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Enterprise Technology Architecture
Monday, April 10, 2023
ETA at IR - GOVIS.ppt
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Inland Revenue Enterprise Technology Architecture
GOVIS May 2005
Enterprise Technology Architecture
Monday, April 10, 2023
ETA at IR - GOVIS.ppt
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Agenda Background ETA – What is it? ETA Challenges and Goals SOE – Standard Operating Environment Architecture Management Framework Lessons Learnt
Enterprise Technology Architecture
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Background
ETA Project was established in early 2003 and completed in September 2003.– Derived from IR’s Technology Strategy.
Based on TOGAF, with appropriate adjustments– To suit IR needs– Engaged IBM expertise to assist in establishing work
products, and enhance IR/Method.
Overall Enterprise Architecture established – 3-year horizon– Key capabilities of Enterprise Application Integration (EAI),
and Identity and Access Management System (IAMS), acquired and deployed.
Enterprise Technology Architecture
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ETA – What is it?
“A framework for making IT investment and design decisions in support of business objectives.” (IBM)
ETA Vision is to establish a technology environment which strives to:
– be responsive to the business.– maximise the use of information technology components.– ensure informed and consistent technology decision making.
ETA consists of the following:– Architecture Drivers which describe what the architecture must do to
support the business.– A set of IT Principles that define the underlying general rules to
deploy technology resources across the organisation.– Reference Architectures which provide a design of how logical
components can fit together for a particular technology.– Standard Operating Environment (SOE) specification which provides
product standards governing the use of hardware, software and application systems.
– Architecture Management Framework (AMF) – defining the processes, roles and responsibilities to manage and implement ETA.
Enterprise Technology Architecture
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StrategyStrategy
IT Infrastructure
• Network
• Sys Mangmt
• App Develop
Infr
astr
. Ap
plic
tn.
Bu
s. A
pp
licat
ion
IT Architecture
Bu
sin
ess
Pro
cess
es
Bu
sin
ess
Eve
nts
Info
rmat
ion
Mo
del
Ro
les
/ Lo
cati
on
s
Business Architecture
Business Strategy IT Strategy
Bu
sin
ess
Cap
abili
ties
Bu
sin
ess
Mo
del
Bu
sin
ess
Sce
nar
ios
Ind
ust
ry M
od
els
“Enterprise Architecture” (EA)Planning
Delivery “Programme Office” (PO)
Pro
ject
Solution Design Architecture
Pro
ject
Pro
ject
Pro
ject
Pro
ject
Pro
ject
Pro
ject
TOGAF
IR’s Enterprise Architecture needs to be aligned with its Business & IT
Strategies in order to put in place an effective ETA.
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ETA’s Architecture Framework is used as a starting point. The ETA focus, at this time, is on the Information Technology Architecture &
associated Governance.
