The Building Blocks-Components of EA part 1- Information and Strategy

1. Zachman Framework

Presented as matrix of Rows and Columns representing domain of interest and level of abstraction.

2. Framework-Domain of Interest

Columns

-Data/ Information

-Function/ Process

-Network

-People

-Time

-Motivation/ Strategy

Framework Rules

Rule 1:  Columns have no order

Rule 2:  Each column has a simple, basic model

Rule 3:  Basic model of each column is unique

Rule 4:  Each row represents a distinct view

Rule 5:  Each cell is unique

Rule 6:  Combining the cells in one row forms a complete description from that view

3. Framework - Level of Abstraction

Business Managers - Strategic

Row 1 - Contextual: External Requirements and Drivers; Business Function Modeling

Row 2 - Conceptual: Business Process Models

Designer & Developers - Operational

Row 3 - Logical: Logical Models; Requirements Definition

Row 4 - Physical: Physical design; Solution Definition and Development

Row 5 - As Built: Constructed Enterprise; Deployment

Row 6 - Functioning Enterprise: Operating Environment; Functioning Enterprise Evaluatoin

4. Zachman Framework

Row 1 - Scope/Planner's View

- Motivation/why

Business goals, objectives and performance (External requirements and drivers)

Measures related to each function (Business Function Modeling)

- Function/How

High-level business functions

- Data/ What

High-level data classes related to each function

- People/ Who

Stakeholders related to each function

- Network/ Where

VA locations related to each function

- Time/ When

Cycles and events related to each function

Row 2 - Enterprise Model/ Owner's View -Business Process Models; Business Function Allocation;

- Motivation/ Why 
Elimination of Function Overlap and Ambiguity

Policies, procedures and standards for each

process

- Function/ How

Business processes

- Data/ What

Business data

- People/ Who

Roles and responsibilities in each process

- Network/ Where

Locations related to each process

- Time/ When

Events for each process and sequencing of integration and process improvements

Row 3 - System Model/ Designer's View -
Logical Models; Project Management; Requirements Definition

- Motivation/ Why

VA policies, standards and procedures

associated with a business rule model

- Function/ How

Logical representation of information systems and their relationships

- Data/ What

Logical data models of data and
data relationships underlying VA information

- People/ Who

Logical representation of access privileges constrained by roles and responsibilities

- Network/ Where

Logical representation of the distributed system architecture for VA information

- Time/ When

Logical events and their triggered responses constrained by business events and responses

Row 4 - Technology Model/ Builders' View-
Physical Models, Technology Management, Solutions Definition and
- Motivation/ Why     Development

Business rules constrained by information systems standards

- Function/ How

Specifications of applications that operate on particular technology platforms

- Data/ What

Database management system (DBMS) type requirements constrained by logical data models

- People/ Who

Specification of access privileges to specific platforms and technologies

- Network/ Where

Specification of network devices and their relationships within physical boundaries

- Time/ When

Specification of triggers to respond to system events on specific platforms and technologies

Row 5 - As Built/ Integrator's View-
As Built; Configuration Management; Deployment

- Motivation/ Why

Business rules constrained by specific technology standards

- Function/ How

Programs coded to operate on specific technology platforms

- Data/ What

Data definitions constrained by physical data models

- People/ Who

Access privileges coded to control access to specific platforms and technologies

- Network/ Where

Network devices configured to conform to node specifications

- Time/ When

Timing definitions coded to sequence activities on specific platforms and technologies

Row 6 - Functioning Enterprise/ User's View-
functioning Enterprise; Operations Management; Continuous

- Motivation/ Why
Improvement; Evaluation

Operating characteristics of specific technologies constrained by standards

- Function/ How

Functioning computer instructions

- Data/ What

Data values stored in actual database

- People/ Who

Personnel and key stakeholders working within their roles and responsibilities

- Network/ Where

Sending and receiving massages

- Time/ When

Timing definitions operating to sequence activities

5. Summary

The Zachman Framework

- Is a commonly encountered enterprise architecture tool

- Provide the repository of enterprise artefacts that describe the business

- Is structured as a two dimensional hierarchy high contextual to functional levels of abstraction