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Related Flashcards
Cards In This Set
| Front | Back |
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4 Ps and their techniques
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> The product>The process>The project
>The problem |
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Step by step activity of the process involved
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Algorithm
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Why is this course important?
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>Most errors(54%) are detected after coding and testing
>Almost half of all the errors in software(45%) are in requirements and design >Most errors made during requirements analysis are nonclerical (77%) and may arise because of incorrect facts |
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Is a set of inter-dependent compounds. (Some of which may be systems in their own right) which collectively accomplish certain objectives.
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System
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___ + ___+___ = information System
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Information Base + Applications + interfaces = Information System
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Differs from other kinds of systems in that its objectives is to monitor/document the operations of some other system, which we can call a target system.
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Information System
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Can store, manage, and process large amounts of information for routine business transactions, e.g. , a bank customer account system.
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Data Processing(DP)
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4 main types of information systems
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>Data Processing
>Inforamation Management >Decision Support > Expert System |
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Provide periodic reports for planning, control and decision making, e.g. , generate end-of-the-month reports, sharing number of new accounts, transaction volume etc.
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Information Management
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Support decision maker by providing information or demand, e.g. , an online system that combines a spreadsheet with a database to help executives draw up a new budget.
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Decision Support
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Capture expertise of decision makers in interpreting information or solving problems and serve as assistants to the users of an information system e.g. , a system that offers advice to a loan manager
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Expert System
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An organized collection of logically related data.
By organize we mean that data are structured soi as to be easily stored, manipulated and retrieved by users. |
Database
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May be of any size an d complexity
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Data
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Data that has been processed in such a way that it has meaning or relevance to the person using it.
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Inforamtion
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Data that can be described with the characteristics of other data.
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Metadata
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