sequence-diagram

问题 I was wondering, how can one represent "if cond1 else if cond2" statement on a sequence diagram? if (condition1) { // Do something } else if(condition2) { // Do something else if } Im not sure if is it with two independent "Opt" clause If possible create an image representation of a solution. 回答1: In the sequence diagram, you can use a combined fragment with an alt operator. This allows you to show alternative behaviors: Graphically, the alternatives are in tiled regions separated by dashed

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 There can be 2 operations that retailer can make when he is updating inventory i.e. update existing record or add a new one. so after making those two operations the controller will invoke updateView() Method to change the main page view. All together i have used it thrice so is it ok to call a same method? I have added the image for the reference. 回答1: No. That's not ok. First: The Retailer will not directly call methods of the UIController. He will always use the View (Main Page). These

问题 I've this PHP controller class (belongs to Symfony2 bundle): class ReptoolController extends PageController { // ... private function _get($request, $action, $case) { $app_id = $this->getRequested('app_id'); if( ( $repappConfig = $this->getDoctrine()->getRepository('PDOneBundle:RepappConfig')->findOneBy(array("app_id"=>$app_id))) ) { $current_timestamp = new \DateTime(date('Y-m-d')); if($repappConfig->getExpireDate()) $expire_date = $repappConfig->getExpireDate()->getTimestamp(); else { $temp

问题 Is it possible to describe an if-else structure in a system sequence diagram? If yes, how is this done? 回答1: Here's more info about combined fragments from the VS 2010 sequence diagram documentation: UML Sequence Diagrams: Reference UML Sequence Diagrams: Guidelines Describing Control Flow with Fragments in UML Sequence Diagrams 回答2: Yes, this can be done in UML 2 using the 'Alternative' combined fragment type, although personally I find them relatively difficult to read. There is a good

问题 I have a Java code which I need to generate the class diagrams and sequence diagrams. I am using netbeans, but the code is 100% pure hand coded. How can I generate the class diagrams and sequence diagrams for existing code using netbeans? The code is separated into packages, so I need to generate class diagrams package wise. Which means, for an example, diagram 1 for package 1, diagram 2 for package 2 etc. Finally I need to take the generated GUI as an image. Please help! 回答1: IMO, generating

问题 for (Item i : collection) { i.foo(); } In some abstract sequence diagrams you have a loop combined fragment with a condition along the lines of e.g. [for each item] . On a sequence diagram featuring Java implementation; what would you use as a loop guard? If all lifelines must represent an object instance, how would you show that i: Item is not a single instance, but on each iteration a different object from the collection ? 回答1: You don't show each single bit in a SD but just an overview: it

问题 I have a child class which wants to add more functionality to a base class function, how can I represent that it also does the base class function not just the newly added functionality? 回答1: Interesting question. I tried that with Enterprise Architect. It did let me select the parent's operation but the display in the diagram did not change. It seems like you need to use notes for that: As you can see Class2 inherits from Class1 . The SD shows a call to Class2 's operation a() . The call to

问题 What do the vertical rectangles signify in a UML sequence diagram? For example I want to know the meaning of the rectangle pointed to by the green arrow. Do the height of these rectangles mean anything? 回答1: The vertical rectangles denote execution specification . Execution specification is a part of object's interaction which represents period of object's lifetime when it is either doing some activity or simply waiting for the reply from other object. By some activity I mean sending messages

问题 I have created sample android project. Now i have to create sequence diagram for that. Is there any way to automatically generate sequence diagram for android project from android studio. 回答1: Finally I got the solution. I have installed a plugin, previously called SequencePluginReload from Android Studio, now called SequenceDiagram It is very easy to use and works like charm. 回答2: I have downloaded SequenceDiagram suggested by @venkatesh in above answer, but didn't understand how to use it.