Download - Will They Blend? - Agile, TOGAF and Enterprise Architecture

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Agile, TOGAF and Enterprise Architecture:

Will They Blend?


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Today’s Speakers

Moderators:

Corjan BastMarketing Manager, ITpreneurs

Presenter:

Danny GreefhorstEnterprise Architecture Expert

Director at ArchiXL


Today’s Speakers

Presenter:

Danny GreefhorstEnterprise Architecture Expert

Director at ArchiXL

● Instructor on Enterprise Architecture

● Background in software engineering

● Chair of Via Nova Architectura and

Architecture Section of Dutch Computer Society

● Honorary Medal | Dutch Architecture Forum

● Author of books on architecture principles and digital

transformation


Agenda

The TOGAF Approach to Enterprise Architecture (EA)

Agile and Scrum

Do Agile, EA and TOGAF Relate?

Do Agile, EA and TOGAF Overlap?


The TOGAF Approach to

Enterprise Architecture


Enterprise Architecture (EA)

“Those properties of a thing and its

environment that are necessary and

sufficient for it to be fit for purpose for its

mission” (L. Fehskens)

“Managing the execution of the

corporate strategy” (J. Scott)

“Fundamental concepts or properties of

a system in its environment embodied in

its elements, relationships, and in the

principles of its design and evolution”

(ISO/IEC 42010)


EA aligns strategy to operations, and

business demand to IT supply, ensuring

changes are in line with strategy and goals

Enterprise Architecture provides insight into

the current and desired state of the

organization, information systems and

technology

EA improves quality of individual solutions,

simplifies their development and

maintenance, and prolonging their life time

Why Enterprise Architecture?

Alignment

Insight

Quality


TOGAF

● Framework for Enterprise Architecture (EA)

● Originally developed by the US government

in the 80s, now owned by the Open Group

● De facto EA standard in the market

● A description of processes, techniques and

products for EA

● A generic framework that can be tailored to

the situation


● The core of TOGAF

● A proven way of developing an

architecture

● Specifically designed to address

business requirements

● An iterative method

● A set of architecture views to ensure

that a complex set of requirements

are adequately addressed

TOGAF Architecture Development Method


How Enterprise Architecture relates to TOGAF

Enterprise Architecture TOGAF

A way of thinking about EA

A detailed description of the

techniques

The knowledge and

experience of practitioners

Other EA frameworks and

techniques (ArchiMate, FEAF,...)

Product-line architecture

Solution architecture

Tactical planning

Business & IT consulting

Architecture

Development Method

+

Guidelines and Techniques

Architecture

Content Framework

Architecture

Capability Framework


Why TOGAF and TOGAF training?

★ Formal standard, governed by a standardization organization

★ Broadly adapted by user organizations, consultants and IT suppliers

★ Includes formal certification process

★ Broad availability of training

★ Freely available for reading online

★ Based on broad experience and practices

★ Can be adapted to specific organizational context

★ Describes EA process as well as EA content and EA governance

★ You can contribute to the standard


Agile and Scrum


Manifesto for Agile Software Development

We are uncovering better ways of developing

software by doing it and helping others do it.

Through this work we have come to value:

Individuals and interactions over processes and tools

Working software over comprehensive documentation

Customer collaboration over contract negotiation

Responding to change over following a plan

That is, while there is value in the items on

the right, we value the items on the left more.

source: http://agilemanifesto.org


Principles behind the agile manifesto● Our highest priority is to satisfy the customer

through early and continuous delivery of

valuable software.

● Welcome changing requirements, even late in

development. Agile processes harness change for

the customer's competitive advantage.

● Deliver working software frequently, from a

couple of weeks to a couple of months, with a

preference to the shorter timescale.

● Business people and developers must work

together daily throughout the project.

● Build projects around motivated individuals. Give

them the environment and support they need, and

trust them to get the job done.

● The most efficient and effective method of

conveying information to and within a development

team is face-to-face conversation.

● Working software is the primary measure of

progress.

● Agile processes promote sustainable

development. The sponsors, developers, and

users should be able to maintain a constant

pace indefinitely.

● Continuous attention to technical excellence and

good design enhances agility.

● Simplicity--the art of maximizing the amount of

work not done--is essential.

● The best architectures, requirements, and designs

emerge from self-organizing teams.

● At regular intervals, the team reflects on how to

become more effective, then tunes and adjusts its

behavior accordingly.



Scrum

Source: neon rain interactive


DevOps applies Agile principles to operations

Development IT OperationsDevOps


Do Agile, EA and

TOGAF Relate?


