The document discusses the challenges and considerations related to the adoption of microservices within organizations, emphasizing that while microservices can enhance agility and adaptability, they are not suitable for every context. It outlines the importance of organizational readiness, architectural skills, and effective change management for successful microservices implementation. The author advocates for cross-functional teams and lightweight processes to facilitate transformation and highlights that technology issues often stem from people-related problems.

1. The Business Behind MICRoservices:
OrganisationAL, architectural and Operational Challenges
Daniel
Bryant
@danielbryantuk
|
daniel.bryant@opencredo.com
@OpenCredo
|
www.opencredo.com

2. Today
–
Microservices…
• Awesome,
but
not
for
every
organisaDon/project?
• There
is
macro
organisaDonal
and
people
impact
• Establish
architectural/operaDonal
foundaDons
• Apply
lightweight
process
to
drive
change
23/09/15
@danielbryantuk

3. Who
Am
I?
• London
Java
Community
Associate
• Adopt
OpenJDK
and
JSR
• InfoQ
Editor
and
DZone
MVB
23/09/15
@danielbryantuk
• Principal
Consultant
at
OpenCredo
ü Agile,
CI/CD,
DevOps
ü Microservices
and
cloud
ü Docker,
Mesos
and
Kubernetes

4. 1. Microservices are the new shiny...…
23/09/15
@danielbryantuk

5. So,
What
is
a
Microservice?
“Loosely coupled service oriented architecture
with bounded contexts”
Adrian Cockcroft
“Applications that fit in your head”
James Lewis
23/09/15
@danielbryantuk

6. Why
Are
Microservices
Popular?
• Enforcement
of
good
architecture/design?
• Lower
barrier
to
entry
– CogniDve
overhead
– Cost
of
experimentaDon/change
• “…first
post
DevOps
revoluDon
architecture”
– Neil
Ford
(thght.works/1j9btLx)
23/09/15
@danielbryantuk

7. A
Perfect
(Industry)
Storm
• Pain
points
– Monolith
issues
– Complex
enterprise
middleware
– Value
stream
challenges
• DisrupDon
by
the
Vanguard
– ‘DevOps’
and
prevalence
of
APIs
– Economics
of
cloud
(containers)
– Connected
companies
23/09/15
@danielbryantuk

8.
So,
are
microservices
always
the
best
approach?
23/09/15
@danielbryantuk

9. OrganisaDonal
Design
• Divided
Companies
– TradiDonal
‘enterprise’
organisaDon
– Command
and
control,
specialised,
division
of
labour
– Predictable
in
stable
environments
• Connected
Companies
– Startups
and
forward-­‐thinkers
– Autonomous,
fractal,
service-­‐focused
– AdapDve
in
uncertain
environments
23/09/15
@danielbryantuk

10. Is
Your
Business
Ready?
• Are
we
all
aligned
on
the
vision/goals?
• Is
‘agile’
a
dirty
word?
• Planning
and
delivery
processes
– McKinsey’s
“Three
Horizons”
– Gartner’s
“Bi-­‐modal
IT”
– Simon
Wardley
“Pioneers,
Sejlers,
Townplanners”
23/09/15
@danielbryantuk

11. Microservices
for
Speed(?)
skillsmajer.com/skillscasts/6143-­‐microservices-­‐for-­‐speed
23/09/15
@danielbryantuk

12. Architectural/Design
Skills
“If
you
can't
build
a
[well-­‐structured]
monolith,
what
makes
you
think
microservices
are
the
answer?”
Simon
Brown
(bit.ly/1n7D0vp)
23/09/15
@danielbryantuk

13. Architectural/Design
Skills
23/09/15
@danielbryantuk

14. OperaDonal
Maturity
23/09/15
@danielbryantuk
marDnfowler.com/bliki/MicroservicePrerequisites.html

15. On
a
Lighter
Note
Microservices
are
a
great
approach…
…given
the
correct
goals,
situaDon
and
desire
for
change
23/09/15
@danielbryantuk

16. 2. Conway was telling the truth... Deal with it!
23/09/15
@danielbryantuk

17. How
Do
Commijees
Invent?
“organizaCons
which
design
systems
...
are
constrained
to
produce
designs
which
are
copies
of
the
communicaCon
structures
of
these
organizaCons”
-­‐
Melvin
Conway,
1968
23/09/15
@danielbryantuk

18. Stereotypical
Silos...
Dev
QA
Ops
Hand-­‐off
delays
Hand-­‐off
delays
Slow
feedback
Slow
feedback
Lack
of
cohesion,
shared
understanding
and
joint
accountability
Front-­‐end
Database
Middleware
23/09/15
@danielbryantuk

19. The
Results…
23/09/15
@danielbryantuk
www.infoq.com/news/2015/06/too-­‐big-­‐to-­‐fail

20. The
Inverse
Conway
Maneuver
“The
team
structure
dictates
the
architecture,
which
in
turn
dictates
the
team
structure…”
Raffi
Krikorian
(bit.ly/1KzGYV0)
23/09/15
@danielbryantuk

21. Cross-­‐funcDonal
Teams
• SpoDfy
(bit.ly/1C46ZKo)
– Culture
• Amazon
(bit.ly/1F3Dgkm)
– CommunicaDon
• Gilt
(gi.lt/1rgyWvO)
– Strategic
alignment
23/09/15
@danielbryantuk

