Planning for Cloud Integration: Pitfalls and Advantages - Deploying and Managing a Cloud Infrastructure - page 395

Calculating Requirements and Choosing a Cloud Service Model One method of calculating
requirements and fine-tuning is to stress-test applications to determine load parameters and
response times. Another method is to calculate the maximum number of users and processes
an application can handle simultaneously. You can choose from a variety of cloud service
models, and your choice will depend on multiple factors. All factors must be kept in focus to
better address an organization's needs.
Choosing a Cloud Model Companies need to evaluate their existing infrastructure to
ascertain the kind of cloud model (private, public, or hybrid) that best suits their require-
ments. The enterprise private cloud is best for large organizations with underutilized hard-
ware resources. The virtual private cloud best suits the needs of an organization that does
not deal with very sensitive data. The public cloud is best for companies that want to have
a fast and dynamic environment for their projects. The hybrid cloud should be chosen by
organizations that have traditional data centers or a private cloud setup for mature projects
but want a platform for executing new projects.
Organizational Culture and Business Issues Organizational culture is composed of
values, principles, visions, norms, working language, systems, symbols, beliefs, and habits
that have evolved with the organization. To chart-out a plan for adapting to changes in
culture, the current organizational culture should be recognized. Adapting to the cloud is
both a quantitative and qualitative change. To successfully incorporate the cloud within
an organization's culture, three important things need to be adopted. Leadership needs to
communicate and act strategically. Employees need to be encouraged to adapt and adjust.
Businesses need to rethink their tools and techniques. Planning for future functionality is
another critical aspect. Finding a convergence among business goals and daily work is criti-
cal for effective planning.