uml

问题 I am currently stuck with creating a UML sequence diagram. The diagram will only have one Actor which is staff, staff needs to instate a member once they are informed by the member and this goes through the database as well. 1 actor- Staff Classes- Library information system- Interface Member Database Please could you help me with the sequence diagram as I am currently stuck. Staff needs to add member to library system once the member has informed the staff to add him or her to to the library

问题 In sequence diagrams, how would you represent an event triggered listener? It is not just a regular method call, so displaying like that would not seem correct. I try to make a sequence diagram of a system including a JMS listener. I could start the lifeline with the send() call of the system to the JMS queue (displaying the system calling send() as a business actor), or I could start the lifeline at the onMessage() call. (displaying JMS Queue as a business actor) Or should I just ignore the

问题 In sequence diagrams, how would you represent an event triggered listener? It is not just a regular method call, so displaying like that would not seem correct. I try to make a sequence diagram of a system including a JMS listener. I could start the lifeline with the send() call of the system to the JMS queue (displaying the system calling send() as a business actor), or I could start the lifeline at the onMessage() call. (displaying JMS Queue as a business actor) Or should I just ignore the

问题 I thought I could differentiate between event and guard . But I came across an event being similar to guard: counter > 4 [pin is high] / switch on ^^^^^^^^^^^ event where I viewed the variable counter changes from some value smaller than 4 to that greater than 4 as event. Does that mean event can also be a condition like guard? 回答1: An event is the thing that triggers the transition. In your case counter > 4 is a change event, meaning " the counter value has changed and its value is now

问题 I thought I could differentiate between event and guard . But I came across an event being similar to guard: counter > 4 [pin is high] / switch on ^^^^^^^^^^^ event where I viewed the variable counter changes from some value smaller than 4 to that greater than 4 as event. Does that mean event can also be a condition like guard? 回答1: An event is the thing that triggers the transition. In your case counter > 4 is a change event, meaning " the counter value has changed and its value is now

问题 I'm just learning about UML and am questioning how to define actors correctly. I know that actors perform role in the system and I don't have a problem determining human actors. My question is how do I decide what non-human, external components are actors on the system. For example, in a home automation system a homeowner and a system installer would be actors. Would it be correct to name a door sensor or a coffee maker an actor? These components receive signals from the main computer module

问题 I'm just learning about UML and am questioning how to define actors correctly. I know that actors perform role in the system and I don't have a problem determining human actors. My question is how do I decide what non-human, external components are actors on the system. For example, in a home automation system a homeowner and a system installer would be actors. Would it be correct to name a door sensor or a coffee maker an actor? These components receive signals from the main computer module

问题 Problem statement : to track an object with a camera and move the camera in azimuth and elevation accordingly. Process : camera acquires images of the object....each frame of camera is processed to find the object(which is supposed to be tracked...) and the information generated in each frame is passed to the mechanical device (gimbal...) to move the camera in pan and tilt... Design : the main Gui is run in a thread and camera and gimbal in 2 other thread...info generated in camera thread is

问题 I am trying to stereotype some elements of my model with the MARTE GQAM stereotypes but I am having troubles in assigning values to some of their properties. For instance I have stereotyped a message between two lifelines as <>. I would like to assign a value to its hostDemand property which shall be a NFP_Duration instance. I can't see how to use the Papyrus editor to create a NFP_Duration instance and assign it to the hostDemand property. Regards 回答1: Under Topcased 5.3.1 and Modelio 3.1.1,

问题 I intend to use boost.msm with the concept of composite containing orthogonal regions . I want to synchronize all orthogonal regions upon exit. In other words: the state following my composite shall be activated if and only if all regions have reached their last state. UML 2.4 "Superstructure" proposes join pseudo states (i.e. chapter 15.3.8). In boost, there is a fork but I cannot find any implementation of its counterpart join. Is there no join pseudo state in boost.msm? How would I apply