<s>
Fluidinfo	B-Language
,	O
formerly	O
named	O
FluidDB	B-Language
until	O
early	O
2011	O
,	O
is	O
an	O
online	O
cloud	B-Architecture
data	O
store	O
based	O
on	O
an	O
attribute-value	O
centric	O
data	O
model	O
.	O
</s>
<s>
Fluidinfo	B-Language
is	O
written	O
in	O
Python	B-Language
and	O
characterized	O
by	O
a	O
publicly	O
writeable	O
schema-less	O
database	O
that	O
provides	O
a	O
query	B-Language
language	I-Language
,	O
a	O
fine-grained	O
permissions	O
model	O
and	O
promotes	O
data	B-Application
sharing	I-Application
,	O
both	O
publicly	O
and	O
in	O
groups	O
.	O
</s>
<s>
The	O
lack	O
of	O
an	O
underlying	O
RDBMS	O
structure	O
may	O
classify	O
Fluidinfo	B-Language
as	O
a	O
type	O
of	O
publicly	O
writeable	O
"	O
collective	O
database	O
"	O
.	O
</s>
<s>
Two	O
examples	O
of	O
shareable	O
data	O
stores	O
operating	O
in	O
specific	O
contexts	O
are	O
del.icio.us	B-Application
(	O
shareable	O
bookmarks	B-General_Concept
)	O
and	O
Twitter	B-Application
(	O
micro-blogging	O
service	O
)	O
.	O
</s>
<s>
Fluidinfo	B-Language
offers	O
a	O
generalized	O
shareable	O
data	O
store	O
,	O
where	O
potentially	O
any	O
piece	O
or	O
type	O
of	O
information	O
can	O
be	O
shared	O
with	O
anybody	O
else	O
,	O
if	O
desired	O
,	O
striving	O
for	O
a	O
balance	O
between	O
individual	O
,	O
group	O
and	O
communal	O
data	O
ownership	O
.	O
</s>
<s>
Author	O
and	O
blogger	O
Robert	O
Scoble	O
described	O
Fluidinfo	B-Language
as	O
a	O
"	O
database	O
that	O
acts	O
like	O
a	O
wiki	O
"	O
.	O
</s>
<s>
Fluidinfo	B-Language
emphasizes	O
three	O
aspects	O
that	O
make	O
it	O
unique	O
among	O
existing	O
public	O
data	O
stores	O
:	O
</s>
<s>
The	O
data	O
model	O
aims	O
to	O
be	O
as	O
flexible	O
as	O
possible	O
,	O
permitting	O
a	O
wide	O
range	O
of	O
information	O
to	O
be	O
stored	O
in	O
Fluidinfo	B-Language
.	O
</s>
<s>
The	O
fundamental	O
difference	O
between	O
attribute-value	O
stores	O
(	O
along	O
the	O
lines	O
of	O
EAV	B-General_Concept
schemas	O
)	O
and	O
traditional	O
RDBMS	O
is	O
the	O
lack	O
of	O
a	O
highly	O
defined	O
top-down	O
structure	O
.	O
</s>
<s>
The	O
essence	O
of	O
Fluidinfo	B-Language
consists	O
of	O
arbitrary	O
objects	O
,	O
which	O
can	O
be	O
considered	O
points	O
in	O
a	O
data	O
space	O
to	O
which	O
tags	B-General_Concept
may	O
be	O
attached	O
.	O
</s>
<s>
One	O
of	O
the	O
underlying	O
motivations	O
of	O
Fluidinfo	B-Language
is	O
to	O
make	O
working	O
with	O
information	O
more	O
natural	O
.	O
</s>
<s>
Anyone	O
can	O
attach	O
tags	B-General_Concept
to	O
any	O
data	O
object	O
,	O
but	O
only	O
people	O
with	O
the	O
right	O
roles	B-General_Concept
can	O
see	O
and	O
search	O
these	O
tags	B-General_Concept
.	O
</s>
<s>
The	O
query	B-Language
language	I-Language
was	O
designed	O
to	O
perform	O
complex	O
queries	B-Library
in	O
as	O
simple	O
a	O
manner	O
as	O
possible	O
.	O
</s>
<s>
The	O
syntax	O
is	O
superficially	O
reminiscent	O
of	O
information	B-Language
retrieval	I-Language
query	I-Language
languages	I-Language
such	O
as	O
CQL	B-Language
which	O
are	O
characterized	O
as	O
less	O
complicated	O
than	O
traditional	O
database	B-Language
