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Details Title: MIS Exam 3 Description: Ch. 14 Terms Total Flash Cards: 20 Created: 05/11/2005 21:43:10	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term hacker Definition A person who gains unauthorized access to a computer network for profit, criminal mischief, or personal pleasure. Term computer viruses Definition Rogue software programs that are difficult to detect, which spread rapidly through computer systems, destroying data or disrupting processing and memory systems. Term antivirus software Definition Software designed to detect, and often eliminate, computer viruses from an information system. Term bugs Definition Program code defects or errors. Term application controls Definition Specific controls unique to each computerized application. Term data security controls Definition Controls to ensure that data files on either disk or tape are not subject to unauthorized access, change, or destruction. Term online transaction processing (OLTP) Definition Transaction processing mode in which transactions entered online are immediately processed by the computer. Term disaster recovery plan Definition Plan for running the business in the event of a computer outage. Includes organizational procedures as well as backup processing, storage and database capabilities. Term Mirroring Definition Duplicating all the processes and transactions of a server on a backup server to prevent any interruption in service if the primary server fails. Term clustering Definition Linking two computers together so that the second computer can act as a backup to the primary computer or speed up processing. Term encryption Definition The coding and scrambling of messages to prevent their being read or accessed without authorization. Term digital signature Definition A digital code that can be attached to an electronically transmitted message to uniquely identify its contents and the sender. Term structured analysis Definition A method for defining system inputs, processes, and outputs and for partitioning systems into subsystems or modules that show a logical graphic model of information flow. Term data flow diagram Definition Primary tool for structured analysis that graphically illustrates a system's component processes and the flow of data between them. Term structured design Definition Software design discipline encompassing a set of design rules and techniques for designing systems from the top down in hierarchical fashion. Term Computer-aided software engineering (CASE) Definition Automation of step-by-step methodologies for software and systems development to reduce the amounts of repetive work the developer needs to do. Term resource allocation Definition The determination of how costs, time, and personnel are assigned to different phases of a systems development project. Term walkthrough Definition A review of a specification or design document by a small group of people carefully selected based on the skills needed for the particular objectives being tested. Term debugging Definition The process of discovering and eliminating th errors and defects-the bugs-in program code.