Activity: Define Logical Perspective
The purpose of this activity is to define the Logical level architectural views of the system under study.
Work Breakdown Structure
Purpose

Definition of the various Logical level architectural views supports the analysis of the processes, system structures and other aspects, permitting optimizations to be discovered along with a better understanding of the business and the supporting information technologies. It also provides for the linkage of Logical (and Technical) level architectures and decisions directly back to the business level and the root drivers for the architecture.

Description

This workflow has the following goals:

  • Define a Logical Entity Model for the system;
  • Define a Logical Process Model for the system;
  • Define a Logical Locations Model for the system;
  • Define a Logical Roles Model for the system
  • Optionally update:
    • The Architecture Glossary.
Illustrations
Staffing

These activities are best carried out by a small team staffed by cross-functional team members with various technical and business experts brought in as required. Issues that are typically architecturally significant include data, process, locales and roles including the structure of these aspects. The team should also include members with domain experience (business experts and technical experts) who can identify key abstractions, and ideally logical level modelers. The team should also have experience with model organization and layering. From the provided inputs, the team will need to be able to synthesize the models.

Usage
Usage Guidance

Recommended as mandatory for architecture efforts aimed at redefining or improving the logical system model including data, processes, locations and roles aspects. This workflow is iterative, after each iteration is defined the architecture is assessed, followed by another pass if required. This work should be limited to two or three iterations. The purpose is to define the logical level architecture models, not to construct the system.

More Information
Workflow

Activity diagram: Define Logical Perspective Scan ADs Capture a Common Vocabulary Define Logical Entity Model Define Logical Process Model Define Logical Locations Model Define Logical Roles Model Assess the Architecture Define Architectural Decision

Activity detail diagram: Define Logical Perspective Enterprise Architect Scan ADs Capture a Common Vocabulary Define Architectural Decision Define Logical Entity Model Define Logical Process Model Define Logical Locations Model Define Logical Roles Model Assess the Architecture Enterprise Architect Architectural Decision Repository Scan ADs Architectural Decisions Summary Scan ADs Architecture Glossary Capture a Common Vocabulary Architecture Glossary Capture a Common Vocabulary Architectural Decision Repository Define Architectural Decision Architectural Decision Define Architectural Decision Business Entity Model Architectural Decisions Summary Architecture Glossary Model Repository Define Logical Entity Model Logical Entity Model Define Logical Entity Model Business Process Model Architectural Decisions Summary Model Repository Define Logical Process Model Logical Process Model Define Logical Process Model Business Locations Model Architectural Decisions Summary Model Repository Define Logical Locations Model Logical Locations Model Define Logical Locations Model Business Roles Model Architectural Decisions Summary Model Repository Define Logical Roles Model Logical Roles Model Define Logical Roles Model Architectural Decisions Summary Logical Perspective Assess the Architecture Architecture Review Record Assess the Architecture
Work Breakdown