The three-tier model is aQuestion 5Select one:a.software architectureb.software architecture and a software design pattern.c.software design pattern.

Step 1: Break Down the Problem

To answer this question, we need to understand the three-tier model and its classification within software architecture and design patterns.

Step 2: Relevant Concepts

1. Three-Tier Model: A software architecture pattern that separates applications into three logical and physical computing tiers: presentation, application logic, and data storage.
2. Software Architecture: Refers to the fundamental structures of a software system and the discipline of creating such structures.
3. Software Design Pattern: A general repeatable solution to a commonly occurring problem in software design.

Step 3: Analysis and Detail

• The three-tier model is primarily considered a form of software architecture because it delineates the structure of software applications into distinct layers.
• It may also encompass aspects of software design patterns, particularly as it dictates how different layers interact and communicate.

Step 4: Verify and Summarize

Given that the three-tier model serves as both a structural guide (software architecture) and can incorporate design principles (design pattern), the most comprehensive option aligns with both concepts.

Final Answer

b. software architecture and a software design pattern.