object modelling 2 – Assignment Help | coursefighter.com

object modelling 2 – Assignment Help | coursefighter.com

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Assignment 2Value: 20%Due date: 16-May-2015Return date: 08-Jun-2015Submission method optionsAlternative submission methodTaskThis assignment is in continuation to the case study in Assignment 1.Question 1: Sequence DiagramDefine sequence diagram in UML. Draw sequence diagram for UCs in Question 1 and Question 2 of Assignment 1.Question 2: Communication Diagram and Operations ContractDescribe the basic differences of communication diagram with sequence diagram. Using use case Start Line run, draw communication diagrams for operations getRunDetails and Write Operations contract for LineRun.start()Question 3: Class diagramCreate a design class diagram from the seven interaction diagrams created in Question 1 and 2. Remember to show generalisation and inheritance classes. Only show class diagram features that can be derived from the objects shown in your diagrams.Question 4: Discuss Grasp PatternsDiscuss the following Grasp patterns that have been used to construct the interaction diagrams in your solution -ExpertCreatorLow CouplingHigh CohesionControllerDiscuss one good application of the pattern from the interaction diagrams under a heading for eachpattern. Submit your discussion with the pattern heading, followed by your 3 – 5 lines of discussion.Online submission via Turnitin is required for this assignment.RationaleThis assignment is assesses your object modelling concept and understanding of the design techniques and processes contained in this subject. It has been designed to ensure that you are engaging with the subject content on a regular basis.More specifically it seeks to assess your ability to:create class diagrams and dynamic models (sequence, collaboration, state and activity diagrams) with UML notationcompare the syntax, semantics and pragmatics of UML.design the system design with different design patterns; andperform modelling of various aspects of systems of a quality that would make it useful in a system development project.Marking criteriaNoCriterionMax Possible1Understanding of sequence diagram and correctness of the diagram with rationale.252Comprehensive understanding of the concept of sequence & communication diagram (5 marks) Correctness of the Communication diagram with rationale (10 marks) and Operations contract (10marks)253Correctness of the diagram.154Correct and concise description with rationale15Total marks80Total percentage of overall subject20%

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