Santiago, Jon, thanks for the info on WebDAV.
We also experienced that many content streams do not properly set
expiry information. However, commercial content syndicators often
use a different approach. They provide you with a client that you
can install on a server at your site. The client allows you to
specify the content you want to offer in your portal and the client
will take care to keep the copy of selected content at your site
up to date. The portal servers can then access content from the
local copy.
This is also a very interesting approach. There are at least two
major options how portals can access content:
- The portal accesses content at a live web site. To avoid waiting
times for users, it has to access the remote content via a local
cache. The first access to a particular peace of content may take
some time, users that subsequently access the same information
will be served faster.
- The portal has a local mirror of content that is automatically
updated by an appropriate client for content fetching (e.g.
special clients provided by content syndicators or generic
deamons.) Not even the first user will experience long response
times due to latency between portal and content source.
Are there more ?
Best regards,
Thomas
Thomas Schaeck
IBM Pervasive Computing Division
Phone: +49-(0)7031-16-3479 e-mail: [EMAIL PROTECTED]
Address: IBM Deutschland Entwicklung GmbH,
Schoenaicher Str. 220, 71032 Boeblingen, Germany
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