Jim Webber Martin Fowler Does My Bus Look Big In This

Does my Bus look big in this? Keynote Session Martin Fowler and Jim Webber

Integration: A Retrospective (Save Ferris)

Back in the day

Application silos were normal

Some smart people spotted a niche

And they built integration software

And it sort of worked

And silos were bridged (and yes, it was that ugly)

Over the years

Competitors came along

Integration experts grew powerful

And integration software grew…

… the wrong way

On a rich diet Transformations BPM Security GUI Tools Reliability Low Rules Latency Engine Adapters

And more silos were bridged (it doesn’t get any prettier)

SOA to the rescue!

Same Old Architecture? BPM Services Business Business Business Service Service Service Basic Basic Basic Basic Basic Service Service Service Service Service

Same old atrocity Accounting Marketing Product Development Support

ESB – Enterprise Service Bus? Or… BPM Business Business Business Service Service Service Service ESB Basic Basic Basic Basic Basic Service Service Service Service Service

ESB - Erroneous Spaghetti Box? Enterprise Service Bus

Architectural Fantasy

Ungovernable

Doesn’t Scale

Big SOA gets political Your cunning co- worker You and your boss

Mainstream SOA Today +

But resistance is not futile

Agility (Meanwhile, back in Gotham City...)

The beauty of traditional process

Time for a group hug!

We got tools and techniques...

Learning to grow, incrementally

Frameworks got better at agile too

T’Interweb (Surprisingly isn’t just great big Rails app)

Why the Web was inevitable... Tim Berners-Lee is a physicist (Sir Tim is also a knight, but that’s not important right now)

Why the Web was inevitable... He lived in a hole in the ground Underneath a big mountain

Why the Web was inevitable... And because he was a physicist (and not yet a knight)... ...he only had a big atom- smashing thing for company

Why the Web was inevitable... And for a lonesome physicist stuck underground with smashed up atoms for company... ...gopher just wasn’t going to cut it!

The Web broke the rules

The Web is protocol-centric

Dumb network, good idea!

Innovation at the edges, heavy lifting in the cloud

It has a serendipitous architecture

La lucha continua! (Guerrilla SOA, slight return)

Traditional SOA Us Them

Guerrilla SOA

Services Host Business Processes Service Infrastructure (Endpointware)

Business people own those processes

Business folks own services Service Infrastructure (Endpointware)

Prioritise and deliver incrementally

Then re-prioritise and keep delivering

Web-based Services (The browser is your granddad’s Web)

The Web is middleware

Ubiquitous on-ramp

Incremental

Low risk

Middleware optional

We still don’t like ESBs (with one or two exceptions)

Proxy server is your ESB Service Service Service Service Big, Big Proxy Server Service Service Service Service Service

A brilliant flash of hindsight •Proprietary middleware •Web-centric techniques –BUFD –Evolutionary design –Lengthy death-marches –Constant delivery –Expensive –Inexpensive –Risky –Incremental –Enterprise scale –Internet scale –Specialised –Commoditised –Integration separate –Integration by-product of activity delivering business value –Not very sensible –Quite sensible

Martin Fowler Jim Webber http://martinfowler.com http://jim.webber.name

Jim Webber Martin Fowler Does My Bus Look Big In This

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