Organization
Academic research project
Role
UI/UX Designer and UX Researcher
Timeline
November 2024–March 2025
Status
High-fidelity prototype — not launched
Contribution
Research and design were completed with one equal UI/UX design partner.
  • 0179 research participants
  • 02More than 200 mobile screens and states
  • 03Two usability-testing iterations

Project context

A two-sided reservation challenge

BECATUR explored a digital reservation experience connecting travelers with traditional becak drivers. Because the service involved two roles, the product scope had to account for both the customer side of a reservation and the driver side of fulfilling it.

This was an academic research project developed from November 2024 to March 2025. Its outcome was a high-fidelity prototype, not a launched or publicly operational product.

My role and collaboration

Research and design completed as equal partners

I worked as a UI/UX Designer and UX Researcher with one equal UI/UX design partner. The research, synthesis, product structure, interface work, and usability-testing iterations were shared work.

The collaboration is credited as an equal partnership; this case study does not present the research or design as sole-authored.

Research and evidence

79 participants across two cities and two user groups

35 travelers

Traveler research participants in Surabaya and Yogyakarta.

44 becak drivers

Becak-driver research participants in Surabaya and Yogyakarta.

79 total participants

Evidence was gathered across both sides of the proposed service.

Two locations

The research covered Surabaya and Yogyakarta.

Research synthesis

Evidence before interface decisions

Research synthesis boards grouping findings for traveler and becak-driver experiences.
BECATUR information architecture connecting customer, driver, and administrator product areas.

Two user perspectives

Different roles required different product paths

Traveler perspective

The customer mobile application represented the traveler side of the reservation experience.

Driver perspective

The driver mobile application represented the becak-driver side of receiving and fulfilling the service.

Shared service

Both roles needed to connect through the same reservation concept while retaining role-specific flows.

Operational oversight

A separate administrator website extended the product scope beyond the two mobile applications.

Research to prototype

Moving from evidence into a testable product

  1. 01

    Research both roles

    Engage 35 travelers and 44 becak drivers across Surabaya and Yogyakarta.

  2. 02

    Structure the service

    Define separate customer, driver, and administrator experiences.

  3. 03

    Build the prototype

    Create more than 200 mobile screens and states, a 45-screen administrator website, and a one-page informational website.

  4. 04

    Test and iterate

    Run two usability-testing iterations using SUS and SEQ.

Customer user flow

Structuring the traveler-side reservation experience

Traveler flow covering account access, reservations, tracking, feedback, rewards, profile, and payment.
The flow represents the customer side of the tested high-fidelity prototype.

Driver and administrator flows

Structuring service delivery and operational oversight

Driver flow covering account access, order acceptance, pickup, trip completion, profile, and earnings.
Administrator flow covering account access and operational management tasks.

Design exploration and decisions

Keeping role-specific experiences connected

The product was divided into a customer mobile application and a driver mobile application, supported by a separate administrator website and a one-page informational website.

This structure allowed each role to follow a distinct path while remaining part of the same reservation concept. Detailed visual claims are deferred until approved assets are available.

Mobile applications

More than 200 screens and states across customer and driver experiences

BECATUR customer mobile application prototype showing reservation, tracking, and destination interfaces.
BECATUR driver mobile application prototype showing order, route, completion, and earnings interfaces.

Complete product scope

Designing beyond the two mobile applications

Customer application

A mobile experience for the traveler side of the reservation concept.

Driver application

A mobile experience for the becak-driver side of the service.

Administrator website

A separate 45-screen administrator website.

Informational website

A one-page informational website.

Usability testing

SUS improved for both user groups across two iterations

Travelers

Increase of 11.84 points

Iteration 170.66 / 100
Iteration 282.5 / 100

Iteration 1: 70.66Iteration 2: 82.5

Becak drivers

Increase of 13.50 points

Iteration 167.75 / 100
Iteration 281.25 / 100

Iteration 1: 67.75Iteration 2: 81.25

Both usability-testing iterations used SUS and SEQ. Numeric scores are shown directly so the comparison does not depend on color.

Final solution

A validated high-fidelity academic prototype

BECATUR high-fidelity academic prototype across customer, driver, administrator, and informational web experiences.
The result was tested as a high-fidelity academic prototype and was not launched or publicly operational.

Project status

Validated through testing, but not launched

The outcome was a high-fidelity academic prototype supported by two usability-testing iterations. It was not launched, adopted, or publicly operational.

The completed scope comprised more than 200 mobile screens and states, a 45-screen administrator website, and a one-page informational website.

Validated outcome

Measurable improvement within the prototype testing context

Traveler SUS increased from 70.66 in the first iteration to 82.5 in the second. Becak-driver SUS increased from 67.75 to 81.25.

These results describe prototype usability testing only. They do not indicate market adoption, public operation, or production performance.

Reflection

Designing one service through two distinct perspectives

What I learned

Working with 35 travelers and 44 becak drivers reinforced the importance of examining both sides of a service before defining the interface. Equal-partner collaboration helped carry the research into separate customer and driver flows without presenting either role as the whole system.

What I would do next

A future phase would need to validate the service beyond a high-fidelity prototype before making any claim about launch, adoption, or public operation. Further work should continue testing both roles and the administrator experience in their distinct contexts.