Enterprise Architecture
Project Office
Corporate StrategyD
eliv
ery
Pla
nn
ing
Str
ateg
y
GovernanceGovernance
Business StrategyBusiness Strategy Information Technology StrategyInformation Technology Strategy
GovernanceGovernance
ProjectProject ProjectProject ProjectProject ProjectProject ProjectProject ProjectProject
Business ArchitectureBusiness Architecture Information Technology ArchitectureInformation Technology Architecture
Applications ArchitectureApplications Architecture
Technical ArchitectureTechnical Architecture
Data ArchitectureData Architecture
GovernanceGovernance
Co
ntr
ol
Co
ntr
ol
Tax AgentsTax Agents ConsumerConsumer
Hu
ma
n R
es
ou
rce
sH
um
an
Re
so
urc
es
Str
ate
gic
Op
era
tio
ns
Str
ate
gic
Op
era
tio
ns
Business ServicesBusiness Services
Finance and InvestmentsFinance and Investments
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Level 1 of the ETA Architecture Framework, requires a Conceptual Architecture Description for each layer, known as an “Architecture Domain”
The tools, methods and processes used in the development and maintenance of applications
Data MgtServicesData MgtServices
PlatformServicesPlatformServices
NetworkServicesNetworkServices
GovernanceGovernance
PresentationServices
PresentationServices
SoftwareServicesSoftwareServices
Management of data independent of the processes that create or use it, maintained indefinitely,and shared among many processes
The underlying hardware and software used to host applications and other services
The voice and data communications infrastructure for the distributed computing environment
The set of principles, guidelines and processes used to manage the IT portfolio and resources
A class of interface software that provides users with access to functions and data
Info
rmat
ion
Sec
uri
ty S
ervi
ces
Sys
tem
s an
d N
etw
ork
Man
agem
ent
Ser
vice
s
Software that creates uniform mechanisms for application integration across diverse network and platform technologiesIntegrationServices
IntegrationServices
BusinessApplication
Services
BusinessApplication
Services
A class of software that is used to create and maintain business data
BusinessIntelligence
Services
BusinessIntelligence
Services
A class of software that provides managers with tools to monitor and evaluate the
performance of the business
ProductivityServices
ProductivityServices
DataServices
DataServices
Applications that provide a variety of personal or team productivity operations
Structured and unstructured data created and maintained by business applications
- such as Integration Services
Enterprise Technology Architecture
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IBM 6611
Regional Con'tor (1) Devt Env (1)
Corp Srv + Syst Mgmt (1)
IBM Netfinity 3500, Display, Quality Printer, ProPrinter
IBM PC 300, Touch Display, 4717-mag rdr
To FinancialInstitution
Data Server (1)
Cust W/S (12)
OS/2 WarpDB2/2 ClientIconAuthor rt
Front-end Proc
OS/2 WarpPCOMM, NTS/2LAN ServerDB2/2 serverDDCS/2RXR/2
OS/2 2.1 CICS/2PCOMM, NTS/2 DB2/2 ClientIconAuthor rt
LocalArea
Network
NOTE: Models andDASD sizes are to be confirmed later
MVS/ESADB/2CICS/ESAVTAM
LocalArea
Network
Partitioned IBM S/390 (1)
E1 to E10
13, 14, D1 -D5 (copies),D6 & D7
IBM Netfinity 3500, Display, Quality Printer, ProPrinter
N/w, Ptr & Lan Mgt server (1)
OS/2 Warp,PCOMM, NTS/2LAN ServerDB2/2 serverDDCS/2RXR/2
E15 - E17,D8, I1 to I12
IBM PC 300, Display, 4717-3 mag rdr/wrtr
Clerk W/S (5)
E1 to E12
Note: The two store servers provide mutual take-over services, and therefore are rsponsible for backup copies of a[ppropriate process and data groups
Store (400)
Regional HQ (10)
HQ Con'tor (1)
Basic IBM PC 300
Auth Switch (1)
E15-E17, 18, 19D1 -D5 (masters)D9 - D11, I15-I19
Central HQ (1)
IBM 3745
IBM 6611Reference Architecture (EAI)S
yste
ms
and
Net
wor
k S
ervi
ces
Sys
tem
s an
d N
etw
ork
Ser
vice
s
Info
rmat
ion
Sec
urity
Ser
vice
s In
form
atio
n S
ecur
ity S
ervi
ces
Integration Services
Data Management Services
Platform Services
Network Services
GovernanceGovernance
Business ArchitectureBusiness Architecture
Software Engineering Services
Productivity Services
Presentation Services
Business ApplicationsBusiness Applications Business IntelligenceBusiness Intelligence
Component Model
Operational Model
Data ServicesData Services
Reference Architecture (such as one for EAI) requires components from several “Architecture Domains” of the ETA Architecture Framework (including
components from Integration Services)
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Architecture Management Framework
Business Architecture
ENTEPRISE TECHNICAL ARCHITECTURE (ETA) METHODOLOGY
Business
Strategy
IT Strategy Standard Operating Environment
Standard Operating Environment
Evaluation & Selection
Framework
Evaluation & Selection
Framework
Technology Model – Architecture Domains
Technology Model – Architecture Domains
Transition Plan
Transition Plan
Current Technology Environment Assessment
Current Technology Environment Assessment
Gap Assessment
Gap AssessmentETA Vision
ETA Vision
ETA Drivers
ETA Drivers
ETA Principles
ETA Principles
Functional Requirements
Functional Requirements
Component Model
Component Model
Non –Functional Requirements
Non –Functional Requirements
Operational Model
Operational Model
Reference Architecture
ScenariosScenarios
ProjectsProjects
Context DiagramContext Diagram
Component Model
Component Model
Non –Functional Requirements
Non –Functional Requirements
Class/Type Diagram
Class/Type Diagram
Solutions Outline
Scenarios & Use Cases
Scenarios & Use Cases
The Enterprise Architecture (EA) Development Methodology followed by the ETA project, best describes the way in which the Project Deliverables were
produced.
