<s>
Gyroscope	B-Language
is	O
an	O
open	O
source	O
PHP	B-Application
framework	O
and	O
a	O
code	O
template	O
system	O
for	O
building	O
web	O
backend	O
systems	O
.	O
</s>
<s>
Gyroscope	B-Language
uses	O
a	O
specific	O
and	O
yet	O
flexible	O
user	O
interaction	O
model	O
to	O
reveal	O
and	O
explore	O
the	O
inner-relations	O
of	O
a	O
database	O
.	O
</s>
<s>
The	O
Gyroscope	B-Language
UI	O
represents	O
typical	O
data	O
relations	O
such	O
as	O
one-to-many	O
,	O
many-to-many	O
and	O
foreign-key-reference	O
with	O
application-level	O
visual	O
concepts	O
.	O
</s>
<s>
Tabs	O
in	O
Gyroscope	B-Language
are	O
not	O
browser	O
tabs	O
.	O
</s>
<s>
Gyroscope	B-Language
's	O
tab	O
system	O
ensures	O
that	O
no	O
duplicate	O
tabs	O
can	O
open	O
for	O
the	O
same	O
record	O
.	O
</s>
<s>
The	O
Gyroscope	B-Language
backend	O
runs	O
on	O
all	O
versions	O
of	O
PHP	B-Application
.	O
</s>
<s>
Developer	O
features	O
such	O
as	O
the	O
Code	O
Generator	O
requires	O
PHP	B-Application
5.4	O
and	O
above	O
because	O
of	O
the	O
use	O
of	O
parent	O
scoping	O
in	O
anonymous	O
functions	O
.	O
</s>
<s>
On	O
the	O
client	O
side	O
,	O
Gyroscope	B-Language
supports	O
all	O
the	O
XHR-enabled	O
web	O
browsers	O
.	O
</s>
<s>
Features	O
from	O
modern	O
browsers	O
progressively	O
enhance	O
the	O
Gyroscope	B-Language
user	O
experience	O
.	O
</s>
<s>
Gyroscope	B-Language
is	O
agnostic	O
of	O
the	O
data	O
layer	O
.	O
</s>
<s>
Any	O
data	O
source	O
that	O
supports	O
CRUD	O
operations	O
can	O
drive	O
a	O
Gyroscope	B-Language
application	O
.	O
</s>
<s>
Gyroscope	B-Language
uses	O
the	O
Loader-Content-Handler-Handler	O
(	O
LCHH	O
)	O
architecture	O
instead	O
of	O
explicit	O
Model-View-Controller	O
(	O
MVC	O
)	O
.	O
</s>
<s>
These	O
JavaScript	B-Language
handlers	O
then	O
sends	O
XmlHTTPRequestObject	B-Protocol
(	O
or	O
AJAX	B-Device
)	O
requests	O
to	O
Server-side	O
Handlers	O
.	O
</s>
<s>
The	O
Server-side	O
scripts	O
then	O
perform	O
updating	O
,	O
insertion	O
or	O
deletion	O
functions	O
before	O
piggybacking	O
the	O
updated	O
View	O
back	O
to	O
the	O
original	O
Loader	O
via	O
AJAX	B-Device
callback	O
and	O
DOM	B-General_Concept
update	O
.	O
</s>
