THIS SUBJECT IS MOBILE APP AND APPLICATION TQ

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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THIS SUBJECT IS MOBILE APP AND APPLICATION TQ

Q4.
Consider a case where this mobile application, Distress Sense, can report if a person is
in distress and requires attention. This is achievable by pairing up the mobile app, via
Bluetooth, with a wearable wrist device that constantly monitor a user's vital signs like
heart rate, respiratory rate, body temperature etc. Sensed data are constantly collected
at the mobile app, sent from the wearable device.
(a)
(b)
(c)
If you are going to develop a similar app, what storage method will you use to
store the sensed data? Justify your answer.
The clever part of DistressSense is that it can accurately identify when a person
is in real distress, e.g. fainted. Assume that a user of DistressSense did faint, and
no one was around at the time. Can you suggest how the mobile app could be
useful, and get the user out of trouble? Hint: what information would come in
handy (for example critically needed or nice-to-have)?
Do you think DistressSense should use any web services? If yes, please list the
web service(s) and explain how the web service(s) help carry out its aim of
getting help for the user in distress? If no, why does it not require web service,
and explain in your view how does the app carry out its aim (of getting help for
a user in distress) without involving web service(s)?
Transcribed Image Text:Q4. Consider a case where this mobile application, Distress Sense, can report if a person is in distress and requires attention. This is achievable by pairing up the mobile app, via Bluetooth, with a wearable wrist device that constantly monitor a user's vital signs like heart rate, respiratory rate, body temperature etc. Sensed data are constantly collected at the mobile app, sent from the wearable device. (a) (b) (c) If you are going to develop a similar app, what storage method will you use to store the sensed data? Justify your answer. The clever part of DistressSense is that it can accurately identify when a person is in real distress, e.g. fainted. Assume that a user of DistressSense did faint, and no one was around at the time. Can you suggest how the mobile app could be useful, and get the user out of trouble? Hint: what information would come in handy (for example critically needed or nice-to-have)? Do you think DistressSense should use any web services? If yes, please list the web service(s) and explain how the web service(s) help carry out its aim of getting help for the user in distress? If no, why does it not require web service, and explain in your view how does the app carry out its aim (of getting help for a user in distress) without involving web service(s)?
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