Manual de Umbrello UML Modeller. Manual de Umbrello UML Modeller Documents · Generaliserade linjära modeller , individvariationer och Rasch-modeller · Generaliserade linjära modeller. XMI-based model interchange between the UML modelling tools was performed Version () Umbrello UML Modeller Version
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Activity Diagrams are a special form of State Diagrams, that only or mostly contains Activities. Note that not every change in one of the attributes of an object should be represented by a State but only those changes that can significantly affect imbrello workings of the object. Activity Diagrams are similar to procedural Flux Diagrams, with the difference that all Activities are clearly attached to Objects. In Collaboration Diagrams messages sent from one modelelr to another are manuql by arrows, showing the message name, parameters, and the sequence of the message.
Attributes can also be displayed with their visibility:. An Entity is any concept in the real world with an independent existence. An Aggregation describes how the class that takes the role of the whole, is composed has of other classes, which take the role of the parts. Its constituent attributes can be NULL.
Datatypes are primitives which are typically built into a programming language. When the derived entities are not constrained to be disjoint, their set of entities are said to be in overlapping specialization. The new entities, known as umbreklo entities, take over or inherit attributes of the pre-existing entities, which are referred to as base entities.
Sequence Diagrams show the message exchange i. In UMLassociations are represented as lines connecting the classes participating in the relationship, and can also show the role and the multiplicity of each of the participants. A UML State describes the internal state of an object of one particular class. They modekler Nodes which are physical resources, typically a single computer.
Manual UML Modeller Umbrello
Common examples include integers and booleans. They are special in that there is no event that can cause an Object kanual return to its Start state, in the same way as there is no event that can possible take an Object out of its End state once it has reached it.
This means that the same real world entity may be a member of more than one derived entity of the specialization.
They depict the various entities concepts in the information system and the existing relationships and constraints between them. In ER DiagramsEntity Attributes are shown with their name in a different compartment of the Entity to which they belong.
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Visual representation of an entity in an ER Diagram. The time axis is also vertical, increasing downwards, so that messages are sent from one Object to another in the form of arrows with the operation and parameters name. Object is created Object receives message listen A Client requests a connection over the network A Client terminates a request The request is executed and terminated Object receives message stop etc.
Classes can inherit from interfaces through a realisation association and instances can then be made of these diagrams. This is more or less the same information shown by Sequence Diagrams but there the emphasis is put on umbrelli the interactions occur in time while the Collaboration Diagrams put the relationships between the objects and their topology in the foreground. In Sequence Diagrams objects are represented through vertical dashed lines, with the name of the Object on the top.
Use Cases are descriptions of the typical interactions between the users of a system and the system itself. In UMLAggregations are represented by an association that shows a rhomb on the side of the whole. A Class defines the attributes and the methods of a set of objects. Messages can be either synchronous, the normal type of message call where control is passed to the called object until that ukbrello has finished running, or asynchronous where control is passed back modeler to the umbrdllo object.
Unique Keys and Primary Keys uniquely identify a row in a table entity. Actors do not represent the physical people or systems, but their role. There are two special types of States: They exist only inside the whole, and if the whole is destroyed the parts die too.
There are a few umbrelpo in UML that have no real semantic value for the model, but help to clarify parts of the diagram. All objects of this class instances of this class share the same behavior, and have the same set of attributes each object has its own set. In UMLCompositions are represented by a solid rhomb on the side of the whole. Notes are useful to add more detailed information about an object umbreloo a specific situation.
Collaboration Diagrams show the interactions occurring between the objects participating in a specific situation. They have no logical meaning in the model.
Classes can have templates, a value which is used for an unspecified class or type. Manjal may be an object with a physical existence example, Computer, Robot or it may be an object with a conceptual existence eq: Use Case Descriptions are textual narratives of the Use Case.
Objects are instances of classes. The columns in the referenced table must form a primary key or unique key.
A derived Entity is said to be a Category when it represents a collection of objects that is a subset of Union of modelldr distinct entity types.