MANAGING INFORMATION

Managing Information

Abstract

Systems analysis and design has been as critical building block in Information Systems. The process to develop computer-based information systems has changed significantly within the last ten years. Research was conducted to determine how organizations currently perform systems analysis and design. Responding organizations provided evaluations of their current approaches and tools. The results should provide insights for information systems practitioners and have implications. This paper introduces the reader of this special issue on systems analysis and design and its issues, and also discusses the Data Flow Diagram.

Table of Contents

Abstract2

Information Technology (IT)4

Management Information System (MIS)7

Structured Systems Analysis and Design Method (SSADM)9

Structured Systems Analysis and Design Method Techniques9

Steps used in SSADM10

SSADM in Context with the Business Situation11

Structured Methodologies12

Data Flow Diagrams (DFD)12

Data Dictionary (DD)14

Specification of a Process14

Entity-Relationship14

State Transition Diagram14

Disadvantages of SSADM14

Problems in SSADM15

D&D Enterprises17

Data Flow Diagram of Debenhams17

Data Flow Diagram of Next20

Conclusion21

References23

Appendix26

Managing Information

Information Technology (IT)

It is necessary to provide that information technology (IT) is defined as "the tools and methods used to collect, retain, handle or distribute information. The information technology is usually associated with computers and related technologies applied to decision making (McNurlin 2009, Pp. 87).

Information technology (IT) is changing the traditional way of doing things, people who work in government, private companies, that direct personal or professional working in any field of IT used daily by using Internet, Credit cards, electronic payment of payroll, among other functions, that is why the role of IT in business processes such as manufacturing and sales have expanded greatly. The first generation of computers was designed to keep records and monitor the operational performance of the company, but the information was not timely because the analysis obtained on a given day actually described what was happened a week earlier (O'Brien 2009 Pp. 115). The current developments make it possible to capture and use the information when it is generated, i.e., have online processes. This has not only changed the way we do the work and the workplace but has had a major impact on the way in which firms compete.

Efficiently use information technology can gain a competitive advantage, but we need to find successful procedures for maintaining such advantages as a constant, and to provide alternative courses of action and resources to suit the needs of the moment, because the benefits do not always are permanent. The information system must be modified and updated regularly if you want to receive continuous competitive advantages. The creative use of information technology can provide administrators a new tool to differentiate human resources, products and / or services in respect of its competitors. This type of competitive pre-eminence can bring another group of strategies, such as a flexible and standards in time, capable of producing a wider variety of products at a lower price and in less time than the competition (Bird 2010, pp 98).

Information technologies are a tool increasingly important in business, but to implement a system company information does not guarantee that it gets results short term or long term (Veen 2007, ...