4
1. Infrastructure cost is charge incurred from hosting an application
workload on a cloud service provider, in this case, Amazon Web
Services (AWS)
The detailed section further in this paper emphasizes two Deloitte
client examples:
a. Comparing AWS Lambda functions vs Amazon EC2 instances for a
transportation client
b. Comparing Amazon Kinesis vs Hadoop Clusters on EC2 for a global
banking client
2. Development cost is the upfront charge of building and developing a
new application on a cloud-based service
The detailed section in this paper highlights Deloitte's industry experience
estimating development time and the cost of an average development
resource
3. Maintenance cost is the day-to-day operations expense associated
with running and maintaining an application on an EC2 instance vs.
serverless architecture
This section of the paper shows typical Deloitte benchmarks for maintenance
costs across various components, including traditional security, patching,
service ticket, and testing teams
While there are organizational benefits of moving to serverless, such as
increased velocity to address business opportunities, better planning of
infrastructure capacity, etc., this paper focuses only on the cost elements
highlighted above.
