Lesson 1 Introduction to Software Engineering

SYSTEM SOFTWARE, APPLICATION SOFTWARE, EMBEDDED SOFTWARE, WEB SOFTWARE, AI SOFTWARE

5 TYPES OF SOFTWARE

SYSTEM SOFTWARE

Operating systems, device drivers (e.g., Windows, Linux).

APPLICATION SOFTWARE

Programs for users (e.g., MS Word, games).

EMBEDDED SOFTWARE

Built into devices (e.g., washing machines, traffic lights).

WEB SOFTWARE

Web-based apps (e.g., Gmail, Facebook).

AI SOFTWARE

Smart systems (e.g., chatbots, recommendation engines).

SOFTWARE ENGINEERING

is the application of engineering principles to the design, development, testing, and maintenance of software systems.

INTANGIBLE, EASY TO CHANGE, NEVER WEARS OUT, CUSTOM BUILT OR GENERIC

NATURE OF SOFTWARE

HELPS IN MANAGING COMPLEXITY, PROMOTES TEAM COLLABORATION, REDUCES COSTS AND DEVELOPMENT TIME, ENSURES SOFTWARE QUALITY AND RELIABILITY, MAKES SOFTWARE SCALABLE AND MAINTAINABLE

IMPORTANCE OF SOFTWARE ENGINEERING

RAPID TECHNOLOGY CHANGE, UNCLEAR OR CHANGING REQUIREMENTS, TIME AND BUDGET CONSTRAINTS, ENSURING QUALITY AND SECURITY, MANAGING TEAM COMMUNICATION

CHALLENGES IN SOFTWARE ENGINEERING

SOFTWARE

A collection of programs, procedures, and documentation that perform tasks on a computer system.

IEEE DEFINITION OF SOFTWARE ENGINEERING

The application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software.

INTANGIBLE

Cannot be touched like hardware.

EASY TO CHANGE

Flexible but may lead to instability.

NEVER WEARS OUT

Can become outdated or unmaintainable.

CUSTOM-BUILT OR GENERIC

Built for specific clients or for mass use.