Making the Case for SOA - ICEAA: International Cost ... · Making the Case for SOA Presented at the...

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Arlene F MinkiewiczChief Scientist17000 Commerce ParkwayMt. Laurel, NJ [email protected]

Making the Case for SOA

Presented at the 2009 ISPA/SCEA Joint Annual Conference and Training Workshop - www.iceaaonline.com


Agenda

Service Oriented Architecture (SOA) Research Project Overview

Introduction to SOA

SOA Research Findings

Cost / Value Analysis for SOA Projects

Status and Steps Forward



SOA Research Overview

Research Project focused on affordability and process issues associated with SOA – working with Army CERDEC

Study SOA projects with focus on cost and value drivers

Identify where existing cost estimating technologies work for SOA

Develop methodology for extending existing technologies where necessary

Develop methodology for assessing value and performing business case analysis for SOA projects



Introduction to SOA

SOA uses networking capabilities to integrate applications in a way that is independent of:

– Architecture

– Programming language

– Development platform

– Vendor

Service Orientation can be thought of as the next generation of object orientation

– New degree of abstraction

– More sophisticated tools available to deploy



Service Orientation from the Software Perspective

Division Maintenance Status Portal



Division Maintenance Status Portal

Distributed Data SourcesLive Data

SOAF-A Components

PBUSE*Property Book

SAMS-E*Maintenance

Blue Force Tracker*Location Data

Local Data SourcesHRC

MOS Data

MQSeriesMQSeries

LOGSAParts Data

XVIII ABC*Task Org Data

Note: * Denotes Surrogate Data

Presentation Layer

User

Distributed Data SourcesDistributed Data SourcesLive Data

SOAF-A Components

SOAF-A Components

PBUSE*Property Book

PBUSE*Property Book

SAMS-E*Maintenance

SAMS-E*Maintenance



Local Data SourcesLocal Data SourcesHRC

MOS Data

MQSeriesMQSeries

LOGSAParts Data

LOGSAParts Data



Note: * Denotes Surrogate Data

Presentation Layer

UserUser



Why SOA? The Value Proposition

Value to the business– Agility

– Visibility of business processes

– Business/IT alignments

– Better, faster decision making

Value to IT– Reduced redundancy

– Development efficiency increase (as services are reused)

– Loose coupling reduce impact of changed processes



SOA – a more Technical Perspective

Infrastructure provides services multiple apps need

Business services implement rules specific to business or organization

Business processes are composed through orchestration layer



SOA Research Findings – where are Costs Generated?

Three levels of SOA Maturity studied– Emerging

– Managed

– Optimized

Five distinct areas are being studied– Deploying infrastructure prototype

– Deploying instances of infrastructure (‘production’)

– Developing Services

– Migrating legacy capabilities to Services

– Application Composition



SOA Research Findings – Maturity and project type(s)Emerging SOA - Cost Impacts vs Traditional SDLC Project

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Optimized SOA - Cost Impacts vs Traditional SDLC Projects

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SOA Research Findings – Enterprise Vs Project Level Cost

Emerging Projects– Each a new adventure– IT Staff is learning about SOA technologies– Driven by a few SOA literate individuals

Managed Projects– Organizational Commitment– SPA Stakeholder board– More decisions made at an enterprise level

Optimized Projects– SOA Entrenched– SOA Center of Excellence – Virtually all planning, management

and decisions at enterprise level

Enterprise Level Costs by Activity and Maturity Level vs Traditional SDLC Costs

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EmergingManaged Optimized



SOA Research Findings - Organizational Influences

Organizational Cost Drivers

– At all maturity levels

• Number of stakeholders

• Amount and granularity of data

– When SOA is emerging and managed (sometimes)

• Existing governance policy

• Extent of existing Enterprise Architecture

• Clearly defined ownership

• Organizational agility

• Organizational commitment



SOA Research Findings - Infrastructure

Prototype– Only relevant for emerging SOA– R&D Effort– Evaluation, Selection, Tailoring– Significant drivers:

• Skill set of staff, Existence of Enterprise Architecture

Production– Deploying instances of stack for scalability, redundancy, etc.– No two completely alike but learning assumed– Drivers include:

• Degree of invention

• Legacy technology

• Communication among deployment teams

Infrastructure Prototype Costs by Activity and Maturity Level vs Traditional SDLC

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Traditional SDLC Emerging Managed Optimized

Infrastructure Production Costs by Activity and Maturity Level vs Traditional SDLC

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SOA Research Findings – Service Development

Service Development– ‘Design for Reuse’ on steroids

– Emphasis on requirements

– Drivers at all levels of maturity:

• Amount of data

• Degrees of data granularity

– Drivers in early stages

• Skill set of developers

• Familiarity with SOA

• Business process understanding

• Understanding of business processes

– Drivers as maturity is reached

• Extent of service inventory

Service Development Costs by Activity and Maturity Level vs Traditional SDLC

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SOA Research Findings – Legacy Migration

Software Reuse Project

Not relevant for optimized SOA

Significant Drivers– Technology Maturity of legacy

application

– Type of migration/migration requirements

– Data issues

– Skills of developer

• Familiarity with SOA and SOA Migrations

• Familiarity with Legacy Application

• Familiarity with SOA Infrastructure Technology

Legacy Migration Costs by Activity and Maturity Level vs Traditional SDLC

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SOA Research Findings – Application Composition

Application Composition– Service identification – requirements and evaluation type

activities– Integration and deployment activity– As SOA emerges – infrastructure changes likely – Significant drivers

• Data issues

• Skill and Knowledge of IT Staff

• Number of services availableApplication Composition Costs by Activity and Maturity Level

vs Traditional SDLC

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SOA Business Case Analysis Framework

Modified Business Value Index– Uses Intel’s Business Value Index as base

Includes elements of OMB e300 to include Performance Reference Model

– Measurement Areas: General Areas of Interest

– Measurement Categories: Performance Criteria

– Measurement Indicators: Specific methods of measure

Includes elements of Gartner’s ITFM concepts



Recommended SOA Business Case Analysis Framework

Measurement Areas:– IT Performance

– Business Value

– Cost

Cost

Business Value

IT P

erfo

rman

ce



Value - Measures of Performance / Measures of Effectiveness

IT PerformanceService Re-Use

Productivity

Business ValueBusiness Alignment

Agility

Adaptability

Flexibility

Delivery

Cost

Cost Avoidance

Retrospective ROI



Status and steps forward

Data collection on SOA cost drivers on going within and outside of the Army

Identification of cost drivers for SOA at various levels of maturity

Developing methodology to estimate SOA costs using TruePlanning for Products

Alignment of Measures of Effectiveness and Measures of Performance with KPPs to support Analysis of Alternatives for SOA projects

Next steps will incorporate the methodologies provided in phase I into commercial solution (prototype) customized specifically forArmy requirements focused on Analysis of Alternatives



Questions

Arlene F MinkiewiczChief Scientist17000 Commerce ParkwayMt. Laurel, NJ [email protected]


Making the Case for SOA - ICEAA: International Cost ... · Making the Case for SOA Presented at the...

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