Feeds

Making Progress in a pragmatic way

Building and testing SOA organically

Top 5 reasons to deploy VMware with Tegile

One of the interesting messages that normally comes out of discussions about SOA is that it gives developers and architects the environment in which they can transform the traditional "IT silo" infrastructure that is the norm in most enterprises.

Yet according to Giles Nelson, director of technology for enterprise infrastructure products at Progress Software, pragmatic exploitation of that same silo approach may just be the way enterprises can make SOA happen for real.

"Many companies see SOA as a platform that can be bought – and some vendors do sell the technology that way," he said. "But SOA has to be an organic growth within a company, it does not work like a command economy where a single platform is decided upon from above."

Extrapolating onwards from the traditional silo approach means, in his view, that enterprises can think strategically but act tactically. This will allow them to start with a single project if necessary, the type of approach that can often win senior management buy-in without breaking the bank or risking the company.

"But they should also be thinking about the integration of that project with other possible projects, and the way they will need to interoperate," Nelson said. "This way many companies will end up realising they have an SOA-based environment only after having got there, rather than having tried to plan it round a pre-conceived platform."

This pragmatic approach to building SOA environments extends, in Nelson's view, to the way SOA services need to be tested. While he acknowledges that the pre-production testing of code – be that applications or components – is an important step in the development process, the reuse of applications and code implicit in SOA changes the way developers and architects need to set about testing the services that are provided.

His view, one that obviously justifies part of the reason Progress acquired Actional last year, is that the best way to test services that are made up of pre-tested applications and components is to instrument the production systems in a non-instrusive manner. "This allows you to monitor what is happening in the production system in real time, while at the same time implementing security policies separately from any other services."

This approach also offers the scope to manage one of the possible unknowns about SOA implementations. This is where developers and architects assume that, because a code component has passed pre-production testing, it will always work correctly in every re-combination of components they bring together to build a service. This, as Nelson acknowledged, could be a seriously misplaced assumption in the wrong circumstances.

"But with non-instrusive instrumentation it is then possible to allow developers to work to a 'reasonable rules' policy when building services," he said. "They can assume that a pre-tested function can be reused in new services, while accepting that it might not work, and that the monitoring instrumentation will trap any problem before it becomes serious." ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Preview redux: Microsoft ships new Windows 10 build with 7,000 changes
Latest bleeding-edge bits borrow Action Center from Windows Phone
Google opens Inbox – email for people too thick to handle email
Print this article out and give it to someone tech-y if you get stuck
Microsoft promises Windows 10 will mean two-factor auth for all
Sneak peek at security features Redmond's baking into new OS
UNIX greybeards threaten Debian fork over systemd plan
'Veteran Unix Admins' fear desktop emphasis is betraying open source
Google+ goes TITSUP. But WHO knew? How long? Anyone ... Hello ...
Wobbly Gmail, Contacts, Calendar on the other hand ...
DEATH by PowerPoint: Microsoft warns of 0-day attack hidden in slides
Might put out patch in update, might chuck it out sooner
Redmond top man Satya Nadella: 'Microsoft LOVES Linux'
Open-source 'love' fairly runneth over at cloud event
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.