And conceptual model is... - Michael
________________________________ From: Steve Jones <[email protected]> To: [email protected] Sent: Fri, July 2, 2010 6:45:55 AM Subject: Re: [service-orientated-architecture] About canonical data model +1 On 1 July 2010 14:28, Dennis Djenfer <d...@algonet. se> wrote: >Unfortunately we don't have common names for all those different kinds of >models >that we're using in this industry, so it can be quite hard sometimes to >understand what kind of model someone is talking about. I'm talking about a >high >level information model accompanied with a definition and description of each >object in the model. You may use an ER-tool to create the model, and it's only >the most important enterprise information objects that goes into this model >and >only the most important relations between these objects. The objects may have >attributes, but it's only the most relevant and important attributes that are >used in the model. However, it's not a conceptual model, it's an information >model. > >// Dennis Djenfer > > > >On 2010-06-28 22:56, Michael Poulin wrote: >Dennis, >>if you mean a common (for the enterprise) data vocabulary (what is what and >>how >>it relates to others), I am with you. >> >> >>- Michael >> >> >> ________________________________ From: Dennis Djenfer <d...@algonet. se> >>To: service-orientated- architecture@ yahoogroups. com >>Sent: Tue, June 22, 2010 11:05:47 PM >>Subject: Re: [service-orientated -architecture] About canonical data model >> >> >>I agree with that. Data models can be defined on many abstraction levels, and >>when people are talking about using a common data model they often mean very >>different things. I believe in using a common enterprise data model as one of >>the cornerstones when integrating systems or creating services, but I'm not >>talking about a detailed data model, rather something like your MDM approach >>or >>even higher abstraction levels. I've found this high level common enterprise >>data model being very effective at creating a common understanding of >>important >>concepts and information in an enterprise. >> >> >>// Dennis Djenfer >> >> >>Sounds like the >> >>On 2010-06-22 22:04, Steve Jones wrote: >>Not really as MDM isn't about the full model its about the core and >>identifying >>duplicates and commonalities. So for "Person" for instance it might only be >>25 >>attributes that are used by MDM to do that. The other 300+ attributes that >>exist around the enterprise aren't included within the MDM model. >> >>> >>> >>>Steve >>> >>> >>> >>>On 23 June 2010 01:37, Dennis Djenfer <d...@algonet. se> wrote: >>> >>> >>>>Steve, >>>> >>>>In your blog you write: >>>> >>>>"The only sensible policy is to look at an "active" MDM strategy and a >>>>brokerage >>>>approach to communication between systems ideally based around a federated >>>>data >>>>strategy that leaves information its its source systems but provides >>>>references >>>>between them." >>>> >>>>Where does the data model for the active MDM strategy and brokerage >>>>approach >>>>come from? Isn't that the same model as you would use for buidling a >>>>canonical >>>>data model? >>>> >>>> >>>>// Dennis Djenfer >>>> >>>> >>>> >>>>On 2010-06-22 11:34, Steve Jones wrote: >>>>Short answer... don't. >>>>> >>>>> >>>>>Longer answer http://service- architecture. blogspot. com/search? >>>>>q=SOA+canonical >>>>> >>>>> >>>>>On 21 June 2010 13:26, <jorg...@uci. cu> wrote: >>>>> >>>>> >>>>>>Hello all. >>>>>> >>>>>>I have a question for the design of a canonical data model. >>>>>> >>>>>>The issue is that I want to create a data services layer, and for making >>>>>>the >>>>>>design of services that expose data, first I want to create the canonical >>>>>>data >>>>>>model, which allows me to properly design services, and I want to know if >>>>>>this >>>>>>canonical data model should correspond to the data model of the database, >>>>>>E / R >>>>>>model , or I just model the information concepts that are handled in the >>>>>>database. >>>>>> >>>>>>Jorge. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>> >>
