Article - Comparison of top 4 EA Methodologies (Zonder Zachman) (Sessions)

Question 1

What is an architect?

Answer 1

One whose responsibility is the design of an architecture and the creation of an architectural description.

Question 2

What is an architectural artifact?

Answer 2

A specific document, report, analysis, model that contributes to an architectural description.

Question 3

What is an architectural description?

Answer 3

A collection of products (artifacts) to document an architecture

Question 4

What is an architectural framework?

Answer 4

A skeletal structure defining suggested architectural artifacts, describes how those artifacts are related to each other and provides generic definitions for what those artifacts might look like.

Question 5

What is an Architectural methodology?

Answer 5

A generic term describing any structured approach to solving some or all the problems related to architecture.

Question 6

Wat is an Architectural taxonomy?

Answer 6

A methodology for organizing and categorizing architectural artifacts.

Question 7

What is an Enterprise Architecture?

Answer 7

An architecture in which the system in question is the whole enterprise, especially the business processes, technologies, and IF of the enterprise.

Question 8

What is included in EA according to TOGAF?

Answer 8

1. Business architecture
2. Application Architecture
3. Data architecture
4. Technical Architecture

Question 9

What is the most important part of TOGAF?

Answer 9

Not the framework, but the architecture development method (ADM). This is a process on how to build your architecture.

(Other than that TOGAF is a framework)

Question 10

How does TOGAF see the world of EA and what are the 4 architectures?

Answer 10

As a continuum (Enterprise Continuum) of architectures, ranging from generic to specific.

1. Foundation Architectures (Principles that can be used by any organization)
2. Common System Architectures (Principles that you expect at many organizations)
3. Industry Architectures (Principles at many companies in the same industry)
4. Organizational Architectures (Principles specific to a company)

Question 11

What are the 9 stages in the ADM of TOGAF?

Answer 11

Phase: Preliminary - Framework and principles
Phase A - Architecture vision
Phase B - Business Architecture
Phase C - Information System Architecture
Phase D - Technology Architecture
Phase E - Opportunities and Solutions
Phase F - Migration Planning
Phase G - Implementation Governance
Phase H - Architecture Change Management

Question 12

What are some final thoughts on TOGAF?

Answer 12

• Highly adaptable
• Provides merely guidelines
• Phases are also very flexible, can be adapted as appropriate and may be skipped.

Question 13

Which EA methodology is the most complete and why?

Answer 13

The Federal Enterprise Architecture (FEA).

It has a taxonomy like Zachman and a process like TOGAF.

It includes:

• Segment model (How EA should be viewed)
• A set of reference models
• A process for creating an EA
• A transitional process for migrating
• A taxonomy for cataloging assets
• An approach for measuring the success of using the EA to drive business value

Question 14

Out of which two segments (major business lines) does a (political) enterprise exist according to the FEA?

Answer 14

• Core Mission Segments

- Business Services Segments

Question 15

Which 5 reference model are used in FEA?

Answer 15

1. Business Reference Model (BRM) (business view)
2. Components Reference Model (CRM) (IT view of systems supporting business)
3. Technical Reference Model (TRM) - Technologies and standards)
4. Data Reference Model (DRM) - Standards for data
5. Performance Reference Model (PRM) - standard for value of EA

Question 16

How does the architecture process look in FEA?

Answer 16

Step 1. Architectural analysis (simple vision for segments)

Step 2. Architectural Definition (developing the EA)

Step 3. Investment and funding strategy

Step 4. Program management plan and execution of projects

Question 17

In what 3 categories can you measure organizational success in using EA according to the FEA?

Answer 17

1. Architectural completion (Maturity level)
2. Architectural use (effective use in decision making)
3. Architectural results (benefits results)

Color coding: Green, yellow, red

Question 18

What is the approach of Gartner?

Answer 18

• Gartner is not a methodology, process or methodology.
• EA is a practice, an ongoing process of creating, maintaining and leveraging EA.
• Bringing together business owners, information specialists and technology implementers to unify them behind a common vision.
• EA is about strategy, not engineering

Question 19

What 2 things are most important to Gartner?

Answer 19

1. Where an organization is going (this is the starting point)
2. How it will get there.