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Question:
(a) One of the steps in the five-step problem-solving model is implementation. Implementation is considered a key step in the problem-solving model. A problem may be identified and the best solution designed, but if the solution is not implemented properly, the solution may fail.
(i) Identify and briefly describe the major steps in the implementation process.
(ii) Explain how the risks inherent in a large MIS development project could be minimised.
(b) Enterprise's information systems must protect data and information from misuse, ensure availability to authorized users and display confidence in its accuracy. Describe, with examples, the THREE main objectives of information security.
A basic model of Database Access Control Models of database access control have grown out of previous work on protection in operating systems. Let us talk about one simple mode
A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE
Describe five main functions of a database administrator. Ans: A database administrator (DBA) is a person who is accountable for the environmental aspects of a database. Genera
Describe log based recovery The most usably structure for recording data base modification is the LOG the log is a sequence of log records recording all the update activities i
Every School has many teachers and many students. Each student is assigned to one school and each teacher works for one school only. Each teacher teaches more than one subject but
What is meant by computing the closure of a set of functional dependency? The closure of F denoted by F + is the set of functional dependencies logically implied by F.
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What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
Define instance and schema? Instance: Collection of data kept in the data base at a particular moment is known as an Instance of the database. Schema: The o
random file orgnization
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