CSC 303 Software Engineering 1

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Questions and Answers

Which of the following is NOT a characteristic of E-type software evolution?

Conservation of familiarity

Self-regulation

Total elimination of complexity (correct)

Reducing quality

What happens to an E-type software system if it does not adapt to real world changes?

It becomes more complex.

It gains in familiarity.

It remains equally useful.

It becomes progressively less useful. (correct)

Why is maintaining familiarity crucial in E-type software evolution?

To reduce the overall cost of development.

To implement changes effectively. (correct)

To enhance user interface design.

To speed up the programming process.

What does the term 'organizational stability' refer to in the context of evolving E-type systems?

A consistent average global activity rate. Signup and view all the answers

In the software development paradigm, which phase is NOT included?

Testing and deployment Signup and view all the answers

What is meant by 'feedback systems' in E-type software evolution?

They consist of multi-loop and multi-level interactions. Signup and view all the answers

How does the size of implementing changes in E-type systems relate to business lifestyle changes?

It generally grows to address lifestyle changes. Signup and view all the answers

Which of the following describes the programming paradigm?

It includes maintenance and programming aspects. Signup and view all the answers

What characterizes Static-type (S-type) software?

It operates with fixed functionality. Signup and view all the answers

Which of the following is NOT a defining aspect of software engineering?

Development of hardware products. Signup and view all the answers

What is the primary objective of software evolution?

To ensure the software satisfies expected requirements. Signup and view all the answers

Which category of software is specifically designed for stability and consistency?

Static-type (S-type) Signup and view all the answers

What type of software involves procedures that are explicitly defined but does not provide immediate solutions?

Practical-type (P-type) Signup and view all the answers

Which of the following is an example of Static-type (S-type) software?

Desktop applications Signup and view all the answers

What is the outcome of using software engineering principles and methods?

Efficient and reliable software products. Signup and view all the answers

What differentiates Embedded-type (E-type) software from other categories?

It is embedded within non-dedicated hardware. Signup and view all the answers

Study Notes

Definition of Software

Software is a collection of executable programming code, libraries, and documentation.
A program serves a computational purpose; a software product is built for specific requirements.

Definition of Engineering

Engineering involves developing products using well-defined scientific principles and methods.

Software Engineering

A branch of engineering focused on developing software products using established scientific principles and procedures.
The goal is to create efficient and reliable software.

Software Evolution

Involves the process of developing software products, including initial development, maintenance, and updates to meet requirements.

Software Evolution Laws (Lehman)

Software categorized into three types:
- Static-type (S-type): Fixed functionality with infrequent changes; suitable for stable environments.
- Practical-type (P-type): Defined by procedures; adapts to real-world requirements, e.g., gaming software.
- Embedded-type (E-type): Highly adaptive due to real-world factors; often involves domains like online trading.

Characteristics of Static-type (S-type)

Operates with predetermined functions; updates are rare.
Includes legacy systems where stability is prioritized.

Characteristics of Practical-type (P-type)

Contains procedures that fulfill specific requirements; adapts to real-world conditions.

Characteristics of Embedded-type (E-type)

Must adapt continuously to remain useful due to changing real-world factors.
Faces increasing complexity unless actively managed.

Laws of E-type Software Evolution

Continuing change: Must adapt to avoid becoming obsolete.
Increasing complexity: Evolves in complexity unless managed.
Conservation of familiarity: Knowledge about software's development must be maintained.
Continuing growth: Adaptations must match business lifestyle changes.
Reducing quality: Quality declines without rigorous maintenance.
Feedback systems: Must utilize multi-loop feedback for successful modifications.
Self-regulation: Evolution processes tend to normalize over time.
Organizational stability: Activity rates in evolving systems remain stable throughout their lifespan.

Software Paradigms

Conceptual frameworks guiding the development and design of software.
Programming paradigms are subsets of software design paradigms, part of broader software development paradigms.

Software Development Paradigm

Encompasses stages like:
- Requirement gathering
- Software design
- Programming

Software Design Paradigm

A component of the software development process, including:
- Design
- Maintenance
- Programming

Programming Paradigm

Closely related to the actual programming aspects within software development processes.

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Description

This quiz explores the fundamentals of software and engineering principles. It covers definitions and distinctions between software products and engineering practices, fostering a deeper understanding of the software development lifecycle. Ideal for students of CSC 303.