Taxi Service Data Flow Diagram DFD Example

Taxi Service Data Flow Diagram<br>DFD Example *

This sample shows the Data Flow Diagram of the Taxi Service and interactions between the Clients, Operators and Divers, as well as Orders and Reports databases.

Last resort hotel book room process - DFD

This example was redesigned from the Wikipedia file: LastResortHotel BookRoom Process.png. [en.wikipedia.org/ wiki/ File:LastResortHotel_ BookRoom_ Process.png]
This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 License. [creativecommons.org/ licenses/ by-sa/ 3.0/ ]
"Event partitioning is an easy-to-apply systems analysis technique that helps the analyst organize requirements for large systems into a collection of smaller, simpler, minimally-connected, easier-to-understand ‘mini systems’ / use cases. ...
Defining requirements.
Single process in a fictitious hotel using data flow diagram notation.
Single use case in a fictitious hotel using use case diagram notation.
This approach helps the analyst to decompose the system into ‘mentally bite-sized’ mini-systems using events that require a planned response. The level of detail of each response is at the level of ‘primary use cases’. Each planned response may be modelled using DFD notation or as a single use case using use case diagram notation.
The basic flow within a process or use case can usually be described in a relatively small number of steps, often fewer than twenty or thirty, possibly using something like ‘structured English’. Ideally, all of the steps would be visible all at once (often a page or less). The intention is to reduce one of the risks associated with short-term memory, namely, forgetting what is not immediately visible (‘out of sight, out of mind’). ...
Single process in a fictitious hotel using data flow diagram notation." [Event partitioning. Wikipedia]
The DFD example "Last resort hotel book room process" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Data Flow Diagrams solution from the Software Development area of ConceptDraw Solution Park.

DFD

DFD, process, external interactor, data store,

Used Solutions

Software Development >

Data Flow Diagrams

Data Flow Diagram Model

Data Flow Diagram (DFD) is a technique of graphical structural analysis, describing the sources external to the system, recipients of data, also logical functions, data flows and data stores that are accessed. The DFD's goal is to show how each process converts its inputs into the outputs and to identify relationships between these processes, at this make the system's description clear and understandable at every level of detail. Historically happened that for describing Data Flow Diagrams are used two notations - Yourdon and Gane-Sarson that differ each from other by graphical representation of symbols. The DFD model, like most other structural models is a hierarchical model. Each process can be subjected to decomposition on the structural components, the relationships between which in the same notation can be shown on a separate diagram. Typically, several DFD models are built when modeling the system. ConceptDraw DIAGRAM software enhanced with Data Flow Diagrams solution ideally suits for creation DFD models and professional drawing Data Flow Diagrams.

Functional Flow Block Diagram

You need to draw a Functional Flow Block Diagram? You are an artist? Now it doesn't matter. With Block Diagrams solution from the "Diagrams" area for ConceptDraw Solution Park you don't need more to be an artist to design the Functional Flow Block Diagram of any complexity.

Data Flow Diagrams (DFD)

Data Flow Diagrams solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils for drawing the data flow diagrams (DFD).

Design Data Flow. DFD Library

Data flow diagram or DFD is a type of diagrams used for graphical representation the "flow" of data through an information system, for effective modeling its process aspects and for visualization the data processing. They are one of the best tools for clearly making an overview of the system that will be developed, for depiction in details what kinds of information will be inputted to the system and outputted from it, where they will be stored, and other details. ConceptDraw DIAGRAM software with Data Flow Diagrams solution from Software Development area of ConceptDraw Solution Park is powerful in a field of designing the DFDs. Three libraries containing 49 vector DFD shapes and symbols are offered by Data Flow Diagrams (DFD) solution. Use them to design data flow diagrams, information flow diagrams, data flowcharts, data process diagrams, structured analysis diagrams, to create the data-oriented models or process-oriented models, and so on. Pay also attention for the included collection of DFD samples, examples and built-in templates at ConceptDraw STORE.

Diagramming Software for Business Process

Create professional business process diagrams using ConceptDraw Expanded Objects library with 14 objects from BPMN.

