Programming Assignment Health Care Data Access System

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Programming Assignment-Health Care Data Access
System
CS 447 Fall2004

• Presented by
• TA Nehal Mehta

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Objective

• Computing History
• Client-Server communication model
• Need for CORBA-Distributed Computing
• Project Structure
• Hello World Sample program
• RBAC - Problem Statement
• CORBA based approach

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Computing History

• First version of computing
• limited to one computer
• No sharing
• Real opportunities not understood
• Distributed computing
• First step towards the complex problem
• Few or more computers connected.
• ltltlt lots of challenges gtgtgtgt

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Communication model

• If it is just two computers then ?? ?
• If few more computers then ?? ?

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Why CORBA architecture ??

• Objective - Uniform, location independent, secure
  access

CORBA Service
CORBA Client
Naming Service
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• So lets get to the project !!

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Project Structure

• Three phases -- Phase 1 2 3
• Incremental - phase by phase expansion
• Specification will be provided (if need more
  clarification talk to us)
• JacORB is selected software
• Java as a implementation language
• Team max two students.

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Assuming -

• Know what is IDL
• Theory part Distributed computing
• Java C/ C programming
• Developed client/server program

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CORBA - Hello World program

• Test the complexity of any software ??
• Make Hello World

• We have already developed Hello World
• You have to just execute

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Sample IDL file compilation

• ltlt Demo with Hello World Servicegtgt

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RBAC Role based access control system

• RBAC chosen as a application domain.
• What is RBAC ?
• Distributed Data access is getting more attention
• Security is a major concern
• Individual person based access is costly
• Roles are defined
• Access authority based on roles.

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Health care Data access System

• Project statement
• Develop a RBAC system for Health care data
  access.
• Possible Roles
• Doctors
• Nurse
• Patients
• ltlt Specifications will be defined phase by phasegtgt

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Project Goals

• ltltltlt One thing at a time gtgtgt
• Use of CORBA distributed architecture
• How to design useful CORBA services
• How to transfer high level specification into
  CORBA based services
• Understand the concept with Industry level
  problem
• CORBA application with active research topic
• (Not to make you master in RBAC system. But
  it is considered as a vehicle.)
• Good project to talk in your interview.

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• Phase 1
• User Login

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Design User Login Service
ORB
Login Client
Login Service
IDL Stubs
Skeletons
Login.txt

• If username-passwd-role matches?
• If username and passwd matches ?
• If Does not match ??

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Deliverables phase 1

• IDL file
• GUI based - Client code
• Service code
• Demo date will be given

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Resources

• Java available in all CNS labs
• Software JacORB installed in CNS labs
• SB, Siegel room 237 , HUB lab, Dorms.
• Project Specification on web
• Email-TA time

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Myths

• CORBA is a specifications
• JacORB is an implementation open source
• You are free to choose - Linux- Unix OR C
• but we can not able to provide support