Cloud service models (IaaS, PaaS, SaaS) in Intro to Computing - Flowchart & Logic Diagram

Process Overview

This flowchart explains the three main cloud service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). It shows how each model provides different levels of control and responsibility between the cloud provider and the user.

Flowchart

Rectangle

Yes No↓

Rectangle

Yes No↓

Rectangle

↓

Rectangle

This flowchart shows the decision process for choosing between IaaS, PaaS, and SaaS based on how much control the user wants over hardware, operating system, and applications.

Step-by-Step Trace - 7 Steps

Step 1: User wants to use cloud services

Step 2: Check if user wants to manage hardware

Step 3: User says Yes to managing hardware

Step 4: User says No to managing hardware

Step 5: User wants to manage OS and runtime

Step 6: User does not want to manage OS and runtime

Step 7: Process ends with chosen cloud service model

Diagram

 +-------------------+       +-------------------+       +-------------------+
 |                   |       |                   |       |                   |
 |      IaaS         |       |      PaaS         |       |      SaaS         |
 | (Infrastructure)  |       | (Platform)        |       | (Software)        |
 |                   |       |                   |       |                   |
 | User manages OS & |       | Provider manages  |       | Provider manages  |
 | apps; Provider    |       | hardware & OS;    |       | everything; User  |
 | manages hardware  |       | User manages apps |       | uses software     |
 +-------------------+       +-------------------+       +-------------------+

This diagram shows the division of responsibilities between the cloud provider and the user for each cloud service model: IaaS, PaaS, and SaaS.

Flowchart Quiz - 3 Questions

Which cloud model lets you manage the operating system but not the hardware?

A PaaS

B IaaS

C SaaS

D None of the above

Key Result

Cloud service models differ by how much control the user has over hardware, operating system, and applications.