Information system means by which people and organizations utilize technologies, collect, store use and distribute information. Good information system is used to provide important information for decision making. The information technology may be used for the processing, storing or distribution of data. These technologies collectively include information technology and data. It is an organized combination of people, hardware, software, communications networks, and data resources that stores and retrieves, transform and disseminate information in an organization. Very main functions of information systems is systems analysis and design, that is to say, analyzing a customer’s business condition (or trouble), with deference towards information processing, and designing and implementing an suitable–generally computerized–solution to the difficulty. Information systems professionals who focus in this part are known as systems analysts. The procedure begins with a complete determination of the client’s information needs and business processes. The result normally involves various programming, in addition to the Continue reading
Information Systems Basics
What is Enterprise Architecture (EA)?
The Evolution of Enterprise Architecture (EA) Enterprise Architecture evolution began as an idea in 1980 and was embodied in John Zachman’s early EA framework. Thus, informing the reference to John Zachman, as the father of EA. The evolution of Enterprise architecture was to address the increasing complexity of IT systems and difficulty of delivering business value using those systems. Enterprise architecture is characterized by a framework that supports the alignment of business and IT strategy. It was first defined in 1992 by Zachman and Sowa, resulting in its reference as the Zachman framework. It was then referred to as Information System Architecture but later changed in reference, to enterprise architecture in 1996 when Clinger-Cohen Act of the U.S. government directed all federal agencies to implement a holistic approach to incorporate IT to their business goals. Interest in adopting Enterprise architecture has increased as a result, as both government and private Continue reading
Different Information Systems in Business
Information systems refer to the way in which information is gathered, customized, analyzed, shared and reported. Each information systems are invented to support these requirements of business to enable managers to take sound decisions to achieve business objectives and goals. They often overlaps each other with respect to functions they provide like gathering, comparing, analyzing, integrating different software applications and reporting. Each kind of information system supports this by varying degree of effectiveness. They all require costs, time, training to use hardware/software and changes to be adopted, to implement the system. 1. Executive Information Systems (EIS) Executive information system supports the top level management in taking strategic business decisions by providing information to executives. Executives can directly extract information from database of the EIS without any need to being reported. It gathers both internal and external information to support executives in achieving strategic objectives and goals. The features of Continue reading
An Overview of Computer Operating Systems (OS)
Many people use computers without knowing how it works. The main software when using the computer is the operating system. The operating system defines all the experience when using a computer; it manages the hardware and software resources of the computer system, provides a way for applications to deal with the hardware without having to know all the details of the hardware, and it is the software that makes all the programs we use work, and it organizes and controls the hardware on our computers. The operating system is the first software we see when we turn on the computer, and the last software we see when the computer is turned off. It’s important to know and understand that not all computers have operating systems. For example the computer that controls the microwave oven in your kitchen doesn’t need an operating system, it has only simple tasks to perform, very Continue reading
11 Types of Information Systems Used in Business
Conceptually, information systems in the real world can be classified in several different ways. For example, several types of information systems can be classified conceptually as either operations or management information systems. 1. Operations Support Systems Information systems have always been needed to process data generated by, and used in, business operations. Such operations support systems produce a variety of information products for internal and external use. However, they do not emphasize producing the specific information products that can best be sued by managers. Further processing by management information systems is usually required. The role of a business firm’s operations support systems is to efficiently process business transactions, control industrial processes, support enterprise communications and collaboration, and update corporate databases. 1. 1. Transaction Processing Systems Operations support systems include the major category of transaction processing systems (TPS). Transaction processing systems record and process data resulting from business transactions. Typically examples Continue reading
Enterprise Resource Planning (ERP) Implementation
Introduction Enterprise Resource Planning (ERP) is the process of integrating all the business functions and processes in an organization to achieve numerous benefits. First, a single point of data entry helps to reduce data redundancy while saving employee’s time in entering data, thereby reducing labor and overhead costs. Second, the centralization of information, decision-making, and control leads to increases in efficiencies of operations and productivity, as well as coordination between departments, divisions, regions, and even countries. This is especially true for multinational corporations (MNC), in which global integration could result in better communications and coordination around the world. The global sourcing and distribution of parts and services could also provide appropriate benchmarks for operations around the world. Third, the sharing of a centralized database provides business managers with accurate and up-to-date information to make well informed business decisions. Further, it reduces data redundancy while improving data integrity at the same time. Fourth, functional integration Continue reading