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3-Tier Auto-scalable Web Application Architecture

"A web application or web app is any application software that runs in a web browser or is created in a browser-supported programming language (such as the combination of JavaScript, HTML and CSS) and relies on a common web browser to render the application. ... Applications are usually broken into logical chunks called "tiers", where every tier is assigned a role. ...
For more complex applications, a 3-tier solution may fall short, and it may be beneficial to use an n-tiered approach, where the greatest benefit is breaking the business logic, which resides on the application tier, into a more fine-grained model. Another benefit may be adding an integration tier that separates the data tier from the rest of tiers by providing an easy-to-use interface to access the data. For example, the client data would be accessed by calling a "list_clients()" function instead of making an SQL query directly against the client table on the database. This allows the underlying database to be replaced without making any change to the other tiers." [Web application. Wikipedia]
The AWS architecture diagram example "3-Tier Auto-scalable Web Application Architecture" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the AWS Architecture Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park. Read more
AWS architecture diagram
AWS architecture diagram, region, instance, hosted zone, email notification, elastic load balancer, bucket, availability zone, auto scaling group, RDS DB instance standby, Multi-AZ, RDS DB instance, Instance with CloudWatch, ElastiCache, DynamoDB, Cloudfront, Amazon SES,

Flowchart Programming Project. Flowchart Examples

Create you own flow charts of process-driven software applications using the ConceptDraw PRO diagramming and vector drawing software extended with the Cross-Functional Flowcharts solution from the Business Processes area of ConceptDraw Solution Park. The programming project flow chart example shows the logical process of execution. Read more

