Agile 3 – On agile businesses and systems
Copyright Graham Berrisford. One of several hundred papers at http://avancier.website. Last updated 29/06/2019 19:27
Avancier’s agile papers
This is the third in a series of papers.
2. On agile software development
3.
On
agile businesses and systems
4. On systems thinking ideas used in agile
5. What is agile architecture?
6. EA in the world of agile architecture
Enterprise
architecture (EA) has always been challenging, both technically and
politically.
In
the 1990s, the US OBM Memoranda 97-16 guidance on EA declared that.
“the balance between
centralization and decentralization and the pace of change within the agency,
should be clearly understood.”
Today,
the centralisation-decentralisation balance, and the pace of change, remain
huge issues.
Gurus
like to discuss what a business should do to survive in a changing world.
The vision
is of an agile business, enabled and supported by agile systems.
In this context, what
does agility mean? And what trade offs have to be made?
Contents
“The five trademarks of agile
organizations”
The old
paradigm “Organisation as Machine”
The new
paradigm “Organisation as Organism”
On the
Internet giants (FANGS)
The limits to “the learning organisation”
This questionable McKinsey article described two paradigms.
The article discusses how, in the early 20th century, Henry
Ford and Frederick Taylor promoted specialisation of roles under a management
hierarchy.
It characterises the organisation as a machine in the following way.
1.
“In an environment
of scarcity, we succeed by capturing value from competitors, customers, and
suppliers for our shareholders.”
2. “People need to be directed and managed, otherwise they won’t know what
to do—and they’ll just look out for themselves. There will be chaos.”
3. “To deliver the right outcome, the most senior and experienced
individuals must define where we’re going, the detailed plans needed to get
there, and how to minimize risk along the way.”
4. “To achieve desired outcomes, leaders need to control and direct work
by constantly specifying tasks and steering the work of employees.”
5. “Technology is a supporting capability that delivers specific services,
platforms, or tools to the rest of the organization as defined by priorities,
resourcing, and budget.”
This seems a description of a straw man, since in my experience of
business since the 1970s:
·
Once trained, few
employees are closely managed and controlled.
·
Detailed planning
of changes is often not possible, or done.
·
Technologies are
already embedded in business operations.
The article is questionable from start to end
starting with this – an organism is a machine.
It suggests we should be surprised at what seems
predictable.
“When machine organizations have tried to
engage with the new environment, it has not worked out well for many.”
Is that a surprise? Presumably, the new
environment is a digitised world.
A business that purchases and makes and moves
materials is completely different from one that captures data and manipulates
it.
“A very small number of companies have
thrived over time. Less than 10 percent of non-financial S&P 500 companies
in 1983 remained in 2013.”
Is that a surprise? Doesn’t that show that
the economy as whole is agile? And healthy in that new companies can overtake
old ones?
“82% went through a redesign in the last
three years. However, most efforts fail—only 23 percent were successful.”
Is that a surprise? Isn’t redesign what
already-failing companies do?
(A Forbes article found half senior leaders
rate their business transformations a waste of time.)
The article suggests specialisation of roles
under a management hierarchy is a bad thing.
But this goes way back, to 19th century
sociology (Weber), to 18th century economics (Smith), and the beginnings of
civilisation. Surely, the ideas will never go away.
·
In a theatre:
should a play have no director; should actors and stagehands be
interchangeable?
·
In a plane: should
there be no pilot; should the cabin crew be able to steer the plane?
·
In a surgical operation:
should the surgeon not direct affairs; should your anaesthetist pick up the
surgeon’s scalpel?
Having said that, it is clear that the pace of business change has
increased over the last 100 years.
And a business needs its employees to be more flexible (or else, dare
one say it, more replaceable).
The article’s analogy
is ill-chosen, since organisms are machines.
And rather than redesign themselves,
organisms die to make room for descendants.
Evolution favours those descendants
better fitted to changes in the environment.
The article summarises the five
trademarks as follows, to which some caveats have been added.
1) North Star embodied across the organization
“Recognizing the abundance of opportunities and resources available to
us, we succeed by co-creating value with and for all of our stakeholders.
