SLIIT Life

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...

 RESTful Web services 1. Message oriented communication Vs Resource oriented communication Message Oriented Communication describes that involves the passing of data between applications using a communication channel that carries self-contained units of information (messages). In this communication environment, messages are generally sent and received asynchronously. Also senders and receivers are never aware of each other. Instead, they send and receive messages to and from the messaging system. It is the responsibility of the messaging system (MOM) to get the messages to their intended destinations. A resource-oriented communication or architecture (ROA) represents blueprint of how supporting the inter networking of resources. A resource, in this context, is any entity that can be identified and assigned a uniform resource identifier (URI). Identifies four essential concepts underlying the resource-oriented architecture: Resources Their names (URIs) T...