query	I-Language
languages	I-Language
such	O
as	O
SQL	B-Language
.	O
</s>
<s>
The	O
query	B-Language
language	I-Language
always	O
return	O
object	O
identifiers	O
based	O
on	O
tag	B-General_Concept
values	O
,	O
using	O
the	O
predicates	O
below	O
:	O
</s>
<s>
Numeric	O
:	O
To	O
find	O
objects	O
based	O
on	O
the	O
numeric	O
value	O
of	O
tags	B-General_Concept
;	O
e.g.	O
</s>
<s>
Textual	O
:	O
To	O
find	O
objects	O
based	O
on	O
text	O
matching	O
of	O
their	O
tag	B-General_Concept
values	O
;	O
e.g.	O
</s>
<s>
Presence	O
:	O
Use	O
has	O
to	O
request	O
objects	O
that	O
have	O
a	O
given	O
tag	B-General_Concept
;	O
e.g.	O
</s>
<s>
Set	O
contents	O
:	O
A	O
tag	B-General_Concept
on	O
an	O
object	O
can	O
hold	O
a	O
set	O
of	O
strings	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
tag	B-General_Concept
called	O
mary/product-reviews/keywords	O
might	O
be	O
on	O
an	O
object	O
with	O
a	O
value	O
of	O
[	O
"	O
cool	O
"	O
,	O
"	O
kids	O
"	O
,	O
"	O
adventure	O
"	O
]	O
.	O
</s>
<s>
The	O
query	B-Library
mary/product-reviews/keywords	O
contains	O
"	O
kids	O
"	O
would	O
match	O
the	O
object	O
in	O
this	O
example	O
.	O
</s>
<s>
Logic	O
:	O
Query	B-Library
components	O
can	O
be	O
combined	O
with	O
and	O
and	O
or	O
.	O
</s>
<s>
Grouping	O
:	O
Parentheses	O
can	O
be	O
used	O
to	O
group	O
query	B-Library
components	O
.	O
</s>
<s>
For	O
each	O
action	O
that	O
be	O
applied	O
to	O
any	O
tag	B-General_Concept
or	O
namespace	O
within	O
Fluidinfo	B-Language
,	O
there	O
is	O
:	O
</s>
<s>
The	O
various	O
actions	O
that	O
can	O
be	O
performed	O
on	O
a	O
tag	B-General_Concept
are	O
read	O
,	O
update	O
,	O
create	O
and	O
see	O
.	O
</s>
<s>
The	O
combination	O
of	O
the	O
various	O
actions	O
with	O
policies	O
and	O
exceptions	O
provides	O
a	O
fine-grained	O
permission	O
model	O
within	O
Fluidinfo	B-Language
.	O
</s>
<s>
It	O
should	O
be	O
re-emphasized	O
that	O
only	O
tags	B-General_Concept
and	O
namespaces	O
have	O
permissions	O
allowing	O
for	O
various	O
levels	O
of	O
control	O
.	O
</s>
<s>
Objects	O
(	O
the	O
basic	O
Fluidinfo	B-Language
data	O
structure	O
)	O
do	O
not	O
have	O
owners	O
and	O
so	O
cannot	O
be	O
controlled	O
by	O
users/applications	O
.	O
</s>
<s>
The	O
company	O
Fluidinfo	B-Language
was	O
founded	O
in	O
the	O
UK	O
in	O
2007	O
and	O
operates	O
out	O
of	O
New	O
York	O
City	O
and	O
Barcelona	O
.	O
</s>
<s>
Fluidinfo	B-Language
launched	O
in	O
alpha	O
as	O
"	O
FluidDB	B-Language
"	O
on	O
August	O
17	O
,	O
2009	O
.	O
</s>
<s>
Developers	O
can	O
sign-up	O
for	O
access	O
to	O
Fluidinfo	B-Language
via	O
their	O
homepage	O
.	O
</s>
<s>
This	O
is	O
similar	O
to	O
the	O
types	O
of	O
RESTful	B-Protocol
API	I-Protocol
access	O
provided	O
by	O
other	O
cloud	B-Architecture
services	I-Architecture
.	O
</s>
<s>
The	O
company	O
changed	O
the	O
name	O
of	O
the	O
product	O
from	O
"	O
FluidDB	B-Language
"	O
to	O
"	O
Fluidinfo	B-Language
"	O
and	O
won	O
Top	O
Technology	O
Prize	O
at	O
the	O
2011	O
LAUNCH	O
Conference	O
.	O
</s>
<s>
During	O
SXSW	O
2011	O
,	O
Tim	O
O'Reilly	O
named	O
Fluidinfo	B-Language
as	O
his	O
favorite	O
startup	O
.	O
</s>
