Cloud to Cloud Application Integration

A lot of applications have integration possibilities, so do cloud applications. The question I got from a customer is whether to have a point-to-point integration with Cloud applications or to go through their ESB solution. This blog describes some considerations.

The customer has a HRM application in which job vacancies are managed. Furthermore that system also handles the full applicant process flow. They also have another cloud application that handles the job vacancies. This application posts the jobs to social sites and other channels to promote the vacancies. Furthermore this application has some intelligence for job seekers to advice some new vacancies based on previous visits or profiles. The job vacancies need to be sent to the Vacancies application and applicant information needs to be sent to the HRM application, when a job seeker actually applies for a job. Furthermore status information about the job application is also sent back. This flow of information is depicted in the next figure.

Integration options
Several options are discussed to integrate these cloud applications.
The two applications have an out-of-the-box integration possibility, so integrating this way is easy.

However also consider:
  •          Dependent on the cloud suppliers to integrate on infra level
  •          Monitoring is not conform the guidelines of your company. Maybe there is no monitoring at all.
  •          Exception handling is not conform the guidelines of your company, so what happens when something goes wrong on integration level
  •          What happens when one cloud application is migrating to another version? Maybe the other application must migrate as well, and maybe this is not what you want.
  •          Security: what are the security possibilities of the applications and the integrations? Is this conform company standards? Is this conform regulation requirements?

This option is viable if it is seen as one application function, in which you can see it as 2 modules within the same application. Furthermore integration is taken care of by the two cloud suppliers.
Enterprise Service Bus
In case more control is needed for the integration and job vacancies are also interesting for other applications to integrate (job boards), the ESB solution can also be an option. A lot of companies are still using ESB i.s.o. Microservices architecture. They still have a lot of old applications which need adapters to decouple the systems.

Advantages of this solution:
  •          Use of common business entity on the ESB to decouple applications
  •          Monitoring conforming company guidelines
  •          Exception handling conforming company guidelines
  •          Reuse of services possible
  •          Reuse of events for other interested applications
  •          Company can decide which parts of the application APIs are used

Note that the ESB can be cloud and on-premise.
  •          Extra layer
  •          Company must setup the infrastructure connections themselves

Depending on your requirements, guidelines and timing constraints, there are always several options for integrating cloud applications. Considerations:
  •            Flexibility information delivery (decoupling)
  •            Own connection infrastructure control
  •            Monitoring requirements
  •            Exception handling requirements
  •            Security and compliance requirements
  •            Upgrading cycles of cloud applications

Feedback is always welcome!


  1. I believe there are many more pleasurable opportunities ahead for individuals that looked at your site.

    aws training in chennai

    advanced aws training in chennai

  2. Cloud to Cloud Application Integration is explained with examples and pictures making it more understandable.

  3. Thank your valuable content.we are very thankful to you.one of the recommended blog.which is very useful to new learners and professionals.content is very useful for hadoop learners

    Best Spring Online Training Institute
    Best Devops Online Training Institute
    Best Datascience Online Training Institute
    Best Oracle Online Training Institute

  4. Thanks For Sharing The Information The Information Shared Is Very Valuable Please Keep Updating Us Time Just Went On Reading The article Python Online Course Hadoop Online Course Aws Online Course Data Science Online Course

  5. Thank you for sharing the article. The data that you provided in the blog is informative and effective.
    Best Devops Training Institute