Reserving general and specific inventory to be sold or used in manufacturing. Avoid doubled bookings.
Video can take a while to load, because the files involved are quite large. The display size is quite small to keep download times reasonable and avoid jerky playback or broken audio.
Even if not every detail is clear, hopefully there will be enough to give you an adequate appreciation of the principles so you can get started for yourself.
Subject matter has been broken up to keep videos short and file sizes small. Even so, you may require patience waiting for your video to show on the screen. Playing time will be several minutes for each video.