Requirements: defining what is needed from cloud services

Level	Requirements
Start	Explore/engage: define requirements Offer: communicate requirements to one or more CSPs
New to cloud	Explore: define high-level requirements Engage: decompose requirements
Cloud experienced	Explore: define detailed requirements Engage: validate and refine

In-house solutions. IT team:

• Understand business requirements
• Deliver solution
• Adopt specific architecture

Cloud requirements:

• Mapping business needs to cloud functionality
• Teams need:
  • Cloud competencies
  • Awareness of cloud solution

Use request for information

Seek help from consultants

Service requirement categories:

Utility	Warranty	Experience
What the service does ? Fit for purpose Suitable for: SaaS IaaS PaaS	How service performs ? Fit for use Meets needs Addresses: Availability Capacity Security Continuity	Service interactions Affected by utility and warranty Service effectiveness affects experience

 

Experience is subjective:

• Existing level of experience vs new cloud services can offer
• More benefits from cloud services with same or lower cost = same or better experience

Experience assessment:

• Reports
• Focus groups

Assess services

Keep up with demand ?

Communicate early and often

Allow for change

Include suppliers

CSP submits proposals

Redefine or eliminate requirements if:

• Can´t be met
• Too expensive

CSP can suggest changes

Go back to ITIL 4 Acquiring Managing Cloud Services Certification Course: Engage to finish this chapter or to the main page ITIL 4 Acquiring Managing Cloud Services Certification Course.