Chapter 4. Gathering and Analyzing Operational and Infrastructure Requirements

Terms you'll need to understand:

• Performance

• Availability

• Scalability

• Security

• Maintainability

• Accessibility

• Deployability

• Extensibility

• Reliability

• Scaling up and scaling out

Techniques you'll need to master:

• Determining causes of unavailability

• Analyzing security threats, such as data tampering and denial of service

• Understanding how to incorporate accessibility features into your requirements

• Understanding the best ways to deploy your applications successfully to your user groups

• Understanding how to determine the impact of operational requirements on your current infrastructure

This chapter deals with the operational and infrastructure requirements of developing a software system. The operational requirements deal with the performance, availability, scalability, security, maintainability, accessibility, deployment, and extensibility of a solution.

To help you remember the eight key operational requirements, the acronym PASS MADE is used throughout the book and in questions referencing these key areas:

• Performance

• Availability

• Security

• Scalability

• Maintainability

• Accessibility

• Deployability

• Extensibility