BUZZ-ME
LOCATION BASED DATING SERVICE
Arun Ponnusamy
Abhisheak Iyer
Deepak
Swathi Gangisetty
OBJECTIVES

To implement a simple and dependable location
based dating service on the Google Android platform.
PLATFORM : Google Android .
LANGUAGE : JAVA
Database
: MySQL
LOCATION BASED SERVICE

Location Based Services (LBS) are information services accessible
with mobile devices through the mobile network and utilizing the
ability to make use of the location of the mobile device .
BACKGROUND

A location based service can be categorized either as
 CARRIER- CENTRIC : User subscribes to a service
and gets alerts periodically or whenever a match is
found according to their preferences .
Ex: Meetmoi , dodgeball etc
 USER CENTRIC : The user takes control of the
experience and decides whom to approach .
Ex: Buzz-Me!
PS : With the passing of the Can Spam Act in 2005, it
became illegal in the United States to send any
message to the end user without the end user
specifically opting-in.
MEET MOI – THE FACTS
They are the leader !
 Meetmoi offers a location based service that allows
users to receive profiles, and then communicate with
complete anonymity through text messaging.
 Meetmoi is actually a website .
 Its not GPS based . User is expected to enter his
current location. You could fool around with profiles
in Atlanta from London or Jupiter !

MEETMOI – THE LITTLE KNOWN FACTS !

1.
2.
3.
http://meetmoi.com/privacy
We collect demographic information on our
members. We don't currently collect credit card
information, although in the future we intend to.
Please be aware that when you send an email to a
user from our website, your email address will be
revealed to them. All other information you provide
us will be revealed in your profile and be accessible
to other members.
In the course of using our site, we automatically
track certain information such as your IP addresses
and email addresses.
MEETMOI – CONTD …
If you choose to use our referral service to tell a friend
about our site, we will ask you for your friend's name
and email address. We will automatically send your
friend an email inviting him or her to visit the site.
MeetMoi stores this information for the sole purpose
of sending this email and tracking the success of our
referral program.
 We may send them a reminder email in the future.
Your friend may contact us at Customer Service to
request that we remove this information from our
database!!

HIGH LEVEL ARCHITECURE
GPS based Location
System
Update
Real Time Database
Access
FrontEnd Devices
Use Case Diagram
User1
DB
GPS system
Register
Login
Login Successful
Update Location
Details every 1 Min.
Query the DB based on preference
criteria
Fetch the results and overlay on
Google maps
Choose a user shown on the map and initiate chat
Accepts the date request negotiated through the chat client
Negotiate the landmark for dating
View & Select landmarks on Google Map
View & Select landmarks on Google Map
Mark these users as “unavailable” in the DB
Relay distance of User2 periodically
Relay distance of User1 periodically
User2
User Profile creation
Simple Profile creation: Get the user’s screen name,
password, Name, e-mail, age, sex.
 The user should set his/ her preferences.
 No profile matching done.
 The user takes full responsibility for his/ her choices.
 Simple privacy issue addressed: user should be able
to add people to his/ her “Ignore List”.
 The user’s Location details are updated every 1
minute in the database.

Database schemas
User_Profile
Username
Password
First Name
Last Name
Age
User_Preference
Username
Age_LowerRange
Age_UpperRange
User_IgnoreList
Username
UsersToBeIgnored
User_Location
Username
Latitude
Longitude
Available
Gender
Sex
Profile Picture URL
E-Mail
Query Processing

Perform range queries based on user settings in the
UI.
User can specify what grid range he/she wants.
 User can specify how many users he/she wants.

Filter the query result based on user preferences and
ignore list.
E.g: Select username from User_Location where
latitude>(curr.Username_Latitude-2) and
(curr.Username_Latitude+2 ) and
longitude>(curr.Username_Longitude-2) and
(curr.Username_Longitude+2 )

Query Results
Users shown on the map is live in a time frame of 1
minute.
 The User details are overlaid on Google Maps.

Profile Picture is also displayed.
 The e-mail/chat id of the user can then be used to ping
and ask whether the other user is interested in a date.

Database Challenges

Currently exploring Web Services to provide query
processing.


Low Overhead on Mobile.
Simple solution, use TCP sockets for small scale
scenario.
INTERNAL CHAT CLIENT
The main reason to implement an internal chat client
is to eliminate the need for having to use SMS or call
as the means of communication.
This provides an additional level of security as the
service provider enables communication between
two subscribers without having to reveal the contact
details of one to the other.
Besides we also perceive it’s a good thing to keep the
SMS inbox excluded from the dating service . As long
as the user is logged into the application he can
contact/chat with another person .
IMPLEMENTATION
Set
of streaming XML protocols (XMPP – Extensible
Messaging and Presence Protocol) and technologies
that enable any two entities on the Internet to exchange
messages, presence, and other structured information
in close to real time.
Instant
Messaging (IM) that offers functionality
similar to legacy IM services such as Yahoo, MSN, ICQ,
AOL.
ADVANTAGES OF JABBER
Open
Decentralized
Secure
Extensible
Flexible
Smack is an Open Source XMPP (Jabber) client library
for instant messaging and presence. A pure Java library,
it can be embedded into your applications to create
anything from a full XMPP client to simple XMPP
integrations such as sending notification messages and
presence-enabling devices.
QUESTIONS