Cloud and mobile technologies Lecture #10

CONCEPTS
DEPLOYMENT MODELS
SERVICE MODELS
INFRASTRUCTURE AS A SERVICE (IAAS)
PLATFORM AS

A SERVICE (PAAS)
SOFTWARE AS A SERVICE (SAAS)
 ADVANTAGES, DISADVANTAGES
CLOUD STORAGE
MOTIVATION
WHAT IS MOBILE CLOUD COMPUTING?
WHY IS MOBILE CLOUD COMPUTING?
ARCHITECTURE
ADVANTAGES
APPLICATIONS

access the applications as utilities, over the Internet. It allows

us to create, configure, and customize applications online.

With Cloud Computing users can access database resources via the internet from anywhere for as long as they need without worrying about any maintenance or management of actual resources.

or Internet.
In other words, we can say that Cloud

is something,
which is present at remote location.
Cloud can provide services over network, i.e.,
on public networks or on private networks, i.e.,
WAN, LAN or VPN.
Applications such as e-mail, web conferencing,
customer relationship management (CRM),
all run in cloud.
 

and accessing the applications online.
It offers online data storage,

infrastructure and application.

Cloud Computing is both a combination of software and hardware based computing resources delivered as a network service.

scene making the cloud computing feasible and accessible to end

users. Following are the working models for cloud computing:

1. Deployment Models
 

2. Service Models
 

to the cloud, i.e., how the cloud is located? Cloud

can have any of the four types of access: Public, Private, Hybrid and Community.

to be easily accessible to the general public. Public cloud

may be less secure because of its openness, e.g., e-mail.
 

PRIVATE CLOUD : The Private Cloud allows systems and services to be accessible within an organization. It offers increased security because of its private nature.

 
COMMUNITY CLOUD : The Community Cloud allows systems and services to be accessible by group of organizations.
 

HYBRID CLOUD : The Hybrid Cloud is mixture of public and private cloud. However, the critical activities are performed using private cloud while the non-critical activities are performed using public cloud.
 

which the Cloud Computing is based. These can be categorized

into three basic service models as listed below:

(PaaS)

3. Software as a Service (SaaS)
 

infrastructure as an on demand scalable service.
IaaS provides access to

fundamental resources such as physical machines, virtual machines, virtual storage, etc.

Usually billed based on usage
Usually multi tenant virtualized environment
Can be coupled with Managed Services for OS and application support

applications, development & deployment tools, etc.

PaaS provides all of

the facilities required to support the complete life cycle of building and delivering web applications and services entirely from the Internet.
Typically applications must be developed with a particular platform in mind

Multi tenant environments
Highly scalable multi tier architecture

applications as a service to end users.

SaaS is a software

delivery methodology that provides licensed multi-tenant access to software and its functions remotely as a Web-based service.
Usually billed based on usage
Usually multi tenant environment
Highly scalable architecture

format compatibility
Unlimited storage capacity
Increased data reliability
Universal document access
Latest version availability
Easier

group collaboration
Device independence

low-speed connections
Features might be limited
Can be slow
Stored data can be

lost
Stored data might not be secure

with the account in the cloud.

Log onto any computer with

Wi-Fi to find your content

become an essential part of
Dream of “Information at your fingertips

anywhere anytime”,

When compared to conventional information processing devices these Mobile devices are lack in resources.
Mobile Cloud Computing (MCC)

Motivation

Soultion

both the data storage and data processing happen outside of

the mobile device.
Mobile cloud applications move the computing power and data storage away from the mobile devices and into powerful and centralized computing platforms located in clouds, which are then accessed over the wireless connection based on a thin native client.
MOBILE CLOUD COMPUTING = MOBILE COMPUTING + CLOUD COMPUTING

(battery life, storage, bandwidth etc.)
Cloud computing offers advantages to users

by allowing them to use infrastructure, platforms and software by cloud providers at low cost and elastically in an on-demand fashion.
Mobile cloud computing provides mobile users with data storage and processing services in clouds, obviating the need to have a powerful device configuration (e.g. CPU speed, memory capacity etc), as all resource-intensive computing can be performed in the cloud.

and availability
Dynamic provisioning
Scalability
Multi-tenancy
Ease of Integration