Mobile hosts are typically equipped with multiple wireless network interfaces and have the ability to
communicate over heterogeneous networks such as 3G, WiFi, Bluetooth, etc. Mobile Web services provide
a natural opportunity for enabling instant access to real-time data. Vital signs can be collected by medical
sensors and transmitted via a short-range link (ex. Bluetooth) to the a patient’s mobile device. Hence, what
comes after is the responsibility of the mobile device and the system it hosts. Mobile Web services, additionally,
can provide real-time access to continuously changing context attributes, such as patient location
and other patient-related environment context attributes such as surrounding oxygen level.