P.D.A = PERSONAL DENTAL ASSISTANT

Yi-Jen LaiArthur LiuAndrew Puchle

Problem SpaceContext

The purpose and overall goal of this device is to improve the patient dentist relationship by localizing a patient’s information in one place.

The device is designed for foreign visitors. The device will help people in their daily lives

because it will automatically store demographic and medical information, such as x-ray film, reducing appointment times and it will provide information designed to encourage more healthful decisions concerning dental hygiene and maintenance.

Problem SpaceUse

P.D.A is a portable, easy to transport device that uses a projectable GUI which allows users to interact in real-time with a virtual interface.

It will be designed as an extension of a central EMR database and will provide easy to use, secure, portable transport and storage of personal dental information

The device will also provide the foreign visitor with pertinent information about local dentists such as specialties, customer complaints, experience, cost, office proximity and educational background.

As a personal gadget the device also constitute as personal dental advisory assistant. It manages the dentist appointments and routine applications of treatment. The device also gives personalized teeth maintenance advices daily to help the carrier keep healthy.

Problem SpaceAssumptions

The dentists will be categorized by specialties. A general dentist will be listed as a general practitioner and all others by their specific area of expertise.

The patient is wishing to minimize the procedures for treatment and also to minimize costs.

The patient will not have extreme visual handicaps such as blindness.

The user should have some basic computer knowledge due to the digital nature of the menu system, but the overall goal is to design the product for novice users as well as computer experts.

Problem SpaceSource of Inspiration

http://www.youtube.com/watch?v=blBohrmyo-I

Conceptual Model

Based off the ‘Sixth Sense’ from TED Labs at MIT.

Interface is projected from a small, portable projector that can be worn around the neck or carried in one’s pocket.

IDENTIFYING NEEDS AND ESTABLISHING REQUIREMENTS

A. Target Audience

People who are: Foreign, thus not familiar with

American Dental system Have insurance both at home and in

the US Particularly for people with chronic

dental problems

Data Gathering for Requirements

Interview: 2 foreign students Participant A:Male, Student, 25, Chinese, Recent

victim of an abnormal wisdom tooth.Participant B:Female, Student, 27, Chinese, Never

been to a dental clinic since came to the US.

Both have dental insurance.

Major findings

Find me a proper dentist

Save my time and money

Easy to carry around, easy to transfer data

I don’t understand dental lingos and obscure terms

Privacy

B. Requirement Analysis

1. User Requirement Minimal knowledge about computer

and certain amount of exposure to e-devices.

Normal vision and dexterity.

B. Requirement Analysis

2. Functionality Requirements Data retrieval and updating with

minimal operations Locate proper dentist using various

criteria Insurance Info Healthy Suggestions and

appointments Translation

B. Requirement Analysis

3. UsabilityEfficiency: Easy and accurateSafety: Authentication and data

backupManipulation and Operation: Small

learning curvePhysical Requirements: Resist to

water, high temperature and pressure

C Task Scenario

Mr.Misawa , from japan, experiencing toothache

Using the product, he finds Dentist Dr.Lai in vicinity, good reputation, know Japanese…

Make appointment and Meet Dr.Lai

Dr.Lai inputs his diagnosis and treatment plan

Post-meeting

DESIGN AND PROTOTYPES

Design and Prototypes

Design Concepts Using intuitive icons Icons are rotatable and easy to

manipulate Contextual awareness, Easy to fall

back home Easy to perform major tasks

Design and Prototypes

Low-fidelity Prototype

Design and Prototypes

High-fidelity Prototype

http://www.apuchle.com/I541/HiResprototype/

EVALUATING DESIGNS

Usability Study-Interview

A. Four participants B. Six questions (open-ended

question) Example : While you’re using the

product, do you always know where you are?

Usability Study-Internal Walkthrough

A. One team member

B. Three tasks Example : Using “My Records”

which is under the functionality of “My Mouth” to send your dental records to the dentist.

Assessment of findings

Most of participants thought the device (PDA) makes sense to them and is helpful especially when they face dental care problem, but there still has some points could be improved.

Assessment of findings (Interview)

Pro : All the usability participant know how

to accomplish the task by the way the design team desired

All the usability participant agree that they always know where they are while they are using the product

Assessment of findings (Interview)

Con : Some participants cannot connect

part of the icons with their functionality

most of participants cannot image what difference between the current prototype and the projectable version of the device

Assessment of findings (Internal Walkthrough)

The prototype is not totally interactive, hence it is difficult for participants to clearly understand the whole concept of the device

Although most of participants are international student, they had not undergo the dental issues in the United States yet

How to improve the product with the evaluation finding in the re-design

Reconsider what icons could be accepted and understood with their functionality by most of the users

Enhance the interactive level of the product

Adjust the position of the user to the same spot

Thank You