To give coherence and focus to their
distributed value creation models, agile organizations set a shared purpose
and vision… that helps people feel personally and emotionally invested.”
OK but beware others say: "Most
corporate mission statements are worthless.” Russell
Ackoff (1986). “Management in Small Doses”, Wiley
2) Network of empowered teams
“When given clear responsibility and authority, people will be highly
engaged, will take care of each other, will figure out ingenious solutions, and
will deliver exceptional results.”
OK if somebody
has divided the enterprise into a network of responsibilities that connect in a
coherent whole.
As
above: “the balance between
centralization and decentralization… should be clearly understood.” 1997
3) Rapid decision and learning cycles
“We live in a constantly evolving environment and cannot know exactly
what the future holds.
The best way to minimize risk and succeed is to embrace uncertainty and
be the quickest and most productive in trying new things.”
OK if you have no long term target, like sending a man to the moon,
making a movie, or
replacing a legacy system.
As
above: “the pace of
change within the agency, should be clearly understood.” 1997
4) Dynamic people model that ignites passion
“Effective leaders empower employees to take full ownership, confident
they will drive the organization toward fulfilling its purpose and vision.”
OK if you can find them, and each team is already trained to the
required level.
5) Next-generation enabling technology
“Technology is seamlessly integrated and core to every aspect of the
organization as a means to unlock value and enable quick reactions to business
and stakeholder needs.”
OK if your business is not primarily based on human knowledge and
skills (teaching, catering, hospitality, entertainment, etc).
Of course, most businesses today sit somewhere between the two paradigms described in the article.
Let us focus on the
last point: “Next-generation
enabling technology”.
A major source of business change is the digitisation of business roles and processes.
So-called “digital transformations” are supposed to involve new technologies like Social Media Applications, Big Data, Machine Learning and other kinds of Artificial Intelligence.
An EA-like approach
This article on the Indian government’s approach bemoans digital transformation initiatives as technology-led rather than business service and data led.
It features eight reference models:
· Business, Application, Data and Technology (as in traditional EA), also
· Architecture, Performance, Integration and Security.
The steps for national, state and local governments to design
architecture initiatives are outlined as below:
· Performance: Identify goals, targets and
indicators. What/when/how to measure and monitor? When/How/Who to analyze and
evaluate results? How/when to reports results?
· Business: Map current government services.
Identify required services. Plan to transition.
· Data: What/where/when data is needed?
Who needs and owns the data? How will it be used, consumed and protected from
illegitimate use? Where is it stored?
· Integration: Identify integration
requirements to realise whole-of-government perspective needed to achieve the
goals.
“The results and outcomes require aggregation of data from
various sources.
Realization of cross-domain, cross-sectoral services require
data interchange, common data standards and communication protocols.”
This data-orientation sounds like classic, strategic, cross-organisational EA.
Where does agility some in to the picture?
Lessons learned
This Forbes article quotes a survey finding half of senior leaders rate their business transformations a waste of time.
It suggests the issue is that most organizations are rushing to adopt the manifestations of digitisation.
For example, appointing chief digital officers and announcing programs to implement artificial intelligence.
Before getting to grips with what needs to change and therefore where their focus needs to lie.
“They don’t understand what is causing friction in the organization”
Five finding were:
· Worry about data before technology; reliable
data is vital.
· Reengineer processes; don’t just digitise them.
·
Smash the
silos (in the company structure).
·
It’s all about
the business model.
· People first, technology second.
This people, process and data orientation sounds classic business process reengineering.
Again, where does agility some in to the picture?
A
case study in business change https://lnkd.in/f5ehEF2
The link is to a case study in business management, planning and performance management.
Note that it is a bank, a data processing business, and therefore ripe for digitization.
Note also: “We were so bad, it was easy to improve” and the transformation was radical.
The bank was transformed over several years through a combination of:
· Better business performance metrics (e.g. related to customer experience).
· Better personal performance appraisals against KPIs
· Running meetings properly
· In-sourcing of what had been outsourced.
