http://www.column2.com/2008/04/tucon-keynote/ BPM, Enterprise 2.0 and technology trends in business. Fri, 19 Mar 2010 10:19:34 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://www.column2.com/2008/04/tucon-keynote/comment-page-1/#comment-7851 Complex Event Processing (CEP) Blog » CEP and TUCON - Where Reality Trumps All Thu, 08 May 2008 21:16:51 +0000 http://www.column2.com/2008/04/tucon-keynote/#comment-7851 [...] a few nice posts ended up in the blogosphere that comment on TUCON, SOA, CEP et al – , Sandy Kemsley, Joe McKendrick, Dana Gardner, Tony Baer among others with interesting [...] [...] a few nice posts ended up in the blogosphere that comment on TUCON, SOA, CEP et al – , Sandy Kemsley, Joe McKendrick, Dana Gardner, Tony Baer among others with interesting [...]

]]> http://www.column2.com/2008/04/tucon-keynote/comment-page-1/#comment-7801 Sandy Kemsley Fri, 02 May 2008 00:14:11 +0000 http://www.column2.com/2008/04/tucon-keynote/#comment-7801 It's true that $24M would be much more in today's dollars, but my experience is that over the lifetime of custom software, you spend about 10x maintaining it than you spent building it in the first place. There's huge inertia in replacing systems, which is why they tend to be (expensively) maintained rather than replaced frequently. It’s true that $24M would be much more in today’s dollars, but my experience is that over the lifetime of custom software, you spend about 10x maintaining it than you spent building it in the first place. There’s huge inertia in replacing systems, which is why they tend to be (expensively) maintained rather than replaced frequently.

]]> http://www.column2.com/2008/04/tucon-keynote/comment-page-1/#comment-7773 Gregory Y Wed, 30 Apr 2008 18:26:45 +0000 http://www.column2.com/2008/04/tucon-keynote/#comment-7773 "he used the Golden Gate bridge in another analogy about software: the bridge cost $24 million to build, and $54 million per year to maintain. This analogy is especially true of custom integration software, where in many cases you either effectively rewrite it constantly to keep up with other changes in your environment, or allow it to fall into disrepair." - interesting analogy, unfortunately discredited by distortion of the scale. I am sure the quoted cost to build is an original investment without correction for inflation. If it cost twice as much to maintain, as it is to build, it should be rebuild a new as soon as possible. It is done in civil engineering all the time, but perhaps not as soon as it should be. How many SOA projects, that involve replacement of legacy systems, do you see? “he used the Golden Gate bridge in another analogy about software: the bridge cost $24 million to build, and $54 million per year to maintain. This analogy is especially true of custom integration software, where in many cases you either effectively rewrite it constantly to keep up with other changes in your environment, or allow it to fall into disrepair.” – interesting analogy, unfortunately discredited by distortion of the scale. I am sure the quoted cost to build is an original investment without correction for inflation. If it cost twice as much to maintain, as it is to build, it should be rebuild a new as soon as possible. It is done in civil engineering all the time, but perhaps not as soon as it should be.
How many SOA projects, that involve replacement of legacy systems, do you see?

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