Common Computer Based Information Systems Information Technology Essay

Common calculator Based Information Systems Information Technology EssayHuman resources- finds and hires people, handles such(prenominal) matters as sick leave, retirement benefits, evaluation, compensation, and professional development.Research- conducts product research and development, monitors and troubleshoots saucy products.Discuss the roles of the three signifiers of management in a corporation.Top level- relate with long-range planning and forecasting.Middle-level- deals with control, planning, decision making, and implementing long term goals.Supervisors- control working(a) matters, monitor day- to -day events, and supervise works.What argon the four most leafy vegetable computer-based selective information systems? execution processing system(TPS)Management information system(SIM)Decision dungeon systems(DSS) executive director support systems(ESS)Describe the different reports and their roles in managerial decision making.Transaction processing system(TPS)- reco rd day-to-day transactions. For example in accounting, which handles in six just about activities sales order processing, accounts receivable, inventory and purchasing, accounts payable, payroll, and general ledger.Management information system(SIM)-produce mold periodic, exception, and demand reports. Management information system aim database management systems to unify the databases of different departments.Decision support systems(DSS)-enable managers to get answers for unanticipated questions. Teams formed to language large problems use group decision support systems(GDDS). A DSS lie down of user, system software, data-internal and external, and decision models. Three types of decision models are strategic, tactcal, and operational.Executive support systems(ESS)-assist top-level executives. An executive support system is similar to MIS or DSS but easier to use. ESSs are design specific altogethery for top-level decision makers.What is the difference betwixt an office m echanisation system and a knowledge work system?Office mechanisation systems(OAS) support data workers who are involved with distribution and communication of information. spue managers and videoconferencing systems are OAS.Knowledge work systems(KWS) support knowledege workers, who creates information. Many engineers use computer aided design/ computer aided manufacturing(CAD/CAM) systems.CHAPTER 12 DATABASESDescribe the five dollar bill pellucid data groups or categories.Character-the most basic logical data element. It is a single letter, number or specialcharacter such as a punctuation mark or symbol standardised $.Field-field or group of cogitate character. A data field represents an connect(description/characteristic) of some entity (person, place, thing or object).Record-collection of related fields. A record represents a collection of attributes thatdescribe an entity.Table-collection of related records.selective informationbase-an integrated collection of logically r elated tables.What is the difference between batch processing and real-time processing? bunch processing-data is collected over a period of time and the processing happens subsequentall at one time.Real-time processing-happens immediately when the transaction occurs. mark and desexualise the five part of database management system programs.DBMS engine-a bridge between the logical view of the data and the physical view of the data. When users request data(logical perspective), DBMS engine handles the details of actually locating data(physical perspective).Data definition subsystem-the logical structure of data-base by using a data dictionary orschema. This dictionary contains a description of the structure of data in database.Data manipulation subsystem-provides tools for maintaining and analyzing data. Maintaining data known as data maintenance involves adding saucy data, deleting data and editing existing data. Analysis tools support viewing all or selected parts of data,queryin g database and generating reports.Application generation subsystem-provides tool to create data entry forms andspecialized programming languages that interface or work with common and widely used programming languages such as C or Visual Basic.Data administration subsystem manages the database database administrators (DBAs) are computer professionals who help define processing rights.What are the five types of databases? Why does more than one kind of database exist?-Individual-Company-Distributed-CommercialDatabases available for general and specific argument purposes include business directories, demographic data, business statistical information, text databases, and Web databases.What are some of the benefits and limitations of databases? Why is security department a concern?Two important security concers are illegal use of data and unauthorized access. Most organizations use firewalls to protect their internal networks. Some benefits are in business such as financial and marke ting. Limitation is for security of the organizations.