Enterprise Technology Architecture
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Common Corporate Components
Unique Business
Unit Infrastructure
Unique Business
Unit Infrastructure
Unique Business
Unit Infrastructure
Shared Components
Infrastructure Project (eg. EAI)
ETA Focus
Building a Framework for Reuse
Enterprise Technology Architecture
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ETA Challenges and Goals
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ETA Challenges
Increasing speed to market – ability to quickly react to change.
Moving away from build to re-use to buy – embrace open industry standards.
Aligning business and IT – making informed business decisions.
Facilitating greater accessibility of IR services – diverse mix of channels that are highly available.
Lowering cost of ownership of IR systems – Systems consolidation, rationalisation and standardisation.
Enterprise Technology Architecture
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ETA Goals
Virtual Organisation – providing location independence for IR staff
Systems Consolidation – providing standardised and simplified IT infrastructure
Channel Independence – providing consistent user experience across multiple channels
High Availability – providing standards and techniques to deliver reliable and highly accessible customer services
Single Identity – providing consistent security treatment for internal users and external customers
Time Horizon – 3 years (05/06 to 07/08)
Enterprise Technology Architecture
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SOE – Standard Operating Environment
Platform
Enterprise Technology Architecture
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SOE Decision Criteria
Core Existing assets that we want to re-use (e.g. maintenance).
Emerging Existing and future Assets that are going to feature in our strategy going forward (e.g. new development).
Declining Existing assets that will not be invested in or re-used, and, are ultimately candidates for de-commissioning.
Special Case
Assets that are not Core or Emerging, but granted special dispensation (i.e. Apple Mac’s for publishing).
Each asset will be categorised with these decision criteria…
Enterprise Technology Architecture
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SOE Evaluation Process
Current Assessment
Analysis - Standards
• Base-lining• Categorisation (TOGAF)
• SOE decision criteria• Options Development• Options Analysis• Preferred Options
Analysis -Validation
Gap & Impact Assessment
• Market Capability / Alignment
• Determine extent of change• Identify actions:
• Consolidation• Rationalisation• De-commission• Simplification
IT Infrastructure
Initiatives
SOE
ArchitectureDrivers Overarching IT Principles
Market Trends, other
organisations
Enterprise Technology Architecture
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Future SOE Goals
Simplification Improved utilisation Reduced Cost of Ownership Minimised development effort of integrating new
technologies Simplified technology decision making
Enterprise Technology Architecture
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Platform tiers - diagram
Enterprise Technology Architecture
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Platform SOE Decisions
Greater impact at mid tier where there is high proliferation of platforms
Edge
User Interface Network Mid Enterprise Platform Intel - core
Sun - declining Intel - emerging Sun -declining
Intel - emerging Sun - core
Sun - core Unisys NX Clearpath - core
Operating System
MS Windows desktop -core Solaris - declining
Linux - emerging Solaris - declining
Linux -emerging Solaris -core Netware - declining Windows server 2000 -declining Windows server NT - declining
Solaris – core Unisys MCP-AS - core
Examples Desktop PCs IR-file SUN web server s
LARS, CHRIS Evolve-IT
Mainframe DataWarehouse
Enterprise Technology Architecture
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Architecture Management Framework
Enterprise Technology Architecture
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ETA Governance Model
ETA Governance Model has two objectives, namely:
– The effective ongoing development and maintenance of the ETA as a whole.
