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Strategic Design - Responsibility Traps

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Bio

Eric Evans is a specialist in domain modeling and design in large business systems. Since the early 1990s, he has worked on many projects developing large business systems with objects and has shared his experience in the book "Domain-Driven Design," Addison-Wesley 2003. Eric now leads Domain Language, Inc.

About the conference

QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community. QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.

Recorded at:

Sep 03, 2009

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Community comments

  • i really, really liked it.

    by uwe schaefer /

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    Eric Evans obviously is a very good speaker.

  • Re: i really, really liked it.

    by cai chao /

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    Eric's ways seems much like the SOA concept, wrap the legacy system and map the different model; reuse the services to make the new features.

  • Depressing as heck but the last 3rd gives a shred of hope for the industry

    by William Bohrer /

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    I almost quit the industry until 2/3 of the way through when he admitted he was probably depressing responsible architects and designers :-)

    Yes, it does sound like the SOA technique of wrapping Legacy systems, that's hardly a new concept, but with 22 years experience, I don't find any of Eric Evans ideas are new, but I do find it nice that he's bundled them together and is evangelizing the importance of good engineering and design practices and domain modelling in particular.

  • Yes, but...

    by Tiberiu Fustos /

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    Fully agree with the content and the proposed method. The problem is, that many large companies have huge legacy "system-landscapes" (=big balls of mud) that have successfully survived previous attempts to migrate, clean-up etc. and meanwhile their maintenance is so expensive that phasing them out is a must from purely a financial point of view.
    What I notice is that usually these companies start every 3-5 years such initiatives as described at the beginning of the presentation and end up in the same situation (year 2 usually means the end of it). Due to the fact that after such failures usually the management is also exchanged, it is almost impossible to have any discussion about a different approach...

  • Re: Yes, but...

    by William Bohrer /

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    Spot on. It takes more than 2 years to replace these large IT systems but that's as long as management is willing to wait, so they always fail.

    The trick is to cut the thing into pieces and have staged deliverables. Sometimes that's not easy, when like you said, all you have is a big ball of mud (or as I like to describe it, a sagging carboard shanty that the users want you to wallpaper, add gold faucets, and hang a chandelier in.)

  • Where is the audio??

    by Dmitry Novoselov /

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    I normally listen to the presenations when commuting.
    Why there's no audio to this presentation posted?

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