Workflow Application

ConceptDraw PRO application is perfect for creating workflow diagrams. This application contains specific features and technologies designed to draw diagrams faster, such as RapidDraw and Arrows10. ConceptDraw PRO software extended with the Workflow Diagrams solution gives you a flexible tool to draw any kind of workflow. Read more
This Collaboration diagram contains the collection of participants and their interaction throughout an application handling and invoicing process.
"An invoice, bill or tab is a commercial document issued by a seller to a buyer, relating to a sale transaction and indicating the products, quantities, and agreed prices for products or services the seller has provided the buyer.
Payment terms are usually stated on the invoice. These may specify that the buyer has a maximum number of days in which to pay, and is sometimes offered a discount if paid before the due date. The buyer could have already paid for the products or services listed on the invoice.
In the rental industry, an invoice must include a specific reference to the duration of the time being billed, so in addition to quantity, price and discount the invoicing amount is also based on duration. Generally each line of a rental invoice will refer to the actual hours, days, weeks, months, etc., being billed.
From the point of view of a seller, an invoice is a sales invoice. From the point of view of a buyer, an invoice is a purchase invoice. The document indicates the buyer and seller, but the term invoice indicates money is owed or owing." [Invoice. Wikipedia]
The BPMN 2.0 (Business Process Model and Notation) collaboration diagram example "Application handling and invoicing" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Business Process Diagram solution from the Business Processes area of ConceptDraw Solution Park. Read more
Collaboration BPMN 2.0 diagram
Collaboration BPMN 2.0 diagram, timer, task, none, start, none, end, message, horizontal pool, pool, exclusive gateway, event-based gateway,
"The iPhone ... is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS mobile operating system. ...
The interface is based around the home screen, a graphical list of available applications. iPhone applications normally run one at a time. Starting with the iPhone 4, a primitive version of multitasking came into play. Users could double click the home button to select recently opened. However, the apps never ran in the background. Starting with iOS 7, though, apps can truly multitask, and each open application runs in the background when not in use, although most functionality is still available when making a call or listening to music. The home screen can be accessed at any time by a hardware button below the screen, closing the open application in the process.
By default, the Home screen contains the following icons: Messages (SMS and MMS messaging), Calendar, Photos, Camera, YouTube, Stocks, Maps (Google Maps), Weather, Voice Memos, Notes, Clock, Calculator, Settings, iTunes (store), App Store, (on the iPhone 3GS and iPhone 4) Compass, FaceTime and GameCenter were added in iOS 4.0 and 4.1 respectively. In iOS 5, Reminders and Newsstand were added, as well as the iPod application split into separate Music and Videos applications. iOS 6 added Passbook as well as an updated version of Maps that relies on data provided by TomTom as well as other sources. iOS 6 also added a Clock application onto the iPad's homescreen. However, it also no longer support YouTube. Docked at the base of the screen, four icons for Phone, Mail, Safari (Internet), and Music delineate the iPhone's main purposes." [iPhone. Wikipedia]
The example "iPhone OS (iOS) graphic user interface (GUI) - SMS application" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Graphic User Interface solution from the Software Development area of ConceptDraw Solution Park. Read more
iPhone GUI
iPhone GUI, status bar, screen, navigation bar, controls, modal view, message box, keyboard control, iPhone,
The vector stencils library "AWS Application Services" contains 12 AWS application services icons: Amazon CloudSearch, Amazon Simple Email Service, Amazon AppStream, Amazon Simple Queue Service, Amazon Simple Workflow, Amazon Elastic Transcoder.
Use it to draw Amazon Web Services architecture diagrams.
The AWS icons example "Design elements - AWS Application Services" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the AWS Architecture Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park. Read more
AWS architecture diagram icons
AWS architecture diagram icons, worker, queue, message, email, decider, SDF metadata, Elastic Transcoder, Amazon SWF, Amazon Simple Workflow, Amazon SQS, Amazon Simple Queue Service, Amazon SES, Amazon CloudSearch, Amazon AppStream,
Retract resistor check valve application: pneumatic cylinder, piston driven by Compressed air through 2 Retract resistor check valves.
"A check valve, clack valve, non-return valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.
Heart valves are essentially inlet and outlet check valves for the heart ventricles, since the ventricles act as pumps." [Check valve. Wikipedia]
This hydraulic schematic example was redrawn using ConceptDraw PRO diagramming and vector drawing software from the Wikimedia Commons file: Retract resistor check valve application.png.
[commons.wikimedia.org/wiki/File:Retract_resistor_check_valve_application.png]
The hydraulic engineering drawing example "Retract resistor check valve application" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park. Read more
Hydraulic schematic
Hydraulic schematic, restrictor valve, non-return, valve, double-acting, magnetic cylinder, dot, line, junction,

