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Analysing Use Case Diagrams in a Calculus of Context-aware Ambients
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Use case diagrams are an excellent tool for capturing and analyzing the ...

Use case diagrams are an excellent tool for capturing and analyzing the functional requirements of a system under development. Context-aware use case diagrams are an extension of use case diagrams to cater for both the functional requirements and the context-awareness requirements of context-aware and pervasive systems. They provide (graphical) notations for specifying, visualizing and documenting the intended behavior of a context-aware system at an early stage of the system development life-cycle. This paper proposes an approach to analyzing context-aware use case diagrams usind a Calculus of Context-aware Ambients (CCA). An algorithm is proposed that translates a context-aware use case diagram into a CCA process. This process can then be analyzed using the CCA tools such as the simulator ccaPL which enables the execution of CCA processes and the model-checker ccaSPIN that can check automatically whether a CCA process satisfies a desired property, e.g. deadlock freedom and reachability. The proposed approach is evaluated using a real-word example of a context-aware pedestrian collision avoidance system.

Subject:
Career and Technical Education
Material Type:
Case Study
Author:
أحمد الشهي
Date created
14/03/2017
Big Data Modelling
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Capture the requirements of big data will be valuable data and information ...

Capture the requirements of big data will be valuable data and information in our systems and the information is the most expensive source in our life and smart using of data and information can produce important resource such as oil or gold.

Subject:
Career and Technical Education
Material Type:
Activity/Lab
Author:
أحمد الشهي
Date created
16/02/2017
Blue-ray Technology
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هو نوع من ادوات التخزين المستخدمة في الكمبيوتر والتي تستخدم لحفظ ملفات ...

هو نوع من ادوات التخزين المستخدمة في الكمبيوتر والتي تستخدم لحفظ ملفات ذات احجام كبيرة وبتكلفة اقل

Subject:
Career and Technical Education
Material Type:
Activity/Lab
Author:
علي المصعبي
Date created
13/03/2017
Designing the static structure of the Navigation system using the context-aware class diagram
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The services of the navigation subsystem are a series of global services ...

The services of the navigation subsystem are a series of global services as a standard system worldwide to produce a virtual platform guide for drivers. The main provider of CIs is GPS, which is used to provide navigation subsystems for monitoring a variety of systems and updating changes to contexts

Subject:
Career and Technical Education
Material Type:
Case Study
Author:
أحمد الشهي
Date created
15/03/2017
An Extension of the Use Case Diagram to Model Context-aware Applications
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Context-aware applications have the ability to sense the context of the user ...

Context-aware applications have the ability to sense the context of the user and use the sensed context information to make adaptation decision in response to changes in the user’s context. Hence, besides the functional requirements, context-awareness is an important requirement of such applications. Although, the use case diagram of the Unified Modeling Language (UML) is considered as the industrial de-facto standard for modeling the functional requirements of applications, it is insufficient to accurately capture context-awareness requirements. This paper proposes an extension of the use case diagram with new notations to cater for the modeling of context-aware applications. The proposed extension called context-aware use case diagram is more expressive and enables a clear separation of concerns between context-awareness requirements and functional requirements which is helpful during requirements capture and analysis of large scale or complex context-aware applications.

Subject:
Career and Technical Education
Material Type:
Case Study
Author:
أحمد الشهي
Date created
14/03/2017
Interactive children's book
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No Strings Attached
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Interactive children's books are a subset of children's books that require participation ...

Interactive children's books are a subset of children's books that require participation and interaction by the reader. Participation can range from books with texture to those with special devices used to help teach children certain tools.

Subject:
Education
Material Type:
Reading
Author:
huda alyami
Date created
09/03/2017
The Modelling Specifications of Security Requirements for Context-Aware Systems
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Today Context Aware Systems are widely used around the world, which provide ...

Today Context Aware Systems are widely used around the world, which provide user the awareness of different environmental objects. However, UML and XML become more usable for a set of applications types and suitable for intelligent systems as well as XML documentation still limited of tagging all Context Aware Systems requirements. The main objective of this research investigation is the mapping conversion between UML diagrams to XML documents to specify the specific requirements of the privacy purposes for Context Aware Systems.

Subject:
Career and Technical Education
Material Type:
Case Study
Author:
أحمد الشهي
Date created
14/03/2017