22. SpoDfy
23/09/15
@danielbryantuk

23. 3. All Technology problems are people problems
23/09/15
@danielbryantuk

24. Business
Strategy
(@swardley
style)
• SituaDonal
awareness,
strategy,
mapping
– SituaDon
Normal,
Everything
Must
Change
• One
[project
management]
size
does
not
fit
all
– Agile
vs
Lean
vs
Six
Sigma
• Enabling
innovaDon
23/09/15
@danielbryantuk

25. Killer
Performance
Indicators
• Shared
goal
sesng
is
key!
– KPIs,
OKR,
CSF…
WAT??
• Create
condiDons
for
success
– OrganisaDonal
structure
– Orient,
explore,
exploit,
transform
– Plan,
do,
check,
act
23/09/15
@danielbryantuk

26. Architecture,
Minus
the
Ivory
Towers
• Technical
leadership
(bit.ly/1EUwpLl)
• CommunicaDon
(bit.ly/1Ia3u8o)
• Promote
shared
understanding
• ‘Just
enough’
up
front
design
23/09/15
@danielbryantuk

27. Architect/Design
for
Replacement
23/09/15
@danielbryantuk
James
Lewis
bit.ly/1Qy4g2d
Sam
Newman
bit.ly/1WijsUX

28. Microservices…
Macro
OperaDons
• Microservice
Prerequisites
(bit.ly/1wIjY58)
– Rapid
provisioning
– Basic
monitoring
– Rapid
applicaDon
deployment
• In
a
nutshell…
– Technical
parts
DevOps
– CI/CD
23/09/15
@danielbryantuk

29. In
the
Beginning…
23/09/15
@danielbryantuk

30. …and
in
the
Middle
(and
the
‘End’)
23/09/15
@danielbryantuk
www.infoq.com/news/2015/06/too-­‐big-­‐to-­‐fail

31.
So,
we’ve
looked
at
the
business,
organisaDonal
structure,
and
people
aspects….
…how
do
we
actually
implement
this
change?
23/09/15
@danielbryantuk

32. 4. Change management without Management double-speak
23/09/15
@danielbryantuk

33. Change
Management
is
EssenDal
• Fair
process
– Engagement
– ExplanaDon
– ExpectaDon
• Leading
change
– TransformaDon
is
a
process
– “Change
is
coming
to
IT”
(bit.ly/1QZovXr)
– Communicate,
empower,
plan,
consolidate
23/09/15
@danielbryantuk

34. A
Look
into
My
Toolbox
• (Over-­‐)communicate
vision
– Engage,
explain,
expectaDons
(Dmescale
+
KPIs)
• FoundaDon
workshops
– Empower
and
support
champions
• Show
by
doing
(and
teaching)
• Take
the
team
pulse
regularly…
23/09/15
@danielbryantuk

35. A
Look
into
My
Toolbox
23/09/15
@danielbryantuk

36. A
Look
into
My
Toolbox
• MoSCoW
• RASCI
– Responsible
– Accountable
– Support
– Collaborate
– Informed
• RAG
status
23/09/15
@danielbryantuk

37. Leadership
–
Oxen
Undervalued
“Management
is
doing
things
right;
leadership
is
doing
the
right
things”
-­‐ Peter
Drucker
23/09/15
@danielbryantuk

38.
In
summary…
23/09/15
@danielbryantuk

39. The
Business
Behind
Microservices
• Ask
‘can
we
benefit
from
microservices’?
– TransformaDon
is
a
process
• Agile,
Design
Skills,
CI/CD,
DevOps
prerequisites
• Cross-­‐funcDonal
goal-­‐oriented
teams
FTW
• Lightweight
change
management
processes
help
23/09/15
@danielbryantuk

40. THANKS... QUESTIONS?
@danielbryantuk
daniel.bryant@opencredo.com
www.opencredo.com/blog
‘Microservices
Weekly’
(eepurl.com/bz5t4P)
www.parleys.com/author/daniel-­‐bryant
www.infoq.com/author/Daniel-­‐Bryant
23/09/15
@danielbryantuk

41. My
Other
Resources
• My
arDcles:
– hjps://www.voxxed.com/blog/2015/01/understanding-­‐the-­‐business-­‐behind-­‐microservices-­‐
recommended-­‐reading-­‐part-­‐one/
– hjp://java.dzone.com/arDcles/introducing-­‐dzone-­‐guide-­‐cloud
(Cloud
DHARMA
guidelines)
– hjp://www.dzone.com/research/guide-­‐to-­‐enterprise-­‐integraDon
(Enterprise
MSA
&
DecomposiDon)
• Videos
I
menDoned:
– hjps://www.parleys.com/tutorial/thinking-­‐fast-­‐slow-­‐soxware-­‐development
– hjps://skillsmajer.com/skillscasts/5938-­‐developing-­‐java-­‐services-­‐for-­‐the-­‐cloud
– hjps://www.parleys.com/tutorial/moving-­‐devops-­‐mode-­‐easy-­‐hard-­‐just-­‐plain-­‐terrifying
• My
InfoQ
news
(Cloud,
microservices,
and
container
tech)
– hjp://www.infoq.com/author/Daniel-­‐Bryant
• Other
books
– hjp://www.amazon.co.uk/Working-­‐EffecDvely-­‐Legacy-­‐Robert-­‐MarDn/dp/0131177052
– hjp://www.amazon.co.uk/ImplemenDng-­‐Domain-­‐Driven-­‐Design-­‐Vaughn-­‐Vernon/dp/0321834577
23/09/15
@danielbryantuk