Week 4, Tuesday

gistfile1.txt

Question 1:
uuidgen is a command that returns a unique identifier value. You should use it when it is necessary to create a value (like a
property id for a object) and be sure that that value will never conflict with any other value.

Question 2:
CoreLocation uses GPS coordinates to provide "course" information. Heading is the direction where the iPhone is pointing, 
returned from the digital compass.

Question 3:
GPS (Global Positioning System) is the device responsible to return user location (latitude, longitude, range). Magnetometer 
is the digital compass that allows the OS to know where the device is pointing at related to the true north and magnetic north.
To use this capabilities, it is necessary to ask for permission (settings inside info.plist) to the user.

Question 4:
- Theater uses different pre-defined templates where the user just replace specific frames to generate a more "professional" 
result.
- Movie requires the user the create all video/audioline from scratch. Therefore this options gives your more liberty and
flexibility, it also is more difficult to achieve the same level of quality of Theaters.
- They are related because both "return" the same content: video/audio content. But Theaters make it easier for the user 
creating templates with specific categories to facilitate media creation.