Data Flow Diagram (DFD) is a methodology of graphical structural analysis and information systems design, which describes the sources external in respect to the system, recipients of data, logical functions, data flows and data stores that are accessed. DFDs allow to identify relationships between various system's components and are effectively used in business analysis and information systems analysis. They are useful for system’s high-level details modeling, to show how the input data are transformed to output results via the sequence of functional transformations. For description of DFD diagrams are uses two notations — Yourdon and Gane-Sarson, which differ in syntax.
Online Store DFD example illustrates the Data Flow Diagram for online store, the interactions between Customers, Visitors, Sellers, depicts User databases and the flows of Website Information. ConceptDraw DIAGRAM enhanced with Data Flow Diagrams solution lets you to draw clear and simple example of DFD for Online Store using special libraries of predesigned DFD symbols.
The purchasing process follows very specific guidelines and includes a purchasing cycle flowchart and receiving process flow chart. Common key elements of purchasing process.
It is important to know how purchasing processes work and how each operation is done.
Gantt Chart is a graphical representation of tasks as segments on a time scale. It helps plan and monitor project development or resource allocation. There are list of tasks, project milesones and stages. The horizontal axis is a time scale, expressed either in absolute or relative time. Gantt chart can be used for planning in virtually any industry. There are major project planning tools using gantt chart for creating project plan.
For instance, using ConceptDraw PROJECT together with ConceptDraw MINDMAP for planning marketing actions is very effective way. It makes ConceptDraw Office best marketing project management software for gantt chart planning marketing message, scheduling stages when to send massive text messages or when use email marketing services in specific projects. There are simple steps on how to use project management software for marketing, sales actions and product support. This is simple all in one toolbox for managers who need best project management software for small business as for planning and brainstorming as for reporting at project execution stage. Using gantt charts together with mindmap visuals and professional presentations charts make it excellent creative project management software. ConceptDraw PROJECT is portfolio project management software it allows manage many projects with multi gantt chart.
UML Collaboration Diagram depicts the interactions between objects or parts in terms of sequenced messages and describes both the static structure and dynamic behavior of a system.
Rapid UML solution provides templates, examples and libraries of stencils for quick and easy drawing all the types of system and software engineering diagrams according to UML 2.4 and 1.2 notations.
Entity-relationship model, also called ER-model, is the main tool of domain modeling on the stage of conceptual design. The modeling of domain data structures is based on the use of graphical tools - Entity-Relationship diagrams (ER-diagrams). The core concepts of ER-Diagram are entity, attribute and relationship. ER-diagram lets visually represent the entities, helps effectively document all properties of designed system and to detail the data storages. To represent the elements at ER-model are commonly used Chen’s notation and Crow’s foot notation, each has its pros and cons. The entity on ER-diagram is represented in the form of rectangle, which specifies its name. An attribute is a property of the entity and relationship is an interaction between the entities. The relationship between two entities is called binary, between more than two entities - ternary.
Specific software, such as ConceptDraw DIAGRAM with Entity-Relationship Diagram (ERD) solution from ConceptDraw Solution Park is helpful for easy creation Entity-Relationship Diagrams.
