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Communications Architecture between devices -

At the high level, the TheTable reservation management system is composed of 6 systems that

are interconnected by a communication network that is rooted in the 7 layers of the OSI model

The 6 systems that comprise the ecosystem are !

" TheTable mobile application

# TheTable watch

$, TheTable appserver

%TheTable core databases

& TheTable restaurant back!end web portal management app

6 TheTable restaurant web portal

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A high level depiction of the components and the communication network that connects them is

attached here as the Communication Architecture High Level Diagram'

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The diagram above denotes 6 interfaces that will be discussed in the ne(t section

10 layer model breakdown of architecture

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The communications architecture can be decomposed using the ") layer model of information

systems *evel $ represents the communication network services that are re+uired to interconnect

the different hardware processing and storage platforms that are at level %- of the system *evel

# represents the physical mediums of connectivity to form a basis for the *evel $ connectivity

services A description of the communication architecture will also re+uire a description of the

framework services and common software and enterprise services that are part of the overall

information system

Interface 1 and ! "etween the #he#able watch and the i$% a&&lication 'Interface 1( and

the Android a&&lication 'interface () #his interface has the following com&onents -

*evel #! .luetooth /0 operating at the #&123 fre+uency

*evel $ ' .luetooth Architecture using the .luetooth Stack

*evel &46 ' The watch utili3es a proprietary developed processing framework to populate packets

formatted according to theI555 )#"&" .luetooth 8A9 specifications The packets are

interpreted via the Android platform:s .luetooth A8I framework and the iOS platform:s ;ore

.luetooth framework to yield information that can be used by the application

that is present in the watch and the mobile

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application OS

The .luetooth architecture can be summari3ed within conte(t of the 7 layer OSI model as

follows *iu- !

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The portion representing the .luetooth and is the common portion that sets the

*evel $ and *evel # restrictions on the application frameworks and middleware *evels & and 6-

residing on the watch and mobile application operating systems

Interface * ! "etween the #he#able mobile a&&lication and the #he#able a&&lication

server)

*evel #! Internet connectivity via wifi between the mobile devices and the app server ifi is

rooted in the I555 )#"" standards and uses the #% 123 ?20 /adio band

*evel $ ' This is composed of internet connectivity services using the 7 layer OSI model with

the following decomposition '

*ayer 9ame OSI 8rotocols

7 Application 2TT8

6 8resentation @851

& Session /8;

% Transport T;8

$ 9etwork Ip v%

#

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download the S

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web services hosted on the app server and the restaurant management portal to directly access

the database and run SE* +ueries on it would leave the entire system e(tremely prone to hackers

who might e(ploit security vulnerabilities to carry out a SE* inBection attack In order to protect

the system and speed up +uerying4retrieval and ensure that the databases are themselves kept up

to date it is preferable to use a

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Image from Oracle-

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side and hence it:s operation is very similar to Interface % between the appserver on the user:s

side and the core database-

*evel # ' Internet connectivity for which the medium would be wired optical fiber that links the

servers hosting the applications in regional data centers with the core data center A ") 1igabit

optical fiber *# connection would be classified under I555 )#$ae

*evel $ 'This is composed of internet connectivity services using the 7 layer OSI model with the

following decomposition '

*ayer 9ame OSI 8rotocols

7 Application 2TT86 8resentation @851

& Session /8;

% Transport T;8

$ 9etwork Ip v%

#

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*evel $ ' This is composed of internet connectivity services using the 7 layer OSI model with

the following decomposition '

*ayer 9ame OSI 8rotocols

7 Application 2TT8

6 8resentation @851

& Session /8;

% Transport T;8

$ 9etwork Ip v%

#

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/eferences !

httpF44docsoraclecom4cd45#"76%G)"4web""""4e"$7$&4dbwshtmHS/8A#

httpF44progtutorialstripodcom4.luetoothGTechnologyhtm

http://docs.oracle.com/cd/E21764_01/web.1111/e13735/dbws.htm#WSRPA289http://docs.oracle.com/cd/E21764_01/web.1111/e13735/dbws.htm#WSRPA289