In order to be able to utilize our event tools, you need to understand what we mean by the word EVENT. You need to understand that multiple events are called an EVENT FEED. Google Calendar is an online application that aggregates multiple event feeds. iCal and Microsoft Outlook are desktop applications that aggregate multiple event feeds. Many applications offer the ability to create feeds, and the ability to subscribe to feeds.
A feed is just a collection of events, and it often doesn't matter what application is used to display those events. The same feed can be used in multiple applications, by multiple users. It is totally plausible that an event starts out in a single user's Google Calendar application, moves to another user's Google Calendar application, moves on to an online publishing tool (like Trumba), gets embedded in a web page, then gets subscribed to by an entirely different user, on their phone. It is this connected nature that makes it really important that all the users along that chain of events follows the directions.
When we talk about Event Moderation, we are merely talking about a second party agreeing to an invitation. Another way of looking at it is making a reservation at a restaurant. When the restaurant tells you that they have a table for you, or that they don't have a table at 6, but do have one at 7:30, they are the moderators for the table.
Depending on the type of event that you are hoping to run (meeting, dance, lunch) you may have to ask in different places. A moderator would then say yes to the event, or offer the event back to you with some changes (different time, different day, you need to add more information). Once the event is agreed upon, you may receive further instructions.
If the EVENT is required, it will automatically show up in user's Google Calendar Application, inside one of the CA Published Calendar feeds. If the EVENT is optional, it can be subscribed to, from one of the embedded website feeds.