The Zachman framework

In 1987, John Zachman created a model to help documenting enterprise architectures. The Zachman model is a classic under the architecture models, and one of the first ones. A picture of the model is shown below.

2013-02/zachman-framework.jpg

Figure: Zachman framework

The model has six basic questions (columns) which must be answered by each of six viewpoints (rows) in order to describe an architecture. The basic questions are: What, How, Where, Who, When, and Why, and the viewpoints are:

  • Scope (as seen from a planner)
  • Business model (as seen from a business owner)
  • System model (as seen from a designer)
  • Technology model (as seen from an implementer)
  • Detailed Representation (as seen from a subcontractor)
  • Functional areas (as seen from the functioning system)

This leads to a matrix with 36 cells. When the cells are filled an overview of the complete enterprise architecture is created. In the cells the document is stated. For instance, the “What” of a Technology model (as seen from the implementer of the system) is a document describing the physical data model.

The big advantage of the model is that it is well known by most architects. It creates a common vocabulary amongst architects and it organizes architecture descriptions quite well.

A drawback of the model is that it can lead to creating a large number op documents, when everything is described in full detail. Furthermore, the model is primarily meant for architects; it is not very suited for end users, developers, or management. It is basically a framework for architects only.

Infrastructure architects could use the Zachman framework to create documents to describe the infrastructure. The relevant fields for infrastructure architecture are grayed in the picture below.

2013-02/relevant-fields-for-infrastructure-architecture.jpg

Figure: Relevant fields for infrastructure architecture

Zachman describes no method for filling in the framework. TOGAF has an Architecture Development Method (ADM) that can be used for this.

The Zachman model was created when John Zachman worked for IBM (he is retired now), and IBM has put the framework in the public domain. Therefore no license is needed for using the Zachman framework.

26 Jan 2015 Added: Here is an interesting interview with John Zachman about the origins of his model.


This entry was posted on Friday 24 May 2013

Earlier articles

Infrastructure as code

My Book

DevOps for infrastructure

Infrastructure as a Service (IaaS)

(Hyper) Converged Infrastructure

Object storage

Software Defined Networking (SDN) and Network Function Virtualization (NFV)

Software Defined Storage (SDS)

What's the point of using Docker containers?

Identity and Access Management

Using user profiles to determine infrastructure load

Public wireless networks

Supercomputer architecture

Desktop virtualization

Stakeholder management

x86 platform architecture

Midrange systems architecture

Mainframe Architecture

Software Defined Data Center - SDDC

The Virtualization Model

What are concurrent users?

Performance and availability monitoring in levels

UX/UI has no business rules

Technical debt: a time related issue

Solution shaping workshops

Architecture life cycle

Project managers and architects

Using ArchiMate for describing infrastructures

Kruchten’s 4+1 views for solution architecture

The SEI stack of solution architecture frameworks

TOGAF and infrastructure architecture

The Zachman framework

An introduction to architecture frameworks

How to handle a Distributed Denial of Service (DDoS) attack

Architecture Principles

Views and viewpoints explained

Stakeholders and their concerns

Skills of a solution architect architect

Solution architects versus enterprise architects

Definition of IT Architecture

What is Big Data?

How to make your IT "Greener"

What is Cloud computing and IaaS?

Purchasing of IT infrastructure technologies and services

IDS/IPS systems

IP Protocol (IPv4) classes and subnets

Infrastructure Architecture - Course materials

Introduction to Bring Your Own Device (BYOD)

IT Infrastructure Architecture model

Fire prevention in the datacenter

Where to build your datacenter

Availability - Fall-back, hot site, warm site

Reliabilty of infrastructure components

Human factors in availability of systems

Business Continuity Management (BCM) and Disaster Recovery Plan (DRP)

Performance - Design for use

Performance concepts - Load balancing

Performance concepts - Scaling

Performance concept - Caching

Perceived performance

Ethical hacking

Computer crime

Introduction to Cryptography

Introduction to Risk management

The history of UNIX and Linux

The history of Microsoft Windows

The history of Novell NetWare

The history of operating systems - MS-DOS

The history of Storage

The history of Networking

The first computers

History of servers

Tips for getting your ITAC certificate

Studying TOGAF

Is your data safe in the cloud?

Proof of concept

Who needs a consistent backup?

Measuring Enterprise Architecture Maturity

Human factors in security

Master Certified IT Architect

ITAC certification

Open group ITAC /Open CA Certification

Human factors in security

Google outage

SAS 70

TOGAF 9 - What's new?

DYA: Development without architecture

Spam is big business

Why IT projects fail

Power and cooling

Let system administrators participate in projects

The 7 Habits of Highly Effective People

Archimate

A meeting with John Zachman

ITAC - IT Architect certification

Personal Information is Personal Property

The Irresistible Forces Meet the Movable Objects

Hardeningscheck and hack testing for new servers

Knowledge management

Information Lifecycle Management - What is ILM

LEAP: The Redmond trip

LEAP: The last Dutch masterclasses

What do system administrators do?

Is software ever finished?

SCADA systems

LEAP - Halfway through the Dutch masterclasses

Securing data: The Castle versus the Tank

Non-functional requirements

LEAP - Microsoft Lead Enterprise Architect Program

Reasons for making backups

Log analysis - Use your logging information

Archivering data - more than backup

Patterns in IT architecture

Layers in IT security

High performance clusters and grids

Zachman architecture model

High Availability clusters

Monitoring by system administrators

What is VMS?

IT Architecture certifications

Storage Area Networks (SAN)

Documentation for system administrators

Rootkits

Presentations: PowerPoint sheets are not enough

99,999% availability

Linux certification: RHCE and LPI

IT Infrastructure model

Sjaak Laan


Recommended links

Ruth Malan
Gaudi site
Byelex
XR Magazine
Esther Barthel's site on virtualization


Feeds

 
XML: RSS Feed 
XML: Atom Feed 


Disclaimer

The postings on this site are my opinions and do not necessarily represent CGI’s strategies, views or opinions.

 

Copyright Sjaak Laan