Any files submitted in the PAC platform is subject to several controls, including validation of the declared format.
This is to ensure that the file is valid and well-formed compared to the specification of the format.
- A file is considered “well-formed” if it meets the requirements purely syntactic.
- A file is considered “valid” if it meets the requirements of semantic format.
Note: format must be well-formed to make the control of its validity is possible.
To perform this validation, the PAC system is interfaced with a monitoring module developed largely in-house using the Java language. It uses the tools Jhove, ImageMagick, DROID, MPlayer (Mencoder) and MediaInfo to identify, validate and characterize the format of transferred files.
