Question
In: Computer Science
Draw the diagram (ER / MR / UML) for a database containing the following characteristics: •...
Draw the diagram (ER / MR / UML) for a database containing the
following
characteristics:
• Presence sensor that stores presence information with its
timestamp and its
location.
• Distance sensor that saves distance information with its
timestamp and its
location.
• An actuator of a switch that energizes a bulb, where the record
of its
been with your timestamp and your location.
• An actuator of a motor that opens a door, where the record of
its
been with your timestamp and your location.
• A device that receives information from sensors and communicates
with the
actuators, it can be an Arduino or any other board.
Solutions
Expert Solution
E-R Diagram-
- This Er model has 8 main entities-
- Presence sensor
- Distance sensor
- sensor
- switch actuator
- motor actuator
- communicates
- information
- device
- This Er model has has been converted into 3NF
- Here each entity and its attributes are in tabular form
- Data types of each attribute has been mentioned with it
- The primary key as PK and foriegn key as FK has been mentioned
there.
If any doubt, please feel free to ask and comment, i would like
to answer them.
Thank you
venereology answered 9 months agoRelated Solutions
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