SLIIT Life

 The main elements of client-side application components of distributed systems •Distributed systems use client-side elements for users to interact with •These client-side elements include         •Views – what users see (mainly GUIs)         •Controllers – contain event handlers for the Views         •Client-model – Business logic and data The Views development technologies for the browser-based client-components of web-based applications •Content – HTML • Formatting – CSS  The Controller development technologies for the browser-based client-components of web-based applications ( HTML ,  CSS ,  JavaScript ) and server-side technologies such as  PHP ,  ASP ,.Net, C#,  Python , etc.  as well as a  database  to store and retrieve information from  ( MySQL ,  Oracle ,  SQL  Server). Different categ...

Data Persistence 1. Role of data in information systems indicating the need for data persistence What Is an Information System? An information system (IS) is a set of components that work together to manage data processing and storage. Its role is to support the key aspects of running an organization, such as communication, record-keeping, decision making, data analysis and more. Companies use this information to improve their business operations, make strategic decisions and gain a competitive edge. All information systems require the input of data in order to perform organizational activities. Data, as described by Stair and Reynolds (2006), is made up of raw facts such as employee information, wages, and hours worked, barcode numbers, tracking numbers or sale numbers. The scope of data collected depends on what information needs to be extrapolated for maximum efficiency. Data storage is the collective methods and technologies that capture and retain digital information o...