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  • Re: Documentation On Data Model

     Hi Paul, What progress are you making with your web-based ORM editor? Ken 
    Posted to Developers (Forum) by Ken Evans on Mon, Nov 5 2018
  • Re: Relational Mapping Algorithm - is it OK?

     Hi Nicola, Thanks for your update. Here are some comments for clarification. 1: Terry may take a while to reply because his time zone is currently 10 hours ahead of yours and 11 hours ahead of mine (I'm in the UK) 2: When I want to post more than one image in a message, I use the "combine images" feature that was recently ...
    Posted to ORM Techniques (Forum) by Ken Evans on Fri, Nov 2 2018
  • Re: Relational Mapping Algorithm - is it OK?

     Nicola, Our JIRA system is the "appropriate" place for you to make comments on existing bugs, to report new bugs, to make feature requests or to report other findings. However, to do this, you will need a JIRA user account. JIRA is designed to help developers to "resolve issues" so JIRA treats everything as an ...
    Posted to ORM Techniques (Forum) by Ken Evans on Sat, Oct 27 2018
  • Re: Visual Studio 2015 Community "or above"?

     Awesome! By "it" I assume that you mean "NORMA for Visual Studio 2008? Ken 
    Posted to Technical support (Forum) by Ken Evans on Fri, Oct 26 2018
  • Re: Relational Mapping Algorithm - is it OK?

    Nicola, I really appreciate your helpful observations and comments. Some background: I have been using ORM since the early 1990's and have used each of the ORM tools. (InfoModeler, VisioModeler, VEA and NORMA.)  Work on NORMA started about 14 years ago. For many years, I have been aware that NORMA had bugs and deficiencies but until ...
    Posted to ORM Techniques (Forum) by Ken Evans on Fri, Oct 26 2018
  • Re: Question about join constraints and paths

    Nicola,I may be wrong, but you seem to be conflating three separate things:  (1) The way the RMAP algorithm works. (2) The way RMAP is implemented in NORMA. and (3) The scope of the model.We agreed to handle (1) & (2) in a separate thread and I see that you have already made some comments there.With respect to (3), You claimed that my ...
    Posted to Contributed Models (Forum) by Ken Evans on Fri, Oct 26 2018
  • Re: Question about join constraints and paths

    Nicola, ORM is better: The point about "ORM being better than anything else"  is in part related to the fact that NORMA uses RMAP to instantly create a 5NF logical model. This is "better" than alternative methods such as ERM because it saves a great deal of time. This was the subject of my 2007 MSc project which is ...
    Posted to Contributed Models (Forum) by Ken Evans on Fri, Oct 26 2018
  • Relational Mapping Algorithm - is it OK?

     In this separate thread, Nicola said: "I am disappointed (but not surprised) by the ORM-to-Relational mapping performed by NORMA. This is a topic for a different thread, though." So the purpose of this thread is to discuss Nicola's concerns about relational mapping in ORM and its RMAP implementation in NORMA. RMAP is ...
    Posted to ORM Techniques (Forum) by Ken Evans on Fri, Oct 26 2018
  • Re: Question about join constraints and paths

    Nicola, "your view of a conceptual model is obviously biased towards a fact-oriented view: not all conceptual models are" In this website, we use the term "conceptual model" within the universe of discourse called "object-role modeling" as defined by Terry Halpin in his 1989 thesis and in many subsequent ...
    Posted to Contributed Models (Forum) by Ken Evans on Fri, Oct 26 2018
  • Re: Question about join constraints and paths

    Inter-predicate role-path editing is not yet implemented in NORMA for VS2017. Yesterday,  Terry added some clarification to the role path editing issue. This is the relevant part of what he said.NORMA for VS2017 automatically infers the join path for unambiguous cases (e.g. Figure 10.4 of the "Big Brown Book", and in your example, ...
    Posted to Contributed Models (Forum) by Ken Evans on Fri, Oct 26 2018
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