Application Architecture

Architecting software is …

Objectives for this talk

Metaphors can be helpful

If you have a chance, please see the comments in this deck for more details.

Application Architecture

Goals, Principles & Landscape

The Scope of Architecture

Applying a method

System

BusinessUser

Architecture Goals

Consider the impact on structure

Fundamental Principles

Separation of Concerns

Composition over Inheritance

Evolutionary Design

Reuse over Duplication

Encapsulation

Architectural Landscape

Users are No. 1Market MaturityFuture Trends

Agility

The Scope of Architecture

Architecture Frame

Architecture Styles

Application TypesQuality Attributes

Application Types

Mobile Client

Rich Client

Web Client

Remote Services

Rich Internet Client

Deployment

Architecture Styles

Structure

Communication

Multi-TierClient/Server

Object-orientedComponent-oriented

Message BusService-orientation

Quality Attributes

AvailabilityInteroperability

ScalabilityMaintainability Manageability

SecurityPerformance

Extensibility

Reliability

Testability

Architecture Frame

AuthenticationAuthorizationCommunicationCoupling & CohesionCaching & Data AccessException Mgmt.InstrumentationData Validation

Applying a Method

1: Identify objectives

2: Choose a key scenario3: Make some choices4: Test against hot spots

5: Build a candidate

Step 1: Identify Objectives

Goals

Consumers

Constraints

Step 2: Choose a Key Scenario Business

CriticalBroad Impact

High Impact

Step 3: App Overview

Choose App Type

Choose Arch Styles

Choose Technologies

Deployment Scenario

Step 4: Test Against Hot Spots

Architecture FrameQuality Attributes

Step 5: Build a Candidate

… and then go pick another scenario

In Summary

Goals, Principles & Landscape

The Scope of Architecture

Applying a method

Your Call to Action

http://apparchguide.codeplex.com

Appendix

The Architecture Meta Frame

The Agile Architecture Method

The Architecture Meta Frame

The Agile Architecture Method