Relevance for the Workstreams

The Architecture Framework provides structure and guidance to the development of the Zero Outage design guidelines and best practices. The Zero Outage Map itself can be seen as a taxonomy, almost as a table of contents, which the workstreams can use to organize and position their work.

Graphic 17: Layered Service Model

At the core is the service model, which has two axis: one the evolutionary level of granularity, fuelled by the phases, second the structural complexity of the service stack defined by the layered model at the high level.

In its specifications, the platform workstream expands on the layered model, describing the complexity of two fundamental layers (infrastructure and systems), explains the concept of building blocks within, and the relationships between them. This will drive concrete design guidelines as to the proper construction of services from components and the management of dynamically changing such.

Note: While the Platform workstream is focusing on the lower two levels, it became obvious that there is currently a gap on the application layer, which needs to be closed by the association as a next step.

The security specifications are based on the ESARIS framework, which includes its own security focused taxonomy. In order to drive consistency and integration with the other workstreams, we will map these taxonomy elements to the Zero Outage Map, and as a second step in the next release harmonize the taxonomy articulation. That will provide the basis to then align with the layered model to integrate security and platform defined design guidelines.

Likewise, ITIL processes can be mapped to the Zero Outage Map taxonomy, the darker ones are the focus of the Zero Outage Process workstream. Again, this serves as a basis for alignment of potential design guidelines driven by the process perspective into one coherent specification. However, the specification of the Zero Outage map, e.g. the preventive health management capability, also inspires stepping back and asking provocative questions about the classical service operations processes, which primarily focus on the repair rather than the prevention of issues.

Graphic 18: Mapping of ITIL processes to Zero Outage Map

The structuring of the taxonomy around capabilities enables the People workstream to translate the capabilities and their value chain oriented integration into the required competencies for different roles and responsibilities.

As a precursor to the certification of people and organizations, the workstream focuses on leveraging the Zero Outage material to create a self-assessment for IT practitioners and IT leadership personnel, which includes a chapter focusing on architecture.

In the future, the workstream will also address the certification of service offerings and management solutions, which will be based upon actionable and measurable (normative) design principles along the value chain.