I do agree with all classmates. The information such blood pressure from personal wearable devices in certain area can be transferred to personal mobile devices or laptop using bluetooth pairing which is a form of PAN. After the data is well organised using the specific application installed in the smartphone or laptop, for example, those data can be transferred to the computer system of MOPH if users and MOPH have put already the consent agreement to share personal data between these two parties. This type of information sharing will use WAN which is the largest distance telecommunication due to MOPH is the national organisation. However, even though WAN has benefit in terms of it’s suitable for long distance telecommunication (unlike LAN or MAN which cover only limited distance), the disadvantage is prone to unauthorised access of personal data.