Answer:
True.
Explanation:
The database can contain "bad data".
Bad Data is incorrect,incomplete,irrelevant or inaccurate records and the bad data can only be corrected or by data cleansing.
Data cleansing is deleting the bad data from the database.It is very important technique which is implemented by almost every one dealing with bad data.
Hence we conclude that the answer to this question is True.
Answer:
Explanation:Systems Analysis
It is a process of collecting and interpreting facts, identifying the problems, and decomposition of a system into its components.
System analysis is conducted for the purpose of studying a system or its parts in order to identify its objectives. It is a problem solving technique that improves the system and ensures that all the components of the system work efficiently to accomplish their purpose.
Systems Design
It is a process of planning a new business system or replacing an existing system by defining its components or modules to satisfy the specific requirements. Before planning, you need to understand the old system thoroughly and determine how computers can best be used in order to operate efficiently.
System Design focuses on how to accomplish the objective of the system.
System Analysis and Design (SAD) mainly focuses on −
Systems
Processes
Technology
Answer:
Physical science is the study of the inorganic world. That is, it does not study living things. (Those are studied in biological, or life, science.) The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.
