Table: Example of the Difference Between Company and Vendor Revenue, 2017 and 2018
Company Revenue Modeling
Technology Underlying Public Cloud Service Offerings
Treatment of Different Currencies and Exchange Rates
Table: Average Exchange Rates Used in First-Half Year Tracker in 2019
Historical Data Reporting
Determination of "Other"
Appendix: Frequently Asked Questions
What Are the Key Attributes of a Cloud Service?
Table: Attributes of Cloud Services
On Which Part of the Cloud Ecosystem Does the Tracker Focus?
What Are the Criteria for "Multitenancy"?
What Is the Difference Between Cloud Software (SaaS and PaaS) and Hosted Application Management?
Figure: Comparison Between Cloud Software and Hosted Application Management
Are There Various Levels of Self-Service Capabilities Among Different Public Cloud Services Types?
How Does IDC Account for a Single-Tenant Application Being Offered as a Service on a Cloud Infrastructure Service (Like Amazon's EC2 or Microsoft's Azure)?
Some Service Providers Are Now Offering "Dedicated" Cloud Services That Are Provisioned Rapidly and Dynamically from Their Multitenant Services Pools. An Example Would Be Amazon's Dedicated Instances. Are These Services Counted in the Public Cloud Services Tracker?
How Does the Tracker Categorize Services That Offer Some Level of Dedicated Resource Within an Otherwise Public Cloud Service (e.g., Cloud Archiving Services That Offer a Dedicated Storage Option)?
Are We Counting the Money the Vendor Gets or the Money an Enterprise or Consumer Pays for the Service?
How Does IDC Allocate Revenue for Cloud Services to Different Cloud Services Categories? For Example, Does Revenue from a Customer Buying CRM SaaS Get Allocated Among CRM (Apps) and Other Categories (e.g., IaaS, Data Access) the Service Provider Uses to Support Delivery of the CRM SaaS Offering?
How Is Revenue Attributed Geographically in the Tracker?
How Is the Revenue of Acquired Companies Displayed in the Tracker?
There Is an Increasing Variety of Supplier and Partner Relationships Emerging in the Cloud Services World. How Does IDC Make Revenue Allocation Decisions When There Are Different Partner Relationships?
What About Telco Revenue?
How Do We Handle Public Cloud Services Revenue That Is Generated from Third-Party Software?
Where Do We Include Data Transfer Fees in the Tracker?
How Does IDC Account for Hadoop Services in the Cloud Tracker?
How Does the Tracker Categorize Revenue from Office 365 and Google Apps?
What Is Managed Cloud, and Is It Included in the Tracker?
Is Business Process-as-a-Service Revenue Included in the Tracker?
What Is the Difference Between the Tracker and Other Prominent IDC Worldwide Cloud Reports?
What Is the Link Between Software's License Type Segmentation and Cloud Services Revenue?