·
Empowering employees to make
incremental process improvement
·
Migrating customers and bankers to
digital operations.
Again, where does agility come into the picture?
Note
first that several changes and their success can be attributed to effective
top-down leadership.
It is a fine example of top-down leadership of strategic change.
Some agility emerged from encouraging people to improve their own processes.
Some agility emerged from being able to change software systems rather than change employees and material resources.
All organisations must strike a balance between top-down and bottom-up change
Where the balance lies depends on the nature of the business.
The last thing you want in a nuclear power station is workers making up their own processes.
Long-term
targets will evolve
Target setting (be it for a 15 day
sprint or a 5 year transformation) is a basic tool of business management.
In the banking case study above, the
directors sponsored a 5 year legacy replacement programme.
With the target building blocks in place, it took several
more years to complete the digital transformation.
Contrary to what you might read, EAs
rarely predict the long-term future in any detail.
And EAs has never presumed a target
architecture cannot change.
To accommodate change, an EA
framework must be iterative, with continual requirements change management.
Read the 1986 PRISM report that
informed EA "Dispersion
and Interconnection: Approaches to Distributed Systems Architecture".
The case study concludes with a
merger that disrupted the plans drawn up by the architects.
“Roger many nights in bed wondering about whether he
had done the right thing.
Could he have anticipated the merger, and adjusted
the architecture accordingly?
Mark and Roger decided that there was nothing they
could have done about it.
Had they tried to factor in a merger, they would have been unable to make any progress at all.”
Note also: the bank’s stated ambition was (and remains) to
become an internet giant, but not every business can become an internet giant.
In the phrase “Agile Business”, what kind of business do we have in mind?
Discussions often focus on rather
peculiar examples.
Notably, application-centric internet
giants like Facebook, Amazon, Netflix, Google and Spotify (FANGS).
These businesses depend on others for
their content - and the quality of that content.
·
Amazon sell
what others create; they can always replace a rejected element by another.
·
Uber piggy
back on drivers managing their own cars
·
Air BnB piggy back on owners managing their own accommodation.
·
Google
extract information from users and sell it back (in patterns that are not
always useful)
·
Facebook,
Twitter etc. share low quality data and low quality thinking (undermining the
notion of authoritative sources).
This table contrasts FANGS with other
kinds of business.
Characteristics of
FANGS |
Characteristics of
many enterprises |
The business is based on an application or
software product. |
Business operations are
human (healthcare), material (retail) or mechanical (mining) |
The business is a self-serve
platform for its users. |
Business operations are
end-to-end pipelines or value streams |
Business employees do not
interact personally with customers |
Business employees interact
personally with customers |
Operation/transaction
throughput is extremely high |
Operation/transaction
throughput is relatively low |
Low integrity, loose-coupled
operations. |
Tight integrity/quality
requirements. e.g. money-handling, health, and safety-critical. |
Mistakes and misjudgements
are resolved after they happen |
Mistakes and misjudgements
in business operations cannot be redressed after-the-fact |
Develop their own
business-specific software. |
Use more packaged COTS than
bespoke software. |
Many programmers think it cool to copy
what FANGS do - regardless of relevance, cost and complexity.
But most businesses are not like
FANGS.
And design patterns that FANGS have developed for extreme scale web applications come with costs and downsides.
Many systems thinkers promote the
idea that every business should be a "learning organisation" (after
Senge).
The learning organisation diverts resources
from optimising what a business does now to considering what it might do
differently in future.
It facilitates the learning of its
members, and continuously transform itself.
An aim is to change, adapt, and
transform to meet customer’s needs, with the current workforce.
The bank case study above
illustrates the idea of the learning organisation can prove beneficial.
Successes were achieved in the
process of transforming the nature of the bank’s business operations.
But let us not fool ourselves about
how far and fast a business can change.
Some
businesses are inherently more flexible than others
The
likes of Facebook, Amazon, Netflix, Google and Spotify (FANGS) are peculiarly
software-centred businesses.
Changing web sites and algorithms is one thing.
Changing physical assets and workers with special abilities, knowledge
or skills is another.
