Software processes

Introduction

• Related set of activities that lead to the production of a software product
• Life cycle model
• Framework: Planning, Standards, Visibility, Control
• Choosing an appropriate life cycle
• Type: Sequential, Prototyping, Staged Delivery, Iterative Incremental

Sequential Life Cycle Models

• Pure Waterfall Models
• Modified Waterfall Models

Staged Delivery Life Cycle Models

• Start out as waterfall, but later deliver in staged or increments
• Design-to-Schedule Model: Prioritize high-priority features

Prototyping Life Cycle Models

• Rapid Prototyping Model
• Evolutionary Prototyping Model

Spiral Model

• Iterative/Incremental Life Cycles
• Unified process life cycle model

Agile Software development method

• Sequential or plan-driven methods
• Waterfall, Iterative, Spiral, V-model
• Agile manifesto’s 4 values
• individuals and interactions over processes and tools
• working software over detailed documentation
• customer collaboration over contract negotiation
• responding to change over following a plan
• Sequential vs agile
• standard SLC for 40 years vs value delivery with 1-4 weeks in each iteration
• value delivery at project completion vs continuous feedback
• waste vs lean philosophy minimizes waste
• Agile scrum
• Agile kanban