Architecture vision

Architecture model

Agile starts where Enterprise Architecture ends

building

block

building

block

GoalBusiness

Requirement

Architecture

Principle

Agile project

Application

epic user story

Architecture roadmap

candidate

project

candidate

project

component component

componentcomponent


Architecture Vision

Architecture model

Agile starts where Enterprise Architecture ends

building

block

building

block

GoalBusiness

Requirement

Architecture

Principle

Agile project

Application

epic user story

Architecture roadmap

candidate

project

candidate

project

Pay for order online Pay via Paypal

Increase

customer

satisfaction

Self-service

Customers do not have

direct access to back-

office applications

Portal project

component

componentcomponent

component

Customer Portal


Positioning EA and Agile


Scaled Agile Framework

source: http://scaledagileframework.com

Agile is designed for

small teamsDean Leffingwell

The boys from Rational

Unified Process are back.

Building on the profound

failure of RUP, they are

now pushing the Scaled

Agile Framework as a

simple, one-size fits all

approach to the agile

organizationKen Schwaber

We do not face,

analyse failures and

limitations of our

assertions, claims,

practicesPhilippe Kruchten


Role of Enterprise Architect in SAFe

source: http://scaledagileframework.com

- maintain holistic vision

- aligns business drivers with

technical decisions

- sets technology standards

- drive common infrastructure

- influences modeling, design

and coding practices

- facilitates reuse of emergent

solutions, knowledge & patterns

- synchronizes issues and NFRs

across solutions


Scaling Agile @ Spotify

Chief architect

- coordinates work on high-level

architectural issues that cut

across multiple systems

- reviews development of new

systems to make sure they

avoid common mistakes, and

that they are aligned with

architectural vision

- the feedback is always just

suggestions and input - the

decision for the final design of

the system still lies with the

squad building it

source: Henrik Kniberg & Anders Ivarsson, 2012


What does this mean for training?

There remains a role for Enterprise Architects

○ Need for training on Enterprise Architecture and TOGAF

Some Enterprise Architects will become part of Scrum teams

○ Need for training on Agile and Scrum

People need better understanding of how EA and Agile relate

○ Opportunity for new training and consulting


Do Agile, EA and

TOGAF Overlap?


Enterprise Architecture versus Agile?

The “old way” versus the “new way”


Misconceptions about EA and TOGAF


Misconceptions about EA and TOGAF

● EA is about modelling everything

● You need to follow all the steps in TOGAF

● Architecture principles are laws that cannot be deviated from

● Developing an EA takes a long time

● TOGAF is a waterfall approach

● EA prescribes things that should be left to the project


Example architecture principles● Our highest priority is to satisfy the customer

through early and continuous delivery of valuable

software.




● Deliver working software frequently, from a couple

of weeks to a couple of months, with a preference

to the shorter timescale.










progress.



users should be able to maintain a constant pace

indefinitely.











Agile is an architecture


Example architecture model

source: neon rain interactive

Scrum is also an architecture


Applicability of Agile Manifesto to EA

We are uncovering better ways of developing

software by doing it and helping others do it.

Through this work we have come to value:

Individuals and interactions over processes and tools

Working software over comprehensive documentation

Customer collaboration over contract negotiation

Responding to change over following a plan

That is, while there is value in the items on

the right, we value the items on the left more.


Business

outcome


Applicability of agile principles to EA process● Our highest priority is to satisfy the customer

through early and continuous delivery of valuable

software.




● Deliver working software frequently, from a couple

of weeks to a couple of months, with a preference

to the shorter timescale.










progress.



users should be able to maintain a constant pace

indefinitely.











The draft

version of the

architecture


Our principles for EA

★ Architects focus on what is essential

★ Architects provide concrete and useful results

★ Architects facilitate a collaborative process

★ Architects provide knowledge and skills

★ Architects use reference architectures

★ Architects use open standard methods and techniques

source: http://www.tdan.com/view-articles/16108


How Enterprise Architecture overlaps with Agile

Enterprise Architecture Agile

Focus on management support

Produces paper and insight

Pre-project

Not necessarily daily

Abstraction

Focus on user support

Produces working software

Project

Daily work

Technical excellence

Iterative

Multi-disciplinary

Mandated business

representative(s)

Collaborative

Soft skills

Only the essentials


Conclusions

★ Enterprise Architecture provides an Agile project with a vision

★ Agile provides Enterprise Architecture with a good set of principles

★ Agile and Scrum can be seen as reference architectures


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TOGAF

Enterprise

Architecture

View Fact Sheet

https://docs.google.com/document/d/1PrM7Gj7eXpd7MTFTpAdLNQRNi-oUzDNkIDmQNuvtieA/edit


In Development

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Q&A


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Corjan Bast

Products & Solutions Marketing

ITpreneurs | Rotterdam | The Netherlands

mailto:[email protected]

Download - Will They Blend? - Agile, TOGAF and Enterprise Architecture

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