IVI Framework Viewer

Representative POMs are described for Containers at each level of maturity.

2Basic

• Practices

  • Start to split the core systems into modules to give a better structure for development, build, and deployment.
  • Use an API-managed approach to describe internal dependencies.

  Outcomes

  • The core systems are modularized and use APIs to communicate between modules.
  • This provides the basis for the next level of abstraction and modularization.

  Metric

  # of core systems that are modularized and use APIs.

3Intermediate

• Practice

  Use abstraction and other techniques to identify and break out modules into components that are self-contained and that can be separately deployed.

  Outcome

  Systems are further abstracted as the high-level system modules are divided into self-contained components that are separately deployed.

  Metric

  % of system modules that are divided into self-contained components.

4Advanced

• Practice

  Split the entire system into self-contained components, and adopt a strict API-based approach to inter-communication so that each component can be deployed and released individually.

  Outcomes

  • Each system component can be deployed and released separately.
  • All components, interactions, and interfaces are fully understood and documented.

  Metric

  % of the system that is deployed as individual components/containers.

5Optimized

• Practice

  Reduce the shared infrastructure by treating infrastructure as code and bind it to the application components.

  Outcomes

  • The system is totally reproducible from source control, from the O/S all the way up to the applications layer.
  • This enables the reduction of complexity and cost in other tools and techniques (for example, in disaster recovery) that serves to ensure that the production environment is reproducible.
  • Instead of having a separate process, disaster recovery is simply done by pushing out the last release from the pipeline like any other release.
  • This together with virtualization gives extreme flexibility in setting up test and production environments with minimum manual effort.

  Metrics

  • % cost savings due to containerization.
  • % of the data centre that is managed and provisioned using infrastructure as code/machine-readable definition files.