Best Vector Drawing Application for Mac OS X

ConceptDraw PRO creates drawings, diagrams and charts with great visual appeal in Mac OS X. Read more
This example of business infographics was designed on the base of flowchart in the webpage "Establishing Operations in an Environmental Protection Park" from the website of Taiwan Department of Investment Services, Ministry of Economic Affairs.
"Upon registration of the company, the "Guideline for Operation and Management of Environmental Science and Technology Park Promotion Program" and "Guideline for Execution of Subsidies for Environmental Science and Technology Park Promotion Program" shall be followed for applying for admission to the Park. Any foreigner who wishes to invest in and build a factory in the Park shall apply to the local Preparatory Office of ESTP for admission approval. It will take approximately two months to secure such approval from the application submission date. The investment and construction application procedures prescribed by preparatory Office of ESTP in Southern Taiwan are shown below for reference." [investtaiwan.nat.gov.tw/eng/show.jsp?ID=123&MID=2]
The infographics example "Investment and construction application procedures" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HR Flowcharts solution from the Management area of ConceptDraw Solution Park. Read more
Flowchart infographics
Flowchart infographics, сapital formation, start, right arrow, presentation, person specification, pay, partnership, packaging, merging arrows, leave, vacation, holiday, interview, job interview, event, engineer, profession icon, disciplinary procedures, checklist, career center, bent arrow, arrow fork, architect, profession icon, arc arrow, appraisal, angle arrow, accounting, accept,
The vector stencils library "Application" contains 40 icons of software applications.
Use it to design your computer and telecom illustrations and infographics with ConceptDraw PRO diagramming and vector drawing software.
The vector stencils library "Application" is included in the Computers and Communications solution from the Illustration area of ConceptDraw Solution Park. Read more
Book
Book, book,
Lecture book
Lecture book, lecture book,
E-learning
E-learning, e-learning,
Education
Education, education,
Graduate
Graduate, graduate,
A plus
A plus, a plus,
Student
Student, student,
Position holder
Position holder, position holder,
Achievement
Achievement, achievement, reward,
Diamond
Diamond, diamond,
Present
Present, present,
Balance scale
Balance scale, balance scale,
Law
Law, law,
Atom
Atom, atom,
Formula
Formula, math function, formula,
Chemistry
Chemistry, chemistry,
Research
Research, research, microscope,
Measuring
Measuring, measuring, planning,
Plan
Plan, plan,
Calendar
Calendar, calendar,
Notice pin
Notice pin, notice pin,
Appointment
Appointment, appointment,
Tea cup
Tea cup, tea cup,
Journal
Journal, journal,
Archive
Archive, archive,
Calculator
Calculator, calculator,
Text format
Text format, text format,
Graphic editor
Graphic editor, graphic editor,
Vector graphics
Vector graphics, vector graphics,
Digital art board
Digital art board, digital art board,
Creative
Creative, creative,
Design
Design, design,
Adaptive
Adaptive, adaptive, web design,
ECG
ECG, ecg,
Forecast book
Forecast book, forecast book,
Presentation
Presentation, presentation,
Shopping basket
Shopping basket, shopping basket,
Platform truck
Platform truck, platform truck,
Printer
Printer, printer,
Air conditioner
Air conditioner, air conditioner,
This example was designed on the base of the "Diagram of New Application Workflow" from the United States Patent and Trademark Office (USPTO) website. [uspto.gov/images/legalefs1.jpg]
"A nonprovisional application for a patent is made to the Director of the United States Patent and Trademark Office and includes:
(1) A written document which comprises a specification (description and claims);
(2) Drawings (when necessary);
(3) An oath or declaration; and
(4) Filing, search, and examination fees." [uspto.gov/patents-getting-started/general-information-concerning-patents#heading-12]
The diagram example "New application workflow" was created using ConceptDraw PRO software extended with the Business Process Workflow Diagrams solution from the Business Processes area of ConceptDraw Solution Park. Read more
Business process flow diagram
Business process flow diagram, web, globe, receive, problem, print, office printer, person torso, on-page reference, laptop computer, notebook, information services, go back arrow, elbow arrow, document, data store, arrow right dotted, arrow right, arrow left, alert, siren, access, key,
"In computer networking, cloud computing is computing that involves a large number of computers connected through a communication network such as the Internet, similar to utility computing. ...
Network-based services, which appear to be provided by real server hardware, and are in fact served up by virtual hardware, simulated by software running on one or more real machines are often called cloud computing. Such virtual servers do not physically exist and can therefore be moved around and scaled up or down on the fly without affecting the end user, somewhat like a cloud becoming larger or smaller without being a physical object. ...
Typically, the seller has actual energy-consuming servers which host products and services from a remote location, so end-users don't have to; they can simply log on to the network without installing anything. The major models of cloud computing service are known as software as a service, platform as a service, and infrastructure as a service. These cloud services may be offered in a public, private or hybrid network. Google, Amazon,leadsquared.com, Oracle Cloud, Salesforce, Zoho, Access2MyPC, and Microsoft Azure are some well-known cloud vendors." [Cloud computing. Wikipedia]
The AWS architecture diagram example "2-Tier Auto-scalable Web Application Architecture in 1 AZ" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the AWS Architecture Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park. Read more
AWS architecture diagram
AWS architecture diagram, volume, snapshot, security group, download distribution, bucket, availability zone, auto scaling group, RDS DB instance, Instance, Amazon Route 53,
The vector stencils library "AWS Application Services" contains 12 AWS application services icons: Amazon CloudSearch, SDF metadata, Amazon SES, Email, Amazon AppStream, Amazon SQS, Queue, Message, Amazon SWF, Decider, Worker, Elastic Transcoder. Use it to draw Amazon Web Services architecture diagrams of your cloud service. The symbols example "AWS Application Services - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the AWS Architecture Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park. Read more
Amazon CloudSearch
Amazon CloudSearch, Amazon CloudSearch,
SDF metadata
SDF metadata, SDF metadata,
Amazon SES
Amazon SES, Amazon SES,
Email
Email, email,
Amazon AppStream
Amazon AppStream, Amazon AppStream,
Amazon SQS
Amazon SQS, Amazon SQS, Amazon Simple Queue Service,
Queue
Queue, queue,
Message
Message, message,
Amazon SWF
Amazon SWF, Amazon SWF, Amazon Simple Workflow,
Decider
Decider, decider,
Worker
Worker, worker,
Elastic Transcoder
Elastic Transcoder, Elastic Transcoder,

