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1. INTRODUCTION

1.1 CLOUD COMPUTING

The cloud computing is a model for enabling convenient on demand, network access to
shared pool of resources (network, server, storage, application). The technology of distributed
data processing in which some scalable information resources and capacities are provided as a
service to multiple external customer through internet.
The main aim of cloud computing is move to desktop computer to service oriented
platform. The cloud computing application, data and resources are provide to users as a services
over the web. The service provided may be based on low in cost, massively scalable, on demand
based.

Figure1: Basic Cloud Storage Model

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1.2 REASON FOR ADAPTING CLOUD COMPUTING

On Demand Service
A consumer can have a provision of computer capabilities, such as a server time and
network storage, as needed automatically without requiring human interaction with each service
provider.
Working from Anywhere
The cloud computing is a model driven methodology that provides configurable
computing resources over the internet service. The cloud resources can be accessed from
anywhere in the world.
Rapid Elasticity and Cost Saving
The cloud capabilities can rapidly scale in and out the resource quickly. The main goal of
cloud can eliminate the capital and operational cost. Because it provides various pooling of
resource.

1.3 USAGE OF CLOUD IN THE HOSPITAL

The hospital environment, have multiple computers that can be used in medical rooms.
Each room needs proper network accessibility, hardware and software which is used to upload,
store and retrieve the patient information or other medical data. The electronic patient health
record contains the overall history of a patient.
Scalability
Real time health records are generated. Each hospital must keep the medical records for
at least 15 years.
Mobility
Cloud can increasing the demand of physicians time. The physicians are needed to access
the patient record in a remote way. So that doctors can access the patient record easily and verify
the patient situation.

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Sharing
Cloud computing can provide the better relationship between the patient and doctor. The
healthcare service provider can access the complete patient information easily through online.
The electronic medical record in used to reduce the repeat diagnostic tests, saving time, memory,
and patient stress.
Many organizations now using daily updatable or changeable data. For keeping data both
security and usability cloud computing provide the environment to store data on different cluster.
Various organizations (e.g., Hospital authorities, industries and government organizations etc)
freeing person specific data, which called as private sensitive information. They provide
information of privacy of persons. The preserving privacy is protecting for individual’s sensitive
information on a public platform. Unluckily de-identification of persons even by neglecting
denotative identity like name, SSN, Voter Id number and license number. Data anonymization is
the best way to preserve privacy over the personal privacy sensitive information. The data
anonymization approach is very efficient technique but if the scalability of the data set like
private sensitive information is increased the anonymization technique fails to preserve privacy.
So scalable big data privacy preservation in cloud can be provided.
The purpose of this project is to develop an environment to provide privacy over the
personable sensitive data. The Major aim of the work is to develop a tool for patients to give
medical care providers more insight into your personal health information. Main aim of privacy
is provide secure data and for external knowledge. This application can helps to view the
patient’s health records only for authorized persons.