NETE4631 Mobile Cloud Computing

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NETE4631Mobile Cloud Computing

• Lecture Notes 10

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Security Mapping - Recap

• Determine which resources you are planning to
  move to the cloud
• Determine the sensitivity of the resources to
  risk
• Determine the risk associated with the particular
  cloud deployment type (public, private, or hybrid
  models) of a resource
• Take into account the particular cloud service
  model that you will be using
• If you have selected a particular cloud provider,
  you need to evaluate its system to understand how
  data is transferred, where it is stored, and how
  to move data both in and out of the cloud

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Securing Approach Recap (2)

• Techniques for securing applications, data,
  management, network, and physical hardware
• Comply to compliance standards

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_aaS applications Recap (3)

• IDaaS (Identity as a Service )
• CaaS (Compliance as a Service)

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Lecture Outline

• Mobile market
• Adopting mobile cloud applications
• Mobile web services
• Service discovery
• Push technology

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Mobile Market
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Number of Subscribers
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Adopting Mobile Cloud Applications

• One application on cloud can be accessed by
  multiple types of clients.
• Mobile cloud computing
• A model where processing is done in the cloud,
  data is stored in the cloud, mobiles device
  serves as a presentation platform or a display
• Advantage of cloud apps to mobile cloud
• Thinner devices -gt less processing, consume less
  power, and have better battery life
• Avoidance of vendor lock-in.

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Adopting Mobile Cloud Applications (2)

• Customized clients and GUIs for each specific
  type of client. e.g.,
• Featured phones with light weight operating
  systems.
• Smart phones with sophisticated operating
  systems. e.g., iOS, Android, Windows Mobile,
  Symbian.
• Less processing power, memory and storage but
  needs to be aware of bandwidth and display
  resolutions.

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Android Market
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Apple Mobile Me

• Picture from Alexandra Institute

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iPhone Application Hosting by Amazon

• Picture from Alexandra Institute

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iAWS Manager

• Picture from Alexandra Institute

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Mobile Web Services

• Mobile web service are those in which information
  is transferred between applications (browser) and
  services over the internet.
• Can make use of specific information about the
  context of the device and its users.
• Physical context
• Logical context

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SOA Approach to processing requests using
contextual data from mobile users
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Service Discovery

• Web services are useful only if they can be
  discovered by mobile devices and accessed by
  mutually supported protocol.
• WS-Discovery from OASIS Standard
• WSDL (Web Service Description Language)
• UDDI (Universal Description, Discovery, and
  Integration)
• SOAP (Simple Object Access Protocol)

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Mobile Web Services (2)

• Mobile interoperability needs to be addressed in
  terms of
• Variable screen size and resolution.
• Slow network transmission.
• Different methods of navigation through the
  interface.
• Vendor lock-in
• Exclusion of support for certain file types such
  as PDF, and cookies, and technologies such as
  Adobe Flash.
• Onerous transmission costs.

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Homepage of New York Times
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Push Technology

• Can make use of push services for
• Automated software updates and installations
• Instant messaging
• Email
• RSS services
• Performing synchronization of data with cloud
• Can use SMS services in case of unavailability of
  internet.

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BlackBerry Push Service
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References

• Chapter 20, 21 of Course Book Cloud Computing
  Bible, 2011, Wiley Publishing Inc.