UML Use Case Diagram Example. Social Networking Sites Project
In the early stages of a development project, use case diagrams are used to describe real-world activities and motivations.
A use case diagram (use case: In a use case diagram, a representation of a set of events that occurs when an actor uses a system to complete a process. Normally, a use case is a relatively large process, not an individual step or transaction.) is a dynamic or behavior diagram in UML.
Use case diagrams are valuable for visualizing the functional requirements of a system that will translate into design choices and development priorities. You can refine the diagrams in later stages to reflect user interface and design details.
They also help identify any internal or external factors that may influence the system and should be taken into consideration.
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.
Example 1. UML Diagrams solution
This sample shows the Facebook Socio-health system and is used at the projection and creating of the social networking sites.
Example 2. UML Diagrams Social Networking Sites Project
Using the libraries of the Rapid UML Solution for ConceptDraw DIAGRAM you can create your own visual vector UML diagrams quick and easy.
TEN RELATED HOW TO's:
ConceptDraw - feature-rich flowchart software. This software includes flowchart diagram examples set. Libraries contain vector stencils that allow users to use RapidDraw technology. Users can start draw their own flowchart diagrams from existing examples by clicking on direction arrows.
Picture: Example of Flowchart Diagram
How to draw pictorial chart quick, easy and effective? ConceptDraw DIAGRAM offers the unique Pictorial Infographics Solution that will help you!
Pictorial Infographics solution contains large number of libraries with variety of predesigned vector pictograms that allows you design infographics in minutes. There are available 10 libraries with 197 vector pictograms.
Picture: How to Draw Pictorial Chart. How to Use Infograms
Event-Driven Process chain Diagrams for improvement throughout an organisation. Best software for Process Flow Diagram. The Event-driven Process Chain (EPC) Diagrams allows managers to plan processes and resources.
Picture: Business process Flow Chart — Event-Driven Process chain (EPC) diagrams
Flowcharts can be used in designing and documenting both simple and complex processes or programs and, similar to the other types of diagrams, they can help visualize what happens and so help understand some definite process, and, as a result, find flaws, bottlenecks and other features within it.
Picture: Flowchart Programming Project. Flowchart Examples
Charting Software allows you to create diagrams, charts, graphs, flowcharts, and other business graphics. ConceptDraw DIAGRAM include simple shape drawing tools, examples, templates, and symbol libraries.
Picture: Create Graphs and Charts
When designing a network, it is important to take into account the hierarchy of network devices. When you have a root device you should consider a tree network topology that might have any number of lower levels as you might need. This technology is based on star and bus network topologies.
This is a schematic representation of a Tree computer network topology. A tree topology means that some star networks are linked together. A star network is a topology of the local network where a central workstation is connected with each end-user computer or peripherals. A tree structure means that, the central nodes of these star networks are linked to a main cable (the Bus topology). So, a Tree network topology is a few Star networks connected into a Bus topology. This scheme can be applied to draw the particular physical or logical network diagrams using the ConceptDraw Computer and Networks solution.
Picture: Tree Network Topology Diagram
Recruitment refers to the overall process of attracting, selecting and appointing suitable candidates for jobs within an organization.
The recruitment process often requires design and use of various HR flowcharts, diagrams, attractive illustrations. Never before their creation wasn’t so easy as now with HR Flowcharts Solution from the Management Area of ConceptDraw Solution Park.
When talking about engineering, one should define all the terms used, so anybody could understand the topic. Typical network glossary contains definitions of numerous network appliances, types of networks and cable systems. The understanding of basic is crucial for server management, network administration and investigating problems.
The network glossary defines terms related to networking and communications. The most of glossary items has their visual representation in ConceptDraw DIAGRAM libraries of the Computer Network Diagrams solution. This illustration presents a local area network (LAN) diagram. It designed to show the way the interaction of network devices in a local network. The diagram uses a library containing symbols of network equipment, connections and the end-point devices such as network printer, hubs, server, modem and finally computers (PC, mac, laptop). This diagram depicts a physical LAN topology.
Picture: Network Glossary Definition
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre. Radio waves with frequencies above the UHF band fall into the SHF (super-high frequency) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, and numerous other applications.
26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Picture: Electrical Symbols — VHF UHF SHF