	Modality Theory	PREMO	MPEG7	Mime	CSS	CC/PP	Media Streams
Intended use	define primitives for multi-modal generation	Reference model for comparing multimedia systems/architectures	Semi extensible Framework to describe and retrieve multimedia content.	Protocol originally used for handling content of mail messages. Currently used in browsers and window managers.	designer orient hsl versus rgb	Defines a vocabulary to describe capabilities of hardware device.	Describe video content for querying and composing
Focus			describe/search		document layout		Video editing
Originating Field	HCI	Software Architecture	Multimedia Database	Network	Design	Device	Video
Extensible	No	No	Yes, but only within mpeg7	Yes, new types can be registered.	yes	yes	no
Complete	Yes	Yes	No	No	yes		no
System/User oriented	User	System	System	System		System	user
Composites	No	Yes	Yes	Yes, multipart	yes		yes
Content Description	No	No	Yes	No		No	yes

2005-02-17T14:52:15