SEQA - INTRODUCTION to SOFTWARE ENGINEERING PARADIGM

 Software Engineering and Quality Assurance

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To introduce the methodologies involved in the development and maintenance of software, over its entire life cycle.

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OBJECTIVE

To be aware of

■ Different life cycle models

■ Requirement dictation process

■ Analysis modeling and specification

■ Architectural and detailed design methods

■ Implementation and testing strategies

■ Verification and validation techniques

■ Project planning and management

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UNIT – I

INTRODUCTION SOFTWARE ENGINEERING PARADIGM

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Software’s Dual Role

• Software is a product

– Delivers computing potential

– Produces, manages, acquires, modifies, displays, or transmits information

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• Software is a vehicle for delivering a product

– Supports or directly provides system functionality

– Controls other programs (e.g., an operating system)

– Effects communications (e.g., networking software)

– Helps build other software (e.g., software tools)

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What is Software?

Software is a set of items or objects that form a “configuration” that includes

• programs

• documents

• data ...

• software is engineered

• software doesn’t wear out

• software is complex

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Wear vs. Deterioration

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Software Applications

• system software

• application software

• engineering/scientific software

• embedded software

• product-line software

• WebApps (Web applications)

• AI software

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Software Myths

• Affect managers, customers (and other non-technical stakeholders) and practitioners

• Are believable because they often have elements of truth,

but …

• Invariably lead to bad decisions,

therefore …

• Insist on reality as you navigate your way through software engineering.

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