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their application on top of it. Furthermore the more modularized offerings of the
Clouds on IaaS, PaaS and SaaS level provide a wider and more customized choice.
Another factor that positively drives the adoption of Cloud Computing is the support
also for other applications then mainly HPC based applications. For a higher adop-
tion of Cloud Computing by traditional companies, higher maturity of the tech-
nology in terms of security, reliability, automatic monitoring of individual SLAs as
well as established standards are necessary.
14.3 Practical Guidelines for Introducing Grid and Cloud Computing
in Companies
The institutionalization of Grid and Cloud Computing in companies, in particular
across several organizational domains, is a complex task. It results in substantial
changes how IT is used, managed and consumed (see also Murch 2004 and Gentzsch
2007). These changes do not only affect the IT department, but also the whole
company. A new mindset and attitude of employees towards IT, based on sharing
and acceptance of external IT resources is required. Such substantial changes cannot
be easily introduced in one step. A stepwise and evolutionary approach towards
companywide introduction of Grid and Cloud Computing is required
,
which
provides companies sufficient time to adjust and accommodate changes inferred by
each evolutionary step (Murch 2004).
Evolutionary changes are enabled with the modularity and service-orientation of
the basic technology. In chapter 3, a potential development path towards Grid and
Cloud Computing based on different scope of these technologies was sketched (see
also figure 14.2).
Fig. 14.2:
The evolutionary path of Grid Computing in Companies
