UML Use Case Diagram Example. Registration System
The use case diagram (behavior scenarios, precedents) is the initial conceptual representation of the system during its design and development. This diagram consists of actors, use cases and relationships between them. When constructing a diagram, common notation elements can also be used: notes and extension mechanisms.
The essence of this diagram is as follows: the designed system is represented as a set of actors interacting with the system using the so-called “use cases”. In this case, an actor (acting person, actant, artist) is any object, subject, or system that interacts with a simulated system from the outside. In turn, the “use case” is a specification of the services (functions) that the system provides to the actor. In other words, each “use case” defines a certain set of actions performed by the system when interacting with an actor. At the same time, the model does not reflect in any way how this set of actions will be implemented.
In the structural approach, the analogue of the use case diagram is IDEF0 and DFD diagrams, use-work options (IDEF0) and processes (DFD), and actors — external entities (DFD).
This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park.
This sample shows the types of user’s interactions with the system and is used at the registration and working with the database system.
Example 1. Registration System. UML Use Case Diagram
Using the libraries of the Rapid UML Solution for ConceptDraw DIAGRAM you can create your own visual vector UML diagrams quick and easy.
UML Resource:
NINE RELATED HOW TO's:
Business Process Flow Diagram is one of the main tool of business analysis and business process re-engineering that lets identify and easy understand process flows within organization. Sign up and start today.
Picture: Business Process Flow Diagram
Related Solution:
When describing any computer network, we imagine a set of devices and nodes, arranged in some way. Talking about network structures, we should distinguish physical and logical network topologies, as physical topology is about devices location and logical topology illustrates data flow. In the same time, they do not have to match, and some devices, such as repeaters, may have a physical star layout, but a bus logical topology.
There are two main types of computer network topologies: Physical topology that show the physical organization of a network - equipment and types of connections. Star network topology involves a set of devices that is connected to a single hub (router). Ring network topology means that, devices connected according this topology have two connections, connecting with nearby devices to make a loop. Bus network topology is the topology presented at the current diagram. It is similar to a ring topology. The difference is that data moves up and down a linear connection, copying itself where network equipment works as bus-stations along the way. This network topology can be used for small network, or when adding an extra device into a network.
Picture: Network Topologies
Related Solution:
ConceptDraw DIAGRAM software is the best Mac diagramming software for drawing any type of diagrams. Its rich set of samples and templates, and specific features to draw with great visual appeal on Mac OS X.
Picture: Mac Diagramming Software
ConceptDraw DIAGRAM is the best network diagram software. To design the Cisco Network Diagrams and visualize the computer networks topology use ConceptDraw DIAGRAM diagramming and vector drawing software extended with Cisco Network Diagrams solution for ConceptDraw DIAGRAM Solution Park.
Picture: Cisco Network Diagram Software
Related Solution:
There are many tools that are used within data modeling processes but to make the correct model it is always better to draw it graphically so it becomes more obvious whether it is good enough to use or not. Having the ConceptDraw DIAGRAM diagramming and drawing software may lead to creating the great looking ORM drawings, such as ORM diagrams, especially if you have the Object-Role Modeling (ORM) solution downloaded from the ConceptDraw STORE application — another product of CS Odessa that can be used by all the ConceptDraw DIAGRAM users.
Picture: Data Modeling Tools
Related Solution:
Developing a software project supposes architecture first. To make it proper, you can use data flow diagram model in your current project.
The data flow diagram represents the Model of small traditional production enterprise that is made using Yourdon and Coad notation. It shows how the data is transfered through a process. According to the notation of Yourdon and Coad a process is represented by circles and data stores are drawn using parallel lines. This DFD was created using the ConceptDraw Data Flow Diagrams solution. Using this solution one can visualize data flow accordingly to the rules of two basic notations used for data flow modeling.
Picture: Data Flow Diagram Model
Related Solution:
The PERT Chart is constructed as part of the process in creating a schedule of corrective actions. The PERT Chart shows the logical connections and consequence of tasks to be performed. It displays the time period for problem solving and the implementation of all activities through the critical path.
ConceptDraw Office suite is a software for corrective actions planning.
Picture: CORRECTIVE ACTIONS PLANNING. PERT Chart
In case some ORM drawing has to be created, such as an ORM diagram, it can become possible once the ConceptDraw DIAGRAM diagramming and drawing software is downloaded from this site being used with another product of CSO — the ConceptDraw STORE. Having the last-mentioned application, you can choose to install the Object-Role Modeling (ORM) solution in order to make any needed ORM diagram by using the pre-made templates of such drawings as well as the vector stencil libraries from the mentioned solution.
Picture: ORM
Related Solution:
When we think about programming, we usually imagine sleepless nights spent on writing kilobytes of code. However, from another point of view, Software development with ConceptDraw DIAGRAM makes a programmer's life endlessly easier. This tool is unique to fulfill all your needs in short period of time.
Over the recent years object-oriented methodology has become more and more widespread. Thanks to this methodology developers manage to deal with growing complexity of applications. More and more programs are written in such programming languages as C++, Java, Visual Basic and Object Pascal. However, the complexity of the designed systems imposes extended requirements as to design of graphic documentation. ConceptDraw possesses powerful tools for designing of technical documentation for object-oriented projects. The libraries included in the package allow to easily draw class hierarchies, object hierarchies and diagrams of data flows with the use of the most popular notations, including UML and Booch notations. And the library for projecting COM-interfaces will spare developers of ActiveX-servers a headache.
Picture: Software development with ConceptDraw DIAGRAM