Section 4: Preliminary Phase - TOGAF

What is the purpose of the Preliminary Phase?

To create the Architecture Capability of an enterprise including

• Prep an activities to create the Arch Capabilities

• Customize the TOGAF framework

• Define the Architecture Principles

What are examples of activities to create an Architecture capability?

• determine what goals you want to achieve for EA

• Identify roles and skills needed

• Hire resources

• Establish teams

• define processes for EA

• Identify tools

What are the objectives of the Preliminary Phase

1. Determine the Architecture Capability desired by the org

2. Establish the Architecture Capability

How mature does the architecture capability need to be when being established in the preliminary phase?

Only build up the capability to the level of maturity that the org needs —> it can be enhanced later

True or False: the Architecture Capability you initially establish is what you need to live with for the future

False - you an enhance the capability maturity level at later times, as the org needs it

How do you determine the Architecture Capability that is needed by the org?

• Assess the environment where the capability will sit

• Identify the stakeholders - who and what will be affected by the EA

• Identify the frameworks you want to use

• Establish a Capability Maturity target

What are some key factors to establish an Architecture Capability?

• Define and establish the Org Model for the EA

• Define and establish the process and resources for Architecture Governance

• Select and implement tools

• Define the Architecture Principles

What phase do you develop a high-level aspirational vision of the capabilities and business value as an objective?

Phase A: Architecture Vision

Which type of principle informs and supports how an org sets about fulfilling its mission?

Enterprise Principle

What does an “Architecture Principle” do?

Guides the development and maintenance of the Enterprise Architecture

True or False: An architecture principle forms the basis for making architecture decisions

True

What should Architecture Principles relate back to?

• business objectives

• key architecture drivers

Who develops the Architecture Principles?

Enterprise Architecturs in conjunction with key stakeholsders —> then approved by the Architecture Board

what defines the underlying general rules and guidelines for the use of resources and assets?

Architecture Principles

True or False: Architecture Principles should be often updated and amended

False - Architecture Principles are intended to be enduring and rarely amended

How are Architecture Principles altered or removed?

Through an amendment process

What are key aspects of an Architecture Principle?

• there should be few of them

• should be future oriented

• endorsed and championed by senior management

What is the hierarchy for Enterprise Principles?

1. Enterprise Principles

2. Segment Principles

3. Architecture Principles

Can principles be established at different levels?

Yes, they can be established within different domains and at different levels

What are the qualities of an Enterprise Principle?

• Provide basis for decision-making for an enterprise

• Inform and support how the org goes about fulfilling its mission

• A key element in Architecture Governance strategy

• Can have subsidary principles within a bus. or org. unit

What type of principle can have subsidary principles within a business or organisational unit?

Enterprise Principle

What type of principle governs the architecture process?

Architecture principle

How many components are in an Architecture Principle structure?

4

• name

• statement

• rationale

• implications

what are the 4 components of an Architecture Principle structure?

• Name

• statement

• rationale

• implication

Which component of the Architecture Principle structure communicates succinctly and unambiguously the fundamental rule?

the Statement

Which component of the Architecture Principle Structure represents the essence of the principle?

The Name

What is an important factor in the Name of an Architecture Principle?

It should be easy to remember

Which part of the Architecture Principle Structure describes the relationship to other principles?

The Rationale

This is especially important where tradeoffs will be required

Which part of the Arch. Principle structure ive guidane toward a balanced and consistent interpretation?

Rationale

True or Fale: the Rationale component of the Arch Principle structure highlighs the business benefits of adhering to the business principle in business terms?

True

Which part of the Arch Principle structure highlights the requirements for carrying ou the principle in terms of resources, costs, and activities?

Implications component

Which component of the Arch Princinple Structure answers the question “how does this affect me?”

The Implications

Where are the impact of the business and consequences of adopting the principle stated

The Implications section of the Architecture Princinples structure

What are the 5 characteristics that distinguish a good set of Architecture principles?

• Complete

• Consistent

• Stable

• Understandable

• Robust

Which phases of the ADM are architecture principles used?

Preliminary Phase

A: Architecture Vision

B: Business Vision

C: Information Systems Vision

D, Technology Architecture

Which phase(s) of the ADM review and validation Principles and ensure alignment between the Target Architecture and Architecture Principles?

B. Business Architecture

C. Information Systems Architecture

D. Technology Architecture

Which phase(s) of the ADM identify, define, establish, and establish Architecture Principles?

Preliminary Phase

Which phase of the ADM reviews, clarifies, elaborates and confirms existing principles - or generates new ones if necessary?

A. Architecture Vision

Which phase are Architecture Principles created?

Preliminary Phase