Which important concept for Enterprise Architecture Practitioners does it illustrate?

Consider the following chart:

Which important concept for Enterprise Architecture Practitioners does it illustrate?
A . Enterprise Architects must use Gantt charts to communicate with Stakeholders.
B . An Enterprise Architecture must be developed in phases with a limited fixed duration.
C . ADM phases must be run in a sequenced approach to produce the Architecture.
D . ADM phases must be run simultaneously until the relevant information has been produced.

View Answer

Answer: C

Explanation:

The chart shown is a Gantt chart, which is commonly used for project management to illustrate a project schedule. In the context of TOGAF (The Open Group Architecture Framework), which is a framework for enterprise architecture, this Gantt chart is demonstrating the sequenced approach to the Architecture Development Method (ADM). The ADM is the core process of TOGAF which provides a tested and repeatable process for developing architectures. The ADM is described as being iterative, over the whole process, between phases, and within phases. For each iteration of the ADM, a fresh decision must be taken about each of the parameters (scope, granularity, time period, and architecture assets).

The ADM consists of a number of phases that have to be followed in sequence:

– Preliminary Phase: Framework and principles

– Phase A: Architecture Vision

– Phase B: Business Architecture

– Phase C: Information Systems Architectures, including Data and Application Architectures

– Phase D: Technology Architecture

– Phase E: Opportunities and Solutions

– Phase F: Migration Planning

– Phase G: Implementation Governance

– Phase H: Architecture Change Management

– Requirements Management

Each phase is dependent on the outputs of the previous phase and the Requirements Management phase runs throughout. The Gantt chart clearly shows the dependency and sequence in which these phases occur, implying that a structured approach is followed to produce the enterprise architecture.

References:

– The TOGAF Standard, Version 9.2, a standard of The Open Group

– The TOGAF documentation available at https://publications.opengroup.org/standards/architecture and https://publications.opengroup.org/guides/architecture