Zoran's Blog: Cloud Discovery

Rough estimate for Discovery phase, this would include review all applications to produce:

Document current architecture and integrations to other applications, current costs
Document Cloud Options
Provide Cloud Cost Estimate for different Options +/-40% and this could be used as business case for future cloud migration phase

This would be include workshops with applications team to review the following- 3w duration:

Do we have existing documentation for the application including details below?
What does the applications do?
Who are the users? How many?
How critical is it to the business?
Will we need this application long term? If not when can we decommission?
What is applications architecture and what are different components?
List of all infrastructure components, databases, middleware
What integration with other applications is required?
How many environments do we have today?
Current HA/DR strategy? RTO/RPO?
What is data security classification for this application?
Do we own the source code?
Is this application cloud ready?
Does the vendor support cloud on AWS/Azure? What is their design alternatives and estimated costs?
Is there a SaaS solution available?
What are future plans for this application
Who supports this application
What are ongoing costs for this application?

What are any cloud licencing implication and costs?
What applications code changes would we need to make to make this application cloud ready?
Discussion with vendor to discuss cloud, licencing, security, high availability, other customers, estimated costs.
How long would it take to refactor application?
List of resource required and duration?
Do we have resources available to refactor and migrate application to cloud? When can we start/finish?
What are cloud skills within the applications teams?
How can we ensure performance is reasonable in cloud?
How can we ensure application is secure in the cloud?
How would we handle HA/DR in cloud?
Would any change external to organisation (external access) be required?
What testing would we need before we could successfully move application to cloud? (performance, integration, end to end regression testing, DR)
Do we have testing team available?
What are estimated testing cost?
Is applications team ready for devops? (You own it, you support it)
What are challenges?
Workshops to design cloud alternatives and produce estimated costs

Resources required for each application:

TOTAL 52 man-days per application.

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