Amazon Web Services Diagrams diagramming tool for architecture

Amazon Web Services (AWS) offers the reliable and relatively inexpensive cloud computing services. This is the main reason why many large companies prefer to use the Amazon Cloud to storage and operate the data. ConceptDraw PRO diagramming software enhanced with AWS Architecture Diagrams solution provides the powerful AWS diagramming tools to draw the Amazon architecture diagrams and Amazon Web Services planning diagrams, to develop the Architect infrastructure based on AWS in a few minutes. The AWS Architecture Diagrams solution offers variety of built-in samples and templates for several Amazon Web Services products and resources, a wide range of predesigned and recognizable vector graphic icons used for simple designing the Architecture diagrams. The diagrams created in ConceptDraw PRO are professional-looking, helpful when designing and implementing the AWS infrastructure based systems, useful to communicate design, deployment and topology, and apposite for using in presentations, whitepapers, datasheets, posters, and other technical materials you like. Read more
"An application server can be either a software framework that provides a generalized approach to creating an application-server implementation, without regard to what the application functions are, or the server portion of a specific implementation instance. In either case, the server's function is dedicated to the efficient execution of procedures (programs, routines, scripts) for supporting its applied applications." [Application server. Wikipedia]
"Hardware requirement for servers vary, depending on the server application. Absolute CPU speed is not quite as critical to a server as it is to a desktop machine. Servers' duties to provide service to many users over a network lead to different requirements such as fast network connections and high I/O throughout. Since servers are usually accessed over a network, they may run in headless mode without a monitor or input device. Processes that are not needed for the server's function are not used. Many servers do not have a graphical user interface (GUI) as it is unnecessary and consumes resources that could be allocated elsewhere. Similarly, audio and USB interfaces may be omitted. ...
As servers need a stable power supply, good Internet access, increased security and are also noisy, it is usual to store them in dedicated server centers or special rooms. This requires reducing the power consumption, as the extra energy used generates more heat thus causing the temperature in the room to exceed acceptable limits; hence normally, server rooms are equipped with air conditioning devices. Server casings are usually flat and wide (typically measured in "rack units"), adapted to store many devices next to each other in a server rack. Unlike ordinary computers, servers usually can be configured, powered up and down or rebooted remotely, using out-of-band management, typically based on IPMI." [Server (computing). Wikipedia]
A rack diagram is useful for designing and documenting of network rack server equipment (19-inch or 23-inch rack, rack cabinet, rack unit, network switch, router, KVM switch, server) of data centers, ISP facilities and corporate server rooms.
This application server rack diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rack Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park. Read more
Rack diagram
Rack diagram, power strip, patch panel, managed UPS, RAID array, LCD monitor keyboard, KVM, KVM switch, Fibre patch panel, type C, 2U server, 19 inch, rack, rails,  ethernet, switch, hub,