Phase 1

System

SCoh

SCop

CCD

TE

0.5

0.28

0.75

0.60

Moderate

Phase 2

Component

CCoh

CCop

CDep

TE^*

Location detection

0.5

0.30

1.0

0.62

Moderate

Network scanner

0.0

0.35

0.57

0.68

High

Power source

0.0

0.15

1.0

0.75

High

Alert transmitter

0.0

0.4

0.57

0.75

High

Battery level manager

1.0

0.2

1.0

0.26

Low

Network availability checker

1.0

0.2

0.57

0.09

Very Low

Alert switcher

1.0

0.40

0.57

0.50

Moderate