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Architecture and method: the keys to SOA
Market Report, March 2007, 600  €


Description

Last year we published a report in which we explained that a failure to properly consider the ‘A’ in SOA will result in us making the same mistakes we’ve always made when it comes to software and reuse.
However, even this is not enough – there is a silent ‘M’ in SOA; service-oriented development has to be supported by ‘methods’ that encompass best practice in service design and reuse.
Adopters who ignore the ‘A’ and silent ‘M’ in SOA will inevitably be disappointed.
Over the past 12 months there has been little apparent enthusiasm among vendors to tackle the really complex issues associated with SOA, so we’re republishing this updated version of that report.


Sommaire
 
Table of contents

Key messages

What do users have to do to make SOA work in practice?

What do vendors have to do to make their solutions effective?

The promise of SOA

Behind the promises

SOA: same old architecture

CORBA provided all of the technical means to reuse services
Why did CORBA fail to become ‘the’ standard distributed object model?

So what is new about web services?

SOA and web services: plus ca change

Web services are sailing dangerously close to the rocks that damaged CORBA
Interoperability is directly related to complexity
The more complex web services become the harder they are to create
Web services proponents mistakenly believe that reuse will simply take place spontaneously

SOA: adding the ‘A’ and the ‘M’

Setting up for reuse – making it easy to discover services
Setting up for reuse – making it easy to understand what a service does
Setting up for reuse – making it easy to use a service
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