Example: Content Definition Format

• Domain: Internet “Push” Technology

• Defined by Microsoft

• PointCast is a major user

• CDF file on a web site refers a set of newspaper articles (in HTML) called a channel

• Client periodically fetches CDF file from server, then fetches newspaper articles described in CDF file

• Note: Open Software Description (OSD) from Microsoftdoes the same for application distribution

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