<s>
HomeKit	B-Operating_System
,	O
also	O
known	O
as	O
Apple	O
Home	O
,	O
is	O
a	O
software	B-Architecture
framework	I-Architecture
developed	O
by	O
Apple	O
Inc.	O
,	O
made	O
available	O
in	O
iOS	B-Application
and	O
iPadOS	B-Operating_System
that	O
lets	O
users	O
configure	O
,	O
communicate	O
with	O
and	O
control	O
smart-home	B-Operating_System
appliances	I-Operating_System
using	O
Apple	O
devices	O
.	O
</s>
<s>
By	O
designing	O
rooms	O
,	O
items	O
,	O
and	O
actions	O
in	O
HomeKit	B-Operating_System
,	O
users	O
can	O
enable	O
automatic	O
actions	O
in	O
the	O
home	O
through	O
a	O
simple	O
voice	O
command	O
to	O
Siri	B-Application
or	O
through	O
the	O
Home	O
app	O
.	O
</s>
<s>
With	O
HomeKit	B-Operating_System
,	O
developers	O
are	O
able	O
to	O
create	O
complex	O
applications	O
in	O
order	O
to	O
manage	O
accessories	O
at	O
a	O
high	O
level	O
.	O
</s>
<s>
HomeKit	B-Operating_System
is	O
simply	O
a	O
communication	O
protocol	O
,	O
which	O
integrates	O
and	O
operates	O
several	O
types	O
of	O
accessories	O
within	O
the	O
home	O
.	O
</s>
<s>
HomeKit	B-Operating_System
was	O
created	O
for	O
several	O
reasons	O
.	O
</s>
<s>
HomeKit	B-Operating_System
manages	O
connected	O
home	O
appliances	O
through	O
the	O
HomeKit	B-Operating_System
Accessory	O
Protocol	O
(	O
HAP	O
)	O
.	O
</s>
<s>
Messages	O
from	O
HomeKit	B-Operating_System
are	O
continuously	O
being	O
sent	O
by	O
powered	O
devices	O
,	O
which	O
are	O
connected	O
to	O
HomeKit	B-Operating_System
.	O
</s>
<s>
Continuity	O
protocols	O
consist	O
of	O
wireless	O
technologies	O
,	O
such	O
as	O
Bluetooth/BLE	O
and	O
WiFi	O
.	O
</s>
<s>
HomeKit	B-Operating_System
uses	O
Bluetooth	B-Protocol
,	O
and	O
Wi-Fi	O
protocols	O
.	O
</s>
<s>
On	O
HomePods	B-Device
and	O
some	O
Apple	B-Device
TVs	I-Device
,	O
Thread	B-Protocol
is	O
also	O
used	O
to	O
connect	O
and	O
communicate	O
with	O
devices	O
.	O
</s>
<s>
Manufacturers	O
of	O
HomeKit-enabled	O
devices	O
are	O
required	O
to	O
enroll	O
in	O
the	O
MFi	B-Device
Program	I-Device
,	O
and	O
initially	O
all	O
HomeKit-based	O
products	O
were	O
required	O
to	O
include	O
an	O
encryption	O
co-processor	O
.	O
</s>
<s>
The	O
latter	O
requirement	O
was	O
later	O
changed	O
in	O
iOS	B-Operating_System
11	I-Operating_System
,	O
which	O
added	O
support	O
for	O
software-based	O
authentication	O
.	O
</s>
<s>
Equipment	O
manufactured	O
without	O
HomeKit	B-Operating_System
support	O
can	O
be	O
enabled	O
for	O
use	O
through	O
a	O
"	O
gateway	O
"	O
product	O
,	O
a	O
bridge	O
that	O
connects	O
those	O
devices	O
to	O
the	O
HomeKit	B-Operating_System
service	O
.	O
</s>
<s>
HomeKit	B-Operating_System
primarily	O
competes	O
with	O
smart	O
home	O
standards	O
from	O
Amazon	B-Application
and	O
Google	B-Application
.	I-Application
</s>
<s>
As	O
of	O
October	O
2019	O
,	O
Apple	O
lists	O
450	O
devices	O
compatible	O
with	O
HomeKit	B-Operating_System
,	O
compared	O
to	O
10,000	O
for	O
Google	B-Application
and	O
85,000	O
for	O
Amazon	B-Application
.	O
</s>
<s>
On	O
December	O
18	O
,	O
2019	O
,	O
Apple	O
announced	O
that	O
it	O
will	O
be	O
working	O
closely	O
with	O
Samsung	O
,	O
Amazon	B-Application
,	O
and	O
Google	B-Application
to	O
create	O
an	O
open	O
standard	O
for	O
smart	O
home	O
automation	O
called	O
Matter	B-Application
.	O
</s>
<s>
Matter	B-Application
aims	O
to	O
reduce	O
fragmentation	O
across	O
different	O
vendors	O
,	O
and	O
achieve	O
interoperability	O
among	O
smart	O
home	O
devices	O
and	O
Internet	B-Operating_System
of	I-Operating_System
things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
platforms	O
from	O
different	O
providers	O
.	O
</s>
<s>
Version	O
1.0	O
of	O
Matter	B-Application
was	O
published	O
on	O
the	O
October	O
4	O
,	O
2022	O
.	O
</s>
<s>
HomeKit	B-Operating_System
