Comments on: WebCast on SOA in the E-VAN

By: udidahan

udidahan — Sat, 01 Aug 2009 07:22:30 +0000

Niraj,

Unforunately, I don’t know of any SOA books that discuss the topic from this angle.

By: Niraj

Niraj — Mon, 20 Jul 2009 03:45:24 +0000

Thanks Udi. While I try for that do you have any other recommended readings (books for instance) on SOA?

By: udidahan

udidahan — Wed, 15 Jul 2009 06:35:43 +0000

Niraj,

There are options for companies to have me mentor their people, so, yes.

By: Niraj

Niraj — Tue, 14 Jul 2009 16:51:25 +0000

Awesome Udi. Do you have any intership program ?

By: Evgeny Shapiro

Evgeny Shapiro — Fri, 19 Jun 2009 17:42:50 +0000

Have I missed the part about business activity monitoring? This is a part I’m particularly interested in.

Could you be so kind to dedicate a post on that ?

By: udidahan

udidahan — Sat, 06 Jun 2009 11:48:11 +0000

Stefano,

You’ve got it!

By: Stefano Martinz

Stefano Martinz — Sat, 06 Jun 2009 09:54:58 +0000

Hi Udi,

Thanks for the presentation, I really enjoyed it. I was wondering what you think about distributed transactions involving multiple services. If I got the point of your talk, there’s should never be any…or, in other words, if we discover we really need them, then it means we got the service boundaries wrong. Is that correct?

thanks again
stefano

By: udidahan

udidahan — Tue, 02 Jun 2009 04:03:39 +0000

Thanks Sean – glad you liked it.

By: udidahan

udidahan — Tue, 02 Jun 2009 04:03:19 +0000

Artur,

Glad you liked it.
To your questions:

Just like multiple services can use .NET, SQL Server, NHibernate, etc – they can use common components for authentication and authorization. The component isn’t duplicated, it’s just run in more than one place.

In terms of DDD, the bounded context is the closest thing to the services I described in SOA.

Hope that helps,

By: Sean

Sean — Mon, 01 Jun 2009 20:05:56 +0000

Thanks a lot Udi, was very good!

By: Artur Trosin

Artur Trosin — Mon, 01 Jun 2009 19:58:15 +0000

Hi Udi,
Thank you for a great presentation !
I have two questions for you,

How do u handle situations when you really have to have common data\Entities (maybe logic) for services… special case could be security (authentication, authorization) … for more than one service?
(I see two ways: share common objects that will break autonomy as I understand or duplicate them that is not a good answer to the problem)

How DDD and SOA fit together from your perspective? If you have combined the approaches together then how do you start the SOA&DDD project from architecture, design/modeling perspective?

Thank you!