Question 1

Office automation is more complex than accounting packages.

Accepted Answer

False

Question 2

In the object-oriented approach to systems design,inheritance means that each object instance inherits the attributes and operations of the class to which it belongs.

Accepted Answer

Inheritance is one of the main principles in object-oriented programming where a subclass (child class) inherits the properties and methods of a superclass (parent class). This allows for code reusability and promotes a hierarchical structure in object-oriented systems design.

Question 3

In the object-oriented approach to systems design,when an operation is performed on an object,an attribute will always be changed.

Accepted Answer

False

Question 4

The Computer Aided Software Engineering (CASE)coding model transforms the structure diagram into computer code.

Accepted Answer

This statement is true as the CASE coding model is a software tool used to automate the process of generating computer code from the design documents that are created during the software development life cycle, which could include structure diagram, flowchart, or other design documents.

Question 5

The detailed design phase of the Systems Development Life Cycle is a linear process with each of five steps occurring once and in its proper sequence.

Accepted Answer

The detailed design phase of the Systems Development Life Cycle is an iterative process where each step can be revisited multiple times and may not necessarily occur in a strictly linear sequence.

Question 6

The entity relationship diagram is used to represent object-oriented designs.

Accepted Answer

The answer of The entity relationship diagram is used to...

Question 7

The design and programming of modern systems follows one of two basic approaches: the structured approach and the object-oriented approach.

Accepted Answer

This statement is true. The structured approach emphasizes dividing a program into smaller modules with well-defined inputs, outputs, and actions. The object-oriented approach focuses on creating objects that encapsulate data and behavior, and interact with other objects to accomplish tasks. Both approaches have their own advantages and disadvantages, and the choice of approach depends on the specific requirements of the system being developed.

Question 8

The concept of reusability is central to the structured approach to systems design.

Accepted Answer

The answer of The concept of reusability is central to...

Question 9

In the object-oriented approach to systems design,an instance is a logical grouping of individual objects which share the same attributes and operations.

Accepted Answer

The answer of In the object-oriented approach to systems design,an...

Question 10

In a Computer Aided Software Engineering (CASE)environment,the most important use of a data flow diagram is to present a graphic display of the system.

Accepted Answer

The answer of In a Computer Aided Software Engineering (CASE)environment,the...

Question 11

In-house developed systems are less reliable than commercial software.

Accepted Answer

The answer of In-house developed systems are less reliable than...

Question 12

The context level data flow diagram is a physical input to the lower CASE models that automatically produce program code.

Accepted Answer

The context level data flow diagram is a high-level representation of the system's inputs and outputs. It does not automatically produce program code, but serves as a starting point for further modeling and design. Lower CASE models may include detailed data flow diagrams, entity-relationship diagrams, and data dictionaries, which can be used to generate code or database structures.

Question 13

In the object-oriented approach to systems design,it is possible for an object class to inherit attributes and operations of another object class.

Accepted Answer

Inheritance is a fundamental concept of object-oriented programming that allows a class to derive attributes and methods from another class. The derived class is called a subclass or child class, and the original class is called a superclass or parent class.

Question 14

In the object-oriented approach to systems design,a vendor is an example of an attribute.

Accepted Answer

A vendor is not an attribute. In the object-oriented approach, attributes refer to the characteristics or properties of an object. A vendor, on the other hand, is typically an object in its own right, representing a supplier or seller of goods or services.

Question 15

A point-of-sale terminal is an example of electronic data input from source documents.

Accepted Answer

The answer of A point-of-sale terminal is an example of...

Question 16

If system development is conducted properly,most system maintenance costs can be eliminated.

Accepted Answer

While proper system development can minimize maintenance costs, it cannot eliminate them entirely. Systems will still require updates, bug fixes, and occasional enhancements even after they are developed and implemented. Planning for and budgeting for ongoing maintenance is still necessary.

Question 17

During maintenance of a system developed using Computer Aided Software Engineering (CASE)tools,changes to the system are made directly through the data flow diagram.

Accepted Answer

The answer of During maintenance of a system developed using...

Question 18

Output of the Management Reporting System may vary considerably among companies.

Accepted Answer

The output of the Management Reporting System (MRS) depends on various factors such as the company's business model, data sources, reporting requirements, and decision-making processes. Hence, the output of the MRS can vary significantly among companies.

Question 19

Output reporting includes both paper and electronic reports.

Accepted Answer

Output reporting can include both paper and electronic reports depending on the needs and preferences of the organization or individual.

Question 20

Information as to which databases are required for a new system can be obtained from the entity relationship diagram.

Accepted Answer

The entity relationship diagram depicts the relationships between different entities and their attributes, which can help identify the necessary databases for a new system.

Quiz 14: Construct, Deliver, and Maintain Systems Projects