The document discusses the complexities of IT infrastructure architecture, emphasizing the importance of solid, scalable, and modular designs for agile software development. It explores the existence of multiple infrastructure definitions, the dual role of databases in infrastructure, and highlights application server products. Additionally, it addresses why non-functional requirements (NFRs) differ from quality attributes.

1. IT Infrastructure Architecture Infrastructure Building Blocks and Concepts
by Sjakk Laan
Publisher: Lulu Press Inc. 3rd Edition, 2017
Write a 500-800 word essay summarizing Chapters 1-3, covering all or most of the following
questions.
Name two reasons why infrastructure has become more complex in recent years.
Why is a solid, scalable, and modular infrastructure important for agile software
development?
What could be the reason many infrastructure definitions exist?
Name the reason why databases should be part of the infrastructure.
Name the reason why databases should NOT be part of the infrastructure.
Name at least two products that provide an application server.
Why are NFRs not called quality attributes?