Chapter 3 Cloud Service Models - Cloud computing.pptx

cloud computing for big data analytics

1. Course: CSC1205 - Cloud Computing for Big Data Analytics Semester: January 2024 Lecturer: Ms Jayashiry Morgan

2. Chapter 3: Cloud Service Models

3. Cloud Service Models There are basically three service models for a cloud computing system, namely, Infrastructure-as-a-Service, Platform-as-a-Service and Software-as-a-Service.

4. Cloud Service Models The service models can be viewed as mapped layers: Textbook page 38

5. Infrastructure-as-a-Service (IaaS) IaaS is on-demand access to cloud-hosted physical and virtual servers, storage and networking - the backend IT infrastructure for running applications and workloads in the cloud.

6. Infrastructure-as-a-Service (IaaS) BENEFITS Higher availability Lower latency, improved performance Improved responsiveness Comprehensive security Faster access to best-of-breed technology

7. Infrastructure-as-a-Service (IaaS) USE CASES Common uses of IaaS includes: Disaster recovery Ecommerce Internet of Things (IoT), event processing, artificial intelligence (AI) Startups Software development

8. Platform-as-a-Service (PaaS) PaaS is on-demand access to a complete, ready-to-use, cloud-hosted platform for developing, running, maintaining and managing applications.

9. Platform-as-a-Service (PaaS) BENEFITS Faster time to market Low- to no-risk testing and adoption of new technologies Simplified collaboration A more scalable approach Less to manage

10. Platform-as-a-Service (PaaS) USE CASES PaaS can advance a number of development and IT initiatives including: API development and management Internet of Things (IoT) Agile development and DevOps Cloud-native development and hybrid cloud strategy

11. Software-as-a-Service (SaaS) SaaS is on-demand access to ready-to-use, cloud-hosted application software.

12. Software-as-a-Service (SaaS) BENEFITS Minimal risk Anytime/anywhere productivity Easy scalability

13. Software-as-a-Service (SaaS) USE CASES Today, just about any personal or employee productivity application is available as SaaS. If an end user or organization can find a SaaS solution with the required functionality, in most cases it will provide a significantly simpler, more scalable and more cost-effective alternative to on-premises software.

14. Cloud Service Models Textbook page 41

15. Summary of Personnel Responsibilities in Cloud Service Models Application Software Operating System Hardware and Virtual Resources SaaS Cloud service provider Cloud service provider Cloud service provider PaaS Customer Cloud service provider Cloud service provider IaaS Customer Customer Cloud service provider