currently	O
supports	O
the	O
following	O
device	O
categories	O
(	O
an	O
extended	O
list	O
)	O
:	O
</s>
<s>
Garage	O
doors	O
,	O
locks	O
,	O
security	O
systems	O
,	O
and	O
windows	O
are	O
categorized	O
as	O
secure	O
appliances	O
,	O
and	O
require	O
a	O
device	O
with	O
authentication	O
such	O
as	O
an	O
iPhone	B-Device
or	O
iPad	B-Device
to	O
unlock	O
.	O
</s>
<s>
iPads	B-Device
(	O
supporting	O
iOS	B-Operating_System
10	I-Operating_System
or	O
later	O
)	O
,	O
Apple	B-Device
TVs	I-Device
(	O
4th	O
generation	O
or	O
newer	O
)	O
and	O
HomePods	B-Device
can	O
be	O
used	O
as	O
a	O
home	B-Protocol
hub	I-Protocol
to	O
control	O
HomeKit	B-Operating_System
appliances	O
remotely	O
,	O
grant	O
guest	O
access	O
,	O
and	O
set	O
up	O
automations	O
.	O
</s>
<s>
Support	O
for	O
Thread	B-Protocol
was	O
added	O
in	O
the	O
HomePod	B-Device
Mini	I-Device
,	O
second	O
generation	O
HomePod	B-Device
,	O
and	O
Apple	B-Device
TV	I-Device
4K	I-Device
(	O
2nd	O
generation	O
)	O
.	O
</s>
<s>
Automations	O
based	O
on	O
temperature	O
and	O
humidity	O
are	O
supported	O
by	O
the	O
HomePod	B-Device
Mini	I-Device
and	O
second	O
generation	O
HomePod	B-Device
.	O
</s>
<s>
The	O
third-generation	O
Apple	B-Device
TV	I-Device
only	O
supports	O
remote	O
access	O
.	O
</s>
<s>
The	O
use	O
of	O
iPads	B-Device
as	O
a	O
home	B-Protocol
hub	I-Protocol
was	O
deprecated	O
with	O
iPadOS	B-Operating_System
16	I-Operating_System
;	O
iPads	B-Device
will	O
not	O
support	O
Matter	B-Application
and	O
new	O
architectures	O
being	O
extended	O
to	O
Apple	B-Device
TV	I-Device
and	O
HomePod	B-Device
,	O
but	O
will	O
retain	O
all	O
previous	O
functionality	O
.	O
</s>
<s>
HomeKit	B-Operating_System
was	O
introduced	O
on	O
iPhones	B-Device
and	O
iPads	B-Device
on	O
September	O
17	O
,	O
2014	O
,	O
with	O
iOS	B-Operating_System
8	I-Operating_System
.	O
</s>
<s>
The	O
framework	O
allowed	O
third-party	O
apps	O
to	O
interface	O
with	O
HomeKit	B-Operating_System
devices	O
using	O
Siri	B-Application
and	O
allow	O
remote	O
access	O
through	O
home	B-Protocol
hubs	I-Protocol
.	O
</s>
<s>
The	O
Home	O
app	O
,	O
which	O
unifies	O
all	O
devices	O
into	O
one	O
app	O
,	O
was	O
introduced	O
on	O
iPhones	B-Device
and	O
iPads	B-Device
on	O
September	O
13	O
,	O
2016	O
,	O
with	O
iOS	B-Operating_System
10	I-Operating_System
,	O
and	O
on	O
Apple	B-Device
Watches	I-Device
with	O
watchOS	B-Device
3	O
.	O
</s>
<s>
The	O
app	O
also	O
added	O
support	O
for	O
automations	O
using	O
a	O
home	B-Protocol
hub	I-Protocol
,	O
and	O
preprogrammed	O
"	O
scenes	O
"	O
,	O
which	O
can	O
set	O
multiple	O
devices	O
using	O
a	O
single	O
command	O
.	O
</s>
<s>
The	O
HomePod	B-Device
supported	O
HomeKit	B-Operating_System
at	O
launch	O
in	O
February	O
2018	O
.	O
</s>
<s>
It	O
lacks	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
to	O
control	O
HomeKit	B-Operating_System
devices	O
and	O
instead	O
uses	O
Siri	B-Application
voice	O
commands	O
.	O
</s>
<s>
The	O
Home	O
app	O
was	O
introduced	O
on	O
Macs	O
with	O
macOS	B-Device
10.14	I-Device
Mojave	I-Device
,	O
which	O
was	O
released	O
on	O
September	O
24	O
,	O
2018	O
.	O
</s>
<s>
Fourth-generation	O
and	O
newer	O
Apple	B-Device
TVs	I-Device
can	O
control	O
HomeKit	B-Operating_System
devices	O
using	O
Siri	B-Application
voice	O
commands	O
.	O
</s>
<s>
tvOS	B-Operating_System
14	O
,	O
which	O
was	O
released	O
on	O
September	O
16	O
,	O
2020	O
,	O
added	O
direct	O
control	O
of	O
HomeKit	B-Operating_System
devices	O
in	O
Control	O
Center	O
and	O
camera	O
feeds	O
and	O
picture-in-picture	O
monitoring	O
for	O
HomeKit-enabled	O
security	O
cameras	O
.	O
</s>
<s>
Neither	O
the	O
HomePod	B-Device
nor	O
Apple	B-Device
TV	I-Device
can	O
unlock	O
or	O
open	O
secure	O
appliances	O
like	O
locks	O
.	O
</s>
