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WHITEPAPER
Moving to the cloud
Why API-led architectures matter

Contents
Introduction
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Key uses cases for integration in the cloud
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Migrating existing applications and data from
on-premises to cloud infrastructure
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Integrating SaaS applications with on-premises
applications and data
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Connecting cloud-native applications across
on-premises and cloud environments
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Customer stories
Federal Communications Commission (FCC)
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HSBC
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MuleSoft: Your partner in the cloud
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Conclusion
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About MuleSoft
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Introduction
Across industries, more and more companies are moving
to the cloud. According to one study , approximately 93%
of businesses are using cloud technologies. But what does
“moving to the cloud” mean? For the purposes of this paper,
the term refers to the adoption of SaaS technologies (Concur,
Dropbox, etc.) and/or public infrastructure (Amazon Web
Services, Azure, etc.). It can also refer to the development of
new cloud-native applications.
Moving to the cloud provides organizations a number of
benefits:
Improves operational efficiency and reduces costs:
According to McKinsey , moving to the cloud can reduce IT
overhead costs by as much as 30-40% by eliminating the
overprovisioning of on-premise infrastructure and reducing
application downtime.
Increases agility: IT teams can quickly develop applications
by eliminating the need to maintain and configure on-premise
infrastructure.
Accelerates innovation: Modern cloud platforms, such
as Amazon and Google, provide rich big data and machine
learning capabilities that allow organizations to drive more
value with their data.
Today, integration is a strategic component of every digital
transformation and initiative that involves moving to the cloud.
When moving to the cloud, organizations focus on a set of key
integration uses cases, including:
1. Integrating SaaS applications with on-premises data and
applications.
2. Migrating existing data and applications from on-premises
to cloud infrastructure.

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3. Connecting cloud-native applications across on-premises
and cloud environments.
In the process of implementing the above uses cases,
organizations rely on three approaches to moving to the cloud.
Traditional approaches involve migrating applications and data
as-is by “lifting and shifting” applications and data sources,
or connecting on-premises and cloud systems by building
ground-to-cloud point-to-point interfaces. Additionally, some
organizations find the aforementioned approaches challenging
and, instead, resort to starting from scratch by re-building
applications to make them more cloud-friendly.
These approaches, however, can lead to various challenges
related to scale, efficiency, and application uptime. In this
whitepaper, we will discuss these three integration use cases,
with a focus on why traditional approaches do not suffice.