<s>
Enhanced	B-Device
TV	I-Device
Binary	I-Device
Interchange	I-Device
Format	I-Device
(	O
EBIF	B-Device
)	O
is	O
a	O
multimedia	O
content	O
format	O
defined	O
by	O
a	O
specification	O
developed	O
under	O
the	O
OpenCable	O
project	O
of	O
CableLabs	O
(	O
Cable	O
Television	O
Laboratories	O
,	O
Inc	O
.	O
)	O
.	O
</s>
<s>
The	O
primary	O
purpose	O
of	O
the	O
EBIF	B-Device
content	O
format	O
is	O
to	O
represent	O
an	O
optimized	O
collection	O
of	O
widget	O
and	O
byte	O
code	O
specifications	O
that	O
define	O
one	O
or	O
more	O
multimedia	O
pages	O
,	O
similar	O
to	O
web	O
pages	O
,	O
but	O
specialized	O
for	O
use	O
within	O
an	O
enhanced	B-Device
television	I-Device
or	O
interactive	O
television	O
system	O
.	O
</s>
<s>
An	O
EBIF	B-Device
resource	O
(	O
file	O
)	O
,	O
i.e.	O
,	O
a	O
sequence	O
of	O
bytes	O
that	O
conforms	O
to	O
the	O
EBIF	B-Device
content	O
format	O
,	O
forms	O
the	O
primary	O
information	O
contained	O
in	O
an	O
ETV	O
Application	O
.	O
</s>
<s>
An	O
ETV	O
User	O
Agent	O
acquires	O
,	O
decodes	O
,	O
presents	O
(	O
widgets	O
)	O
,	O
and	O
executes	O
(	O
actions	O
)	O
contained	O
in	O
an	O
EBIF	B-Device
resource	O
in	O
order	O
to	O
present	O
a	O
multimedia	O
page	O
to	O
an	O
end-user	O
.	O
</s>
<s>
Other	O
types	O
of	O
more	O
specialized	O
EBIF	B-Device
resources	O
play	O
auxiliary	O
roles	O
to	O
this	O
principal	O
role	O
of	O
encoding	O
viewable	O
and	O
interactive	O
pages	O
.	O
</s>
<s>
An	O
EBIF	B-Device
resource	O
consists	O
of	O
the	O
following	O
components	O
:	O
</s>
<s>
A	O
common	O
or	O
platform	O
section	O
of	O
an	O
EBIF	B-Device
resource	O
consists	O
of	O
the	O
following	O
constructs	O
:	O
</s>
<s>
The	O
following	O
table	O
types	O
are	O
defined	O
for	O
use	O
with	O
EBIF	B-Device
:	O
</s>
<s>
In	O
addition	O
to	O
the	O
above	O
,	O
an	O
EBIF	B-Device
resource	O
may	O
include	O
one	O
or	O
more	O
private	O
use	O
tables	O
that	O
may	O
be	O
interpreted	O
or	O
used	O
by	O
specific	O
user	O
agents	O
.	O
</s>
<s>
The	O
following	O
types	O
of	O
widgets	O
are	O
defined	O
for	O
use	O
with	O
EBIF	B-Device
:	O
</s>
<s>
In	O
an	O
EBIF	B-Device
resource	O
,	O
programmatic	O
(	O
procedural	O
)	O
information	O
takes	O
the	O
form	O
of	O
byte	O
code	O
,	O
where	O
each	O
operation	O
and	O
its	O
(	O
optional	O
)	O
operands	O
is	O
referred	O
to	O
as	O
an	O
action	O
.	O
</s>
<s>
The	O
following	O
categories	O
of	O
actions	O
are	O
defined	O
by	O
EBIF	B-Device
:	O
</s>