Software and Database Design with ConceptDraw DIAGRAM

Unified Modeling Language (abbr. UML) is a modeling language used by software developers and software engineers for developing diagrams, expressive modeling, visualization, construction, specification, and documentation an information about software-intensive systems. There are used many types of UML diagrams, joined in main groups, each of them has its own functional abilities and applications: Behaviour diagrams illustrate the functionality of software systems, Structuring diagrams depict a structure of objects at the systems, Interaction diagrams show the flow of control and data among the things in a modeling system. UML has a lot of practical applications in varied areas, among them software development, hardware design, banking and financial services, telecommunication, science, research, enterprise information system, distributed Web-based services, user interfaces for web applications, medical electronics, patient healthcare systems, etc. ConceptDraw DIAGRAM extended with Rapid UML solution is a perfect tool for UML diagramming.

Management - Design Elements

When you need to draw a professional management drawing, these management design elements, samples, templates and libraries with vector clip art for drawing the Marketing Illustrations. Conceptdraw symbols and signs you can use in your design for Strategic Management, Graphic Design, Planning implementation and more. You can create and view impact analysis drawings from specific design elements to examine the tasks.

Planogram Software and Retail Plan Software

Planogram Software <br>and Retail Plan Software *

The ConceptDraw DIAGRAM Planogram Software and Retail Plan Software offers powerful tools of Enterprise Architecture Diagrams Solution for visualization the market analysis and easy making successful Retail Plans and Planograms with useful detailed recommendations about placing products and optimization the shelf space.

DFD Library — Design elements

Data Flow Diagrams (DFD) solution from the Software Development area of ConceptDraw Solution Park provides plenty of predesigned templates, samples and DFD vector design elements proposed by three DFD libraries. These DFD library objects are designed to help you effectively model the data flows and functional requirements for the business processes or systems, to design the Process-oriented models or Data-oriented models, Data flowcharts and Data process diagrams, Structured analysis diagrams and Information flow diagrams. There are two different notations used to draw the Data Flow Diagrams (Yourdon & Coad and Gane & Sarson). These notations define the different visual representations for the processes, data stores, data flows, and external entities. ConceptDraw DIAGRAM software provides you with possibility of designing professional-looking Data Flow Diagrams, DFD Models, Data Flow Process Diagrams using any of these notations. Simply drag the predesigned DFD flowchart symbols from the appropriate library and connect by arrows depicting the data flow from one step to another.

Program Structure Diagram

Program Structure Diagram - The Software Development solution from ConceptDraw Solution Park provides the stensils libraries of language level shapes and memory objects for drawing the structural diagrams of programs and memory objects using the ConceptDraw DIAGRAM diagramming and vector drawing software.

UML Diagram Tool

The UML diagrams are widely used and creating them is useful to apply the automated UML diagram tool. ConceptDraw DIAGRAM diagramming and vector drawing software extended with Rapid UML Solution from the Software Development Area is a powerful UML diagram tool.

Enterprise Architecture Diagrams

Enterprise Architecture Diagrams solution extends ConceptDraw DIAGRAM software with templates, samples and library of vector stencils for drawing the diagrams of enterprise architecture models.

Design elements - Business process BPMN 1.2 (Rapid Draw)

The vector stencils library "Business process BPMN 1.2 (Rapid Draw)" contains 12 symbols of objects, roles swimlanes, and task icons for creating the business process diagrams using the ConceptDraw PRO diagramming and vector drawing software.
"BPMN models consist of simple diagrams constructed from a limited set of graphical elements. For both business users and developers, they simplify understanding business activities' flow and process. BPMN's four basic element categories are:
(1) Flow objects.
Events, activities, gateways.
(2) Connecting objects.
Sequence flow, message flow, association
(3) Swim lanes.
Pool, lane.
(4) Artifacts.
Data object, group, annotation.
These four categories enable creation of simple business process diagrams (BPDs). BPDs also permit making new types of flow object or artifact, to make the diagram more understandable. ...
Task.
A task represents a single unit of work that is not or cannot be broken down to a further level of business process detail without diagramming the steps in a procedure (which is not the purpose of BPMN)." [Business Process Model and Notation. Wikipedia]
The shapes example "Design elements - Business process BPMN 1.2 (Rapid Draw)" is included in the Business Process Diagram solution from the Business Processes area of ConceptDraw Solution Park.

BPMN 1.2 symbols