Once you have defined your Codes and decided about your files structure, it is time to start with the observation.
▪Open you video(s) if not already done so.
▪Make sure the correct Code Definition is opened in the Code Definition dialog.
Note: You can switch to a completely different Code Definition file for each Observation pass through the video!
If you decide that you want to observe all different types of information in one pass per Subject, you need to start and end each Event with a Code from the top-level file, instead of using the SPACEBAR.
In this example we continue by describing the three-passes per Subject method.
▪Open the Code definition file that holds your Pass 1 Codes, the Movement Codes in this example.
Select Coding Mode
Picking the right coding mode not only depends on the things like Event-Sampling-based coding versus Time-Sampling-based coding, Hierarchical Codes and Mutually Exclusive Codes.
It also depends on the required accuracy and the length of the behaviors to be observed.
Fast changing behaviors require an other approach as behaviors that last minutes or even hours.
For further details on the other coding Modes, read Coding Mode Details.
Presuming you have predefined Sets per Subject:
▪Select the Set line of the Subject you want to observer, for example, 'Subject A'.
▪Click 
to activate the Observation Mode.
If you already did collect Events for this subject, you can also select any line within this Set to add the new Events underneath.
Log Events per Subject
▪Read Log Post-Hoc Events to continue with the example.
▪Read Log Ad-Hoc Events is you prefer a more direct way of coding for the first pass.
Adjustments during Logging Process
At all times, you can adjust the speed and control the video manually, to keep up.
▪Pause and rewind to reposition the video whenever you missed something.
▪Correct time information on the fly by dragging the current time value on-top of the start time or Offset that needs changing.