Get premium membership and access questions with answers, video lessons as well as revision papers.
-Poor conceptual meaningful notation.
-To avoid the problem of layout algorithms and aesthetics of diagrams, they prefer boxes and lines and do nothing more than represent (primary-foreign key) relationships among resulting tables.(a few exceptions)
-lack of built-in methodology support.
-poor tradeoff analysis or user-driven design preferences.
-poor design verification and suggestions for improvement.
jim items answered the question on March 12, 2019 at 14:53
- Explain the Keyboard Layout(Solved)
Explain the Keyboard Layout
Date posted: March 12, 2019. Answers (1)
- Give the advantages of laptops.(Solved)
Give the advantages of laptops.
Date posted: March 12, 2019. Answers (1)
- Distinguish between a centralized and a client computer Database management systems(Solved)
Distinguish between a centralized and a client computer Database management systems.
Date posted: March 12, 2019. Answers (1)
- Discuss the functions of computer Database system utilities.(Solved)
Discuss the functions of computer Database system utilities.
Date posted: March 12, 2019. Answers (1)
- What are the most commonly used computer DBMS interfaces?(Solved)
What are the most commonly used computer DBMS interfaces?
Date posted: March 12, 2019. Answers (1)
- Discuss the types of computer DBMS Languages.(Solved)
Discuss the types of computer DBMS Languages.
Date posted: March 12, 2019. Answers (1)
- Explain two types of computer data independence.(Solved)
Explain two types of computer data independence.
Date posted: March 12, 2019. Answers (1)
- Discuss the types of database states and database schema as studied in computer applications.(Solved)
Discuss the types of database states and database schema as studied in computer applications.
Date posted: March 11, 2019. Answers (1)
- Discuss the advantages and disadvantages of computer Network data models.(Solved)
Discuss the advantages and disadvantages of computer Network data models.
Date posted: March 11, 2019. Answers (1)
- Discuss advantages and disadvantages of Hierarchical computer data models.(Solved)
Discuss advantages and disadvantages of Hierarchical computer data models.
Date posted: March 11, 2019. Answers (1)
- Discuss conditions under which one should not use a Database management system (DBMS).(Solved)
Discuss conditions under which one should not use a Database management system (DBMS).
Date posted: March 11, 2019. Answers (1)
- Define the following terms as used in computer applications:
a)Database.
b)Data.
c)Mini-world.
d)DBMS.
e)Database system.(Solved)
Define the following terms as used in computer applications:
a)Database.
b)Data.
c)Mini-world.
d)DBMS.
e)Database system.
Date posted: March 9, 2019. Answers (1)
- Write a C program that prompts a user to enter radius of a circle and calculate the Area(Solved)
Write a C program that prompts a user to enter radius of a circle and calculate the Area.
Date posted: March 6, 2019. Answers (1)
- Explain the following input/output terms as used in computer systems. Give an example. (i) Read (ii) Write(Solved)
Explain the following input/output terms as used in computer systems. Give an example
(i) Read
(ii) Write
Date posted: February 23, 2019. Answers (1)
- Explain three functions of an information system in an organisation(Solved)
Explain three functions of an information system in an organisation.
Date posted: January 20, 2019. Answers (1)
- Explain ways in which computers can be used in the transport industry. (Solved)
Explain ways in which computers can be used in the transport industry.
Date posted: January 20, 2019. Answers (1)
- A school has been advised to employ a database administrator. State responsibilities of this personnel in the school.(Solved)
A school has been advised to employ a database administrator. State responsibilities of this personnel in the school.
Date posted: January 20, 2019. Answers (1)
- A computer laboratory experiences power supply problems. Describe three power related problems that should be addressed(Solved)
A computer laboratory experiences power supply problems. Describe three power related problems that should be addressed.
Date posted: January 20, 2019. Answers (1)
- Arnold a programmer intends to create a user input interface screen for a system. State factors that he should consider. (Solved)
Arnold a programmer intends to create a user input interface screen for a system. State factors that he should consider.
Date posted: January 20, 2019. Answers (1)
- Describe three arithmetic errors that may occur during computerized data processing(Solved)
Describe three arithmetic errors that may occur during computerized data processing.
Date posted: January 20, 2019. Answers (1)