Level 2 Data Flow Diagram
Request
login
Email and
Password login
Complete Registration
0.1.1 0.1.2
user name,id,
Email,password
USER fetch user id,mail
REGISTRATI LOGIN
ON Sender Id,
Email Name Receiver Id
0.1.3 and Email Confirm
Email Fetch chat data
User Id
Verification
chat 0.3
UerId avatar
User Id
Request Chat
Management
0.2.1 by user Id
0.1.4 Avatar,data
User Id Home chat_file
Management
Fetch data Fetch and Store
Profile about avatar User Id User Id
file name, and path
and Post id,Post data
Avatar Profile,data
management
profile post
0.2.3
0.2.2
Contact
Fetch data Management
Post
about profile
Post Update Management
User Id
Post id,Comment,UserId Post Id
post_comment 0.2.4
0.2.5 Email
Post
Confirmation
Comment
User Id,Email Send
Comment Update and
and mail
Reply
admin_receive_m
ail
0.6
Logout