Unit

Integration

Module

Regression

Efficiency, Reliability, Usability and Robustness

People, Quality, Process and Productivity

Performance, Robustness, Maintainability and Reusability

Complexity, Conformity, Changeability and Invisibility

Defining, Prototyping, Testing, Delivery

Planning, Risk Analysis, Engineering, Customer Evaluation

Quick Design, Build Prototype, Evaluate Prototype, Refine Prototype

Requirements

Staffing

Reliability

Product performance

Functionality

The discipline is relatively new, say in comparison to bridge building that is an activity that has millennia of practice

Software engineering (as opposed to other forms of engineering, such as Civil) is an art – not a science

It is designed by humans and therefore flawed

The complexity of systems and their interaction continues faster than we can understand it

Procedural design

Interface design

Architectural design

Data design

Data sharing

Inter-module dependency

Internal strength of a module

Code complexity

Testing strategy

Code execution

Dependency between modules

Strength within module

ER diagram

Flowchart

UML

DFD

Single large module

Only coding process

Testing modules

Breaking system into smaller modules