Software Engineering and Quality Assurance
To introduce the methodologies involved in the development and maintenance of software, over its entire life cycle.
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
UNIT – I
INTRODUCTION SOFTWARE ENGINEERING PARADIGM
Software’s Dual Role
• Software is a product
– Delivers computing potential
– Produces, manages, acquires, modifies, displays, or transmits information
• 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)
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
Wear vs. Deterioration
Software Applications
• system software
• application software
• engineering/scientific software
• embedded software
• product-line software
• WebApps (Web applications)
• AI software
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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