List and explain 3 cloud computing barriers

IT organizations have identified four major barriers to large-scale adoption of cloud services. They are as follows

1. Security- IT organization are concerned with security in cloud computing environment, particularly data security.
2. Governance and Regulatory compliance - Companies are still trying to sort out the appropriate data governance model for cloud services and ensuring data privacy, quality of service ( QoS) namely availability, reliability and performance and SLAs
3. Integration and Interoperability -  Identifying and migrating appropriate applications to the cloud is made complicated by the interdependencies typically associated with business applications. Integration and interoperability issues include a lack of standard interfaces, or API's for integrating legacy applications with cloud services
4. Suitability of workload for cloud-  Not every application is made for or good candidate for cloud migration. Whether an application is suitable for cloud depends on a number of questions- including business function it provides and capacity characteristics it requires.