Acti
- 1. LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 1 2/19/2015 Name umair ilyas 2017-ag-5217 University of Agriculture Faisalabad
- 2. LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 2 2/19/2015 Activity diagrams represent the dynamic (behavioral) view of a system. Activity diagrams are typically used for business (transaction) process modeling and modeling the logic captured by a single use-case or usage scenario. Activity diagram is used to represent the flow across use cases or to represent flow within a particular use case. UML activity diagrams are the object oriented equivalent of flow chart and data flow diagrams in function-oriented design approach. Activity diagram contains activities, transitions between activities, decision points, synchronization bars, swim lanes and many more…
- 3. Describes how activities are coordinated. Is particularly useful when you know that an operation has to achievea number of different things, and you want to model what the essential dependencies between them are, before you decide in what order to do them. Records the dependencies between activities, such as which things can happen in parallel and what must be finished before something else can start. Represents the workflow of the process. LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 3 2/19/2015
- 4. LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 4 2/19/2015 1. Activity The Core symbol is used forActivities. Activity An activity is some task which needs to be done. Each activity can be followed by another activity (sequencing). An activity may be a manual thing, so that it’s not necessarily in a program.
- 5. 2. Transmission (Flow) When the action or activity of a state completes, flow of control passes immediately to the next action or activity state The flow of control is shown by arrow symbol. LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 5 2/19/2015
- 6. 3. Starting and Ending Nodes The source of flow of control is known as ‘Initial Node orStarting Node’. Starting Node(Mark) Destination of flow of control is called ‘Ending Node or FinalNode’. Ending Node LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 6 2/19/2015
- 7. 4. Join and Fork Join A block bar with several flows entering in it and one leaving from it. thisdenotes the end of parallel activities LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 7 2/19/2015 4.1 Synch.Bar (Join) Fork A black bar ( horizontal/vertical ) with one flow going into it and several leavingit. This denotes the beginning of parallel activities 4.2 SplittingBar(Fork)
- 8. 5. Decision and Merge Decision – A diamond with one flow enteringand several leaving. The flow leaving includes conditions as yes/ no state. Merge – A diamond with several flows entering and one leaving. The implication is that all incoming flow to reach this point until processing continues LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 8 2/19/2015
- 11. Activity diagrams tell you what is happening, but not who doeswhat. In domain modelling, this diagram type does not convey which people or departments are responsible for each activity. In programming, it does not convey which class is responsible foreach activity LokendraPrajapati(MCA)Acropolis Institute of Technology&Research 11 2/19/2015