Kiran Kumar Jonnada CLA 2 Presentation (Without Audio)

2. Agenda
• The purpose of this presentation is to summarize findings from the
CLA2 report.
• It discusses the findings from other assessments as well throughout
the course.
• Major concepts from the course are discussed.
• Finally, analysis is done on the basis of understanding gained
throughout the course.

3. Executive Summary
• The presentation is about major findings from the course through
week 1 to 8.
• It discusses web service composition which includes RESTful services,
simple object access protocol (SOAP) and the WSDL.
• It also discusses the findings about data flow and controls flow such
as the BPEL and BPMN.
• Findings about the service oriented architecture and service
component architecture are described.
• Lastly, conclusions based on the concepts from various assignments
are provided.

4. Web Services
• Web services are the information exchange systems that are based on
XML and use the internet (Paik et al., 2017).
• They enable parties to communicate with each other.
• One client side sends a request and receives a response from the
other side.
• They can be implemented using various programming languages such
as Java.
• Strategic consideration needs to be done when choosing the
implementation language to use.

5. Service Oriented Architecture
• An architecture provides a design that should be followed when
creating something.
• The service oriented architecture defines the way developers should
reuse software components.
• It also provides guidance on making the software components
interoperable using various interfaces.
• The SOA generally, enables developers to have quality web services
and software applications that meet the needs of businesses.

6. SOAP and WSDL
• SOAP is the short form of simple object access protocol.
• WSDL means web services description language.
• The SOAP is a messaging protocol which enables echange of
information between two sides over the internet.
• The language used in the information exchange is XML.
• WSDL is mainly used for describing the functionalities of web services
to provide clear understanding.

7. Data Services
• Data is involved in the
communication that happens in web
services.
• There is an interaction between
servers and clients which involves
sending requests and receiving
responses.
• Restful services are used to offer a
solution to web services using JSON
and HTTP.

8. Control Flows
• Flow is a process of moving from one point to another.
• Web services and software applications involved have flows that
control their action.
• These include the business process execution language (BPEL) and the
business process model and notation (BPMN).
• The BPEL is a language that uses XML to give actions within business
processes when working on the web services (Hu, Wu, & Li, 2020).
• The BPMN is a type of a flow chart that shows the steps of a business
process from the start to the end.

9. RESTful Services
• RESTful services are web
services that are based on the
representational state transfer
(REST) architecture.
• It provides the GET, POST, PUT,
and DELETE services.
• These requests are sent to the
server.
• Client gets the response within
a few seconds.

10. BPMN Elements
• The business process model and notation (BPMN) is a type of
flowchart that shows a process.
• It has elements which enable users to have a complete understanding
of the flowchart.
• The elements include flow objects, swimlanes, artifacts, and
connecting objects.
• These objects make it easy to show the step by step process of an
activity.

11. Data Flows
• Web services are generally information exchange systems between
clients and servers.
• When a server sends a request, there is flow of data from one point
to another.
• There are different data-flows paradigms that are used to ensure data
gets to the recipient as required.
• The most common data-flows paradigms are the blackboard and
explicit data flow.

12. Mashups Data Flow
• Mashups are described as web pages that use content from different
sources to create a new web service.
• The advantage of mashups in data flow is that they create an
interaction between multiple sources.
• Also, they reduce the cost of development as developers ca source
features from existing applications.
• They improve the quality of the web services by sourcing multiple
pages to create a new and improved web service.

13. Data Services Implementation
• Data services implementation is beneficial to various stakeholders.
• It is known for improving business processes thereby solving most of
the problems that people encounter in business.
• The implementation method is done using programming languages
such as Java.
• Developers choose the language of implementation based on the
application they develop and the security, among other features.
• Generally, data services implementation improves communication
over the internet.

14. Service Component Architecture
• The major finding about service component architecture (SCA) is that
it involves instructions that provides a model to build applications.
• It enables developers to know the type of applications they should
build using the available programming languages (Fernandes et al.,
2021).
• It helps in improving the quality of applications because it follows a
given architecture.
• The SCA provides specifications that follow the service oriented
architecture.

15. Design Features
• Web services and software applications development should be done
while following the SCA and SOA.
• This helps to improve the quality of the application.
• The major design feature that should be provided is the development
of an application that is secure.
• Second feature is that it should facilitate communication between the
client and server.
• The design should enhance fast communication to have less time to
wait for the responses.

16. Conclusion
• Web services is a wide topic with many compositions.
• The most important compositions are the WSDL, XML, HTTPS, SOAP,
and RESTful services.
• BPEL and BPMN are useful for describing a business process thereby
improving the services.
• Major design features to ensure when developing the services include
security, and responsiveness.
• Communication between the server and the client should be fast.

17. References
• Fernandes, M., Canito, A., Mota, D., Corchado, J. M., & Marreiros, G.
(2021, October). Service-Oriented Architecture for Data-Driven Fault
Detection. In International Symposium on Distributed Computing
and Artificial Intelligence (pp. 179-189). Springer, Cham.
• Hu, C., Wu, X., & Li, B. (2020). A framework for trustworthy web
service composition and optimization. IEEE Access, 8, 73508-73522.
• Paik, H-Y, Lemos, A. L., Barukh, M. C., Benatallah, B., & Natarajan, A.
(2017). Web service implementation and composition techniques
(1st ed.). Springer Publishing ISBN 978-3-319-555409