The elmcity calendar service is for:
Contributors who publish calendars on their own websites.
Curators who merge calendars from many contributors into a hub.
Users who view or subscribe to individual calendars on contributors' websites, and/or merged calendars on a hub.
This page shows how elmcity contributors publish their calendars and connect them to hubs. (See What elmcity curators do for the curators' point view.) Consider a regional wine commission with a merged calendar that features wine-tasting events hosted by all the wineries in the region. Each winery has an events page on its own website, and wants those events to appear also on the commission's merged calendar. The wineries are contributors to an elmcity hub. The wine commission is the curator of the hub. Here's the big picture from the contributors' point of view.
The hub isn't shown here because it works behind the scenes to gather all the wineries' events and combine them into the merged calendar. Wineries don't interact with the hub, and don't really need to know it exists. They just want to 1) publish their events on their own sites and 2) also publish them -- as an automatic side effect -- on the commission's site.
Each winery keeps its schedule of public events in an online calendar service like Google Calendar or Hotmail Calendar. The wineries' webmasters put widgets from these online calendars on the Events pages of their websites, using HTML code supplied by the calendar services. In this example the Red Grape Winery has put a Hotmail Calendar widget on its events page of red-grape.com, and the White Grape Winery has put a Google Calendar widget on its events page.
In addition to making widgets you can put on Events pages, online calendar services provide feed URLs that computers use to exchange calendars. In this case, the exchange happens between computers at Google Calendar or Hotmail Calendar, which are hosting the wineries' calendars, and the elmcity hub which reads and merges the feeds. But the wineries' webmasters don't really need to know that. They just need to find the feed URLs, following these instructions, and send them to the curator who in turn adds them to the hub.
Obviously the elmcity service isn't just for wineries. Here are some other scenarios:
|regional arts hub||non-profit arts commission||music, art, dance organizations|
|university hub||university public relations||departmental administrators|
|city or town hub||chamber of commerce||local businesses|
|sports hub||league administrator||teams|
|health care hub||hospital public relations||departmental administrators|
|local news hub||local newspaper, blog, radio station, etc.||anyone promoting public events|
In all these scenarios, contributors manage calendars for their individual groups or departments or teams, and curators reuse those calendars by connecting them to larger hubs.