Super classsubclass relationship also known as generalization hierarchy; allow objects to be built from other objects. Such relationships allow us to explicitly take advantage of the commonality of objects when constructing new classes. The super-sub class hierarchy is a relationship between classes, where one class is the parent (super or ancestor) class of another (derived) class. The real advantage of using this technique is that we can build on what we already have and more important, reuse what we already have.
gregorymasila answered the question on January 24, 2018 at 16:48
- Briefly discuss UML and State significance of the Unified Modeling Language (UML) in object orientation (Solved)
Briefly discuss UML and State significance of the Unified Modeling Language (UML) in object orientation
Date posted: January 24, 2018. Answers (1)
- Outline some characteristics of a bad design? (Solved)
Outline some characteristics of a bad design?
Date posted: January 24, 2018. Answers (1)
- State the significance of analysis in object-oriented approach to systems development. (Solved)
State the significance of analysis in object-oriented approach to systems development.
Date posted: January 24, 2018. Answers (1)
- Define inheritance (Solved)
Define inheritance
Date posted: January 24, 2018. Answers (1)
- Briefly explain the main phases of USDP. (Solved)
Briefly explain the main phases of USDP.
Date posted: January 24, 2018. Answers (1)
- Most experts agree on a set of common principles of quality software: Briefly discuss the design principles stated below (Solved)
Most experts agree on a set of common principles of quality software: Briefly discuss the design principles stated below:
Reusability
Reliability
Robustness
Extensibility
Scalability
Date posted: January 19, 2018. Answers (1)
- Identify and discuss five aspects of human intelligence that could be used to characterize intelligent knowledge based systems.(Solved)
Identify and discuss five aspects of human intelligence that could be used to characterize intelligent knowledge based systems.
Date posted: January 9, 2018. Answers (1)
- Define a table.(Solved)
Define a table.
Date posted: January 3, 2018. Answers (1)
- After the system is operational, post-implementation evaluation performed. How is this
conducted and what is its significance?(Solved)
After the system is operational, post-implementation evaluation performed. How is this
conducted and what is its significance?
Date posted: December 18, 2017. Answers (1)
- What could form the source of information for developers of a new system?(Solved)
What could form the source of information for developers of a new system?
Date posted: December 18, 2017. Answers (1)
- In fact finding for systems development a number of techniques for investigating and
recording user requirements exist. State the four main techniques.(Solved)
In fact finding for systems development a number of techniques for investigating and
recording user requirements exist. State the four main techniques.
Date posted: December 18, 2017. Answers (1)
- Identify the main participants in the systems development process(Solved)
Identify the main participants in the systems development process
Date posted: December 18, 2017. Answers (1)
- State the THREE advantages and THREE disadvantages of using CASE tools in the systems development process.(Solved)
State the THREE advantages and THREE disadvantages of using CASE tools in the systems development process.
Date posted: December 18, 2017. Answers (1)
- What is the role of the accountant in IS management, delivery and quality assurance
(Solved)
What is the role of the accountant in IS management, delivery and quality assurance
Date posted: December 18, 2017. Answers (1)
- What could lead to changes to the original project plan?(Solved)
What could lead to changes to the original project plan?
Date posted: December 18, 2017. Answers (1)
- MIS projects if not well managed can fail. What causes project failure?(Solved)
MIS projects if not well managed can fail. What causes project failure?
Date posted: December 18, 2017. Answers (1)
- Many modern information systems utilize multimedia technology to deliver information products to users. Explain giving the main applications of multimedia(Solved)
Many modern information systems utilize multimedia technology to deliver information products to users. Explain giving the main applications of multimedia
Date posted: December 18, 2017. Answers (1)
- Outline the duties and responsibilities of the project manager(Solved)
Outline the duties and responsibilities of the project manager
Date posted: December 18, 2017. Answers (1)
- At the start of a project, a Project Initiation Document (PID) may be drawn up setting out the terms of reference for the project. Outline the...(Solved)
At the start of a project, a Project Initiation Document (PID) may be drawn up setting out the terms of reference for the project. Outline the contents of a PID.
Date posted: December 18, 2017. Answers (1)
- What do you understand by the term audit trail?(Solved)
What do you understand by the term audit trail?
Date posted: December 18, 2017. Answers (1)