No amount of organisational learning
can save a bricks and mortar high street store and its sales assistants from
the threat posed by the likes of Amazon.
Remember Blockbuster? It could not
compete with Netflix, and went out of business.
Blockbuster's CEO had the chance to
buy Netflix in the 1990s.
Supposing he had done so; the
outcome would surely have been a reverse takeover.
It would have saved the Blockbuster
name - but not its stores or its employees.
Evolution
of the wider economy
Improvements do emerge from
continual iterative sense-response adaptation.
But to preserve every business
forever is impossible – and undesirable.
In regretting what happened to
Blockbuster, people overlook it was good for Netflix.
At first sight, a high rate of
business closures looks like a bad thing
It often mirrors a high rate of
starts ups – which may well signify a healthy economy.
Sometimes, it is better that a
business becomes extinct, and is replaced by a different kind of business.
The business world as a whole
evolves that way, rather by maintaining every business entity forever.
What
does it mean for a system to be agile?
That is a difficult question - with many possible
answers.
Sometimes it means employing
people to play roles in a system.
And empowering them to determine their actions, or change their roles.
It can mean a system that does little –
leaving people to choose how they use it.
Or a system that is flexible in that it is
readily
·
configurable
in operation to meet a variety of requirements.
·
modifiable
at design time to meet new requirements.
Then, a system
can be flexible in several different ways, as described in the table below.
Agile
variation |
The system can |
yet might also be |
Extendable |
be extended with extra features |
not malleable (the Open-Closed principle) |
Versatile |
do many different things |
complex and difficult to change |
Malleable |
be readily changed |
simple and not versatile |
Self-organising |
change its own roles and rules |
unpredictable and disorderly |
Agile development does not
necessarily produce agile systems.
Digitisation of systems is and
always has been a difficult and painstaking task.
Designing an agile system is a
challenge; and there are always trade offs.
To facilitate the
design, management and change of systems
· Decompose (Conway, 1968) modularise a large
monolithic system into subsystems
· Decouple (Constantine, 1968) strive for tight
cohesion within a subsystem and loose coupling between subsystems.
Taken too far
however, both have negative effects; designers must strike a balance.
Decomposition tradeoffs
This table contrasts the qualities of dividing a system into
larger or smaller subsystems
Within
a subsystem |
Between
subsystems |
|||
Size |
Processes |
Messaging |
Coupling |
|
Macro
subsystems |
Larger |
Longer |
Less |
Looser |
Micro
subsystems |
Smaller
|
Shorter |
More |
Tighter |
Decomposing a system into small, simple subsystems creates
complexity in the structure of the system.
It increases the volume and complexity of inter-subsystem
messaging.
There are many different ways to implement messaging,
ranging from tightly to loosely coupled.
Size matters in the sense that smaller, subsystems typically
merit tighter coupling than larger subsystems.
Decoupling
downsides
Decoupling can lead
to
· Duplications: caching of data from one data
store in another.
· Delays: processes are slowed by the need for
inter-application messaging.
· Disintegrities: and the complexity of compensating
transactions to restore integrity.
· Data analysis difficulties: where a report
requires data from several data stores.
“It is not high coupling per se that is the
problem; it is high coupling to elements that are unstable in some dimension… If
we put effort into “future proofing” or lowering the coupling when we have no
realistic motivation, this is not time well spent.” Craig Larman
Agile system or
simple system?
To make a system
more agile usually requires a redesign that makes the system more complex. Setting
out to build an agile system adds time and cost to development.
Agile
system principle |
|
Agile development principle |
Decouple
subsystems |
Can
be contrary to |
Keep
the system simple |
Design
for future flexibility |
Can
be contrary to |
You ain’t gonna need it |
Reengineering an old system to use
new technologies (or for scalability) does not make a system more agile in
other ways.
And it can complexify; in one case,
after being rewritten in Java, a single-server legacy system required a dozen
servers.
Agile system or
fast system?
An agile system is
usually slower than a rigid one. E.g. shifting business rules from procedural
instructions to data variables that end users can change.