Describe the differences between the "two-tier" and "three-tier" architectures in terms of creating software. Which approach would be more efficient when creating a web app? Why?

Describe the differences between two-tier and three-tier application architectures. When it comes to web apps, which one is better? Why?

Compare the following: “A traditional landline telephone and a modern smartphone messaging app.” a. From your observations, discuss any elements in the smartphone messaging app's conceptual model that might be confusing or counterintuitive for users familiar with the traditional landline telephone. b. Analyze any three pros and cons of each communication tool's design, especially in relation to their conceptual models and interface metaphors.

Part 1: Development history of the interface of Apple Write a summary (300 words) that include information such as: • Purpose of interface/ why would users use this interface? • Who are system users and what are the uses? • Interface traffic, development history, developer(s) information • How does it operate, what interactive features does it have, where does entry information go, who/how many people/groups manage the system, multiple formats (i.e., web and app), can it be purchased, etc. Part 2: Usability Evaluation • Conduct a usability evaluation of the interface using the System Usability Scale (SUS). See pages 4-7 of the linked document for the scale and instructions on use: https://digital.ahrq.gov/sites/default/files/docs/survey/systemusability scale%2528sus%2529_comp%255B1%255D.pdf • Write a summary of your findings (300 words). What does this say about the current state of your selected interface and how does this influence your suggested improvements?