– The enforcement of architecture compliance within Inland Revenue.
Enterprise Technology Architecture
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Architecture Management Framework
Project Governance – PSCs supported by Project Office
Project Project Project
Corporate Governance - SMT
Business Strategy – The Way Forward
Technology Strategy
Technology Governance - ITGB
ETA Governance - ETA
Business Representation
PSG
Competency Centres
ETA
Enterprise Technical Architecture –Application, Data and Infrastructure
Solution Design Architects
Project Governance – PSCs supported by Project Office
Project Project Project
Corporate Governance - SMT
Business Strategy – The Way Forward
Technology Strategy
Technology Governance - ITGB
ETA Governance - ETA
Business Representation
PSG
Competency Centres
ETA
Enterprise Technical Architecture –Application, Data and Infrastructure
Solution Design Architects
Enterprise Technology Architecture
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ETA within the Architecture Management Framework
Projects
Directions, Strategies
The Way Forward and Technology Strategy
Alignment
Information Technology Governance Board
BUSINESS
-business direction-requirements-prioritisation
ETA
-technical direction-technology trends
- standards
IT STRATEGY
-technology strategic direction
DELIVERY
-design-dev/acquisition- implementation- maintenance
-support
Project support, funding, methodologies
Standards, models, SOE, Reference Architectures
Projects
Directions, Strategies
The Way Forward and Technology Strategy
Alignment
Information Technology Governance Board
BUSINESS
-business direction-requirements-prioritisation
ETA
-technical direction-technology trends
- standards
IT STRATEGY
-technology strategic direction
DELIVERY
-design-dev/acquisition- implementation- maintenance
-support
Project support, funding, methodologies
Standards, models, SOE, Reference Architectures
Projects
Directions, Strategies
The Way Forward and Technology Strategy
Alignment
Information Technology Governance Board
BUSINESS
-business direction-requirements-prioritisation
ETA
-technical direction-technology trends
- standards
IT STRATEGY
-technology strategic direction
DELIVERY
-design-dev/acquisition- implementation- maintenance
-support
BUSINESS
-business direction-requirements-prioritisation
ETA
-technical direction-technology trends
- standards
IT STRATEGY
-technology strategic direction
DELIVERY
-design-dev/acquisition- implementation- maintenance
-support
Project support, funding, methodologies
Standards, models, SOE, Reference Architectures
Enterprise Technology Architecture
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Implications
Project life cycle will be different Project initiation – ETA delivers architected solutions outline
up front Project design – ETA assures architecture compliance Project completion – ETA adds re-usable components to
asset base
Project funding model will support both business and technology benefits (ie. projects’ contribution to technology asset base)
Enterprise Technology Architecture
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Lessons Learnt
Enterprise Technology Architecture
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Lessons (being) Learnt
ETA is more effective when focusing on the future – difficult to influence projects already commenced.
– ETA & Project goals are in conflict – balancing “enterprise goodness” goals against delivery goals of time and cost.
Need to be better connected with key parts of the organisation– Strategic Planning, Finance, Risk & Assurance– Project Governance groups
Need to watch out for “short termism” or “quick wins”– Short term always looks cheaper– ETA benefits are always in the long term.
Standards enforcement is difficult– Must demonstrate business value – why the standard is important– Guidelines to projects on how they can conform – shift in emphasis to Vendors– “Take away the choice” from projects – provide a standards based
infrastructure
Sound and top-down Governance is key