4.1. Guideline for figure design


device through a systematic diagram.

separate developmental guidelines are needed.

buttons 6-9 year old

4. Drawing mobile phone design and demanding app

Categories Types Contents

device acts as a link.

technologies, and services.

Button Number of

4.1. Guideline for figure design

3.3. Summary

phase.

prevented.

LCD Screen

an emergency button, it is difficult to apply existing smart phones as they are, and

• Ex-cons, first offenders, luring and kidnapping have been mixed to categorize four scenarios based on four stages of a crime as extracted from the study: crime prerequisite → approaching → luring and kidnapping → movement → committing crime. Research has been conducted to determine the status of a child and the role of a device in each

• Research has been conducted to comprehend the role of a device through these scenarios. Toward this end, research has been conducted on detailed functions of a

• This process revealed that practical preventive measures can be generated when a protector – the government (the police) or a private company (a security service provider) and a child communicate with one another to effectively prevent crimes. A protector can immediately estimate the situation on behalf of a child and a government agency or a private security service provider must intervene to protect a child while the

• From examining products on the market with regard to a device that can fulfill such a role, smart phones are deemed the closest ones and, given that users are children,

The chapter suggests guidelines for developing a device for children so that crimes can be

Information herein has been established based on useful factors on previous research,

Without - May be limited as it allows only text informing With - Informs a child of how to respond through various

Type Window Provides information through text or illustrations Full touch Button type (Hotkey & 10-key) can be jointly used and

Size - Should not be larger than 5x9cm for usage by children

information

age-specific usage is possible

aged over 6

Number and size of buttons should be designed while carefully examining abilities of 6-9 year old child's operational skill. Buttons with icons are preferred over letter and should be limited with call, end, select menu,

guidelines are deemed necessary for developing beneficial devices.


With prior consent, guardians who received warning message may access and control child's camera, microphone, and siren, which are installed in child's mobile phone.

Child can transmit text message to his/her guardians with one touch.

Guardians can remotely control child's camera and microphone of mobile phone.

Able to transmits short texts Transmits preregistered message in case of emergency.

The chapter introduces an example of a selective application of guidelines for a crime-

1 Remote Control Camera - Parents/Guardian can check up the child's surrounding using the child's mobile phone 2 Full Touch Screen - The layout can be made to suit one's taste. If the child is too young, parents/guardian can set

3 Emergency Speaker - In emergency situation where child needs help, siren blows to inform their location;

5 Emergency Button - If the button is pressed in an emergency where a child needs help, pre-set dial is activated to

6 LED Lamp / Emergency Light - Acts as a lamp and is automatically turned on when a child is isolated in the

7 Battery Cover - If the power is turned off or battery is removed deliberately, it reports to a preset number.

It is possible to set up the screen by age or taste. As users are aged 6 to 12, it has been divided into hotkey method and 10-key method based on children aged 9; however, can be

**Table 15.** Guideline for application design

5.1. Device specification

prevention device for children.

**Figure 9.** Example of Device Specification

parents /guardian can also remotely activate blow the siren

dark or will blinks to draw attention in the face of danger.

Has a function that reports the location if the batter is removed.

set up in consideration of cognitive ability and manipulability.

5.2. Age specified set-up

SMS

5. Example

it up.

seek help.

4 Power Button

**Table 14.** Guideline for figure design

## 4.2. Guideline for application design



**Table 15.** Guideline for application design
