Chapter 1: Software and Software Engineering

Nature of Software

Software serves as both a product and a vehicle for delivering products, managing and transforming data across various platforms.

Key Characteristic of Software

Software does not wear out like hardware but deteriorates over time due to changes and updates.

Types of Software Applications

Includes system software, application software, embedded software, engineering/scientific software, and artificial intelligence-based software.

Legacy Software Challenges

Outdated designs, poor documentation, and maintenance complexities that hinder continued viability and adaptability.

IEEE Definition of Software Engineering

A systematic, disciplined, and quantifiable approach to software development, operation, and maintenance.

Layers of Software Engineering

Includes quality focus, process layer, methods, and tools to support software development.

Software Process Framework Activities

Includes communication, planning, modeling, construction, and deployment.

Umbrella Activities in Software Engineering

Cross-cutting tasks like project tracking, risk management, quality assurance, and change control.

Process Adaptation

Adjusting the software process based on specific project requirements.

George Polya’s Problem-Solving Approach

Consists of understanding the problem, planning a solution, carrying out the plan, and examining the result.

Initiation of Software Projects

Often starts with an idea or market need, illustrated by examples such as SafeHome.

Importance of Software Engineering

Ensures quality, maintainability, and reliability in software development due to growing complexity.