Summary System Analysis and Design Chapter 7

Chapter 7

Activities of “Design System Components”




Anatomy of a Modern System –
Computing Devices
 Server – manages shared resources and enables users and other computers access to these
resources
 Personal computing devices or clients
 Desktops, laptops, tablets, smartphones


Simplified architecture for application (Amazon.com)




 Server farm – very large databases and very high use


Anatomy - Networks
 Computer network – hardware, software, transmission media
 Internet backbone –
 High-capacity, high-speed computer network that carries large amounts Internet traffic across
countries, continents
 Owned by governments and telecom companies
 Local area network (LAN) –

,  Small network typically spanning a single home, small office, or one floor of a building
 World Wide Web (WWW)
 All the interconnected resources accessed through the Internet
 Uniform Resource Locator (URL)
 The identifier for the Web to locate a particular resource (contains below picture)
 Hyperlink –
 The URL of one Web resource is embedded within another Web resource




Anatomy - Software
 Application software – software (programs) that per forms user- or business-specific tasks
 Typically constructed as an app or Web-based application
 App
 Application software that is installed on the storage device of a computer or cell phone
 System Software –
 Software that works behind the scenes to support application software and control or interact with
hardware or software resources




 Web-Based Applications
 Application software that uses a Web browser as the user interface
 Accessed through a URL
 Uses a Web server and server-side software components
 Uses standard IP protocols
 Embedded Software
 Software apps or functions embedded within another app, such as within a browser or O/S
 Toolbars, Plug-ins, Widgets