Презентация на тему Mobile Applications and Web Services

introduce the basics of mobile Web service development, to

discuss Web service technologies and how they are building into and are integrated in distributed mobile and Web applications.

The second aim is introducing the mechanisms for representing, manipulating and querying structured data (XML) and semantic data (RDF/s, OWL), it also includes data mining techniques and the concept of connected services.

Related toolkits and applications and their use will be discussed.

to process data, and capabilities to interact with entities

in the physical and virtual worlds. (services)
Communication Network:
AT&T network as an example1
Currently carries 18.7 Petabytes of data traffic on an average business day (PB = 10 ^15 bytes),
Nearly 5 Billion calls per day.
Cisco Prediction2:
295 Petabyte per month (mobile-to-mobile communications) by 2015,
By 2020 this will be 1000 more compared with 2010.
Challenges include volume, volatility, complexity, reliability, privacy, security, and processing.

1 source: Mahmoud Daneshmand, AT&T, Intelligent Network Operations and Management, Keynote Talk, IEEE ISCC 2011.
2 source: DoCoMo and Huawei.

volumes of data, dynamic and sometimes unreliable resources;
more dynamic

and transient resources and subject to quality changes
scalability of the solutions
heterogeneity and interoperability issues - more devices are contented, more diversity
express-ability and extensibility of semantics and metadata
more autonomous processes (integration, aggregation, filtering, ...) are required
management of the resources
scarcity of: bandwidth, power, energy, addressing and naming schemes, and operation cost.

Wien

not just about volume
How can we efficiently deal with:
Large

amounts of (heterogeneous/distributed) service?
Both static and dynamic data/service?
In a re-usable, modular, flexible way?
Integrate different types of services
Provide quality-aware and context-aware solutions

Adapted from: M. Hauswirth. A. Mileo, Insight, National University of Ireland, Galway.

different QoS requirements
…

To support future data/functionality requirements information communication

networks

services to other applications.
Thee applications access Web Services via

standard Web Formats (HTTP, HTML, XML, and SOAP), with no need to know how the Web Service itself is implemented.
Web services provide a standard means of interoperating between different software applications, running on a variety of platforms and/or frameworks.

resource descriptions
re-usable descriptions and vocabularies
resource description frameworks
structured data, structured

query

Sang Shinn, javapassion.com

and common vocabularies
RDF
Ontology languages, ontology design and management and

Linked-data
What is an ontology?
Ontology representation
Web Ontology Language (OWL)
Ontology design and engineering
Linked Data
RDF/JSON, Turtle

Service Platforms
Semantic Web services
Service modelling
Service composition and business

logic

Cloud-based data and services
Software-as-a-service (SaaS)
Operator platforms and Network-as-a-Service (NaaS)

delivery in mobile communication systems
Wireless Application Protocols
Constrained Application

Protocol (CoAP)
Location-based services
Examples and Applications