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    <p>In reference to the <a href="http://www.anchormodeling.com/modeler/latest/?page_id=112" rel="noreferrer"><strong>anchormodeling.com</strong></a></p> <p>Here are a few points I am aware of</p> <ol> <li><p>The number of DB-objects is simply too large to maintain manually, so make sure that you use designer all the time to evolve the schema.</p></li> <li><p>Currently, designer supports fully MS SQL Server, so if you have to port code all the time, you may want to wait until your target DB is fully supported. I know it has Oracle in dropdown box, but ...</p></li> <li><p>Do not expect (nor demand) your developers to understand it, they have to access the model via 5NF views -- which is good. The thing is that tables are loaded via (instead-of-) triggers on views, which may (or may not) be a performance issue.</p></li> <li><p>Expect that you may need to write some extra maintenance procedures (for each temporal attribute) which are not auto-generated (yet). For example, I often need a prune procedure for temporal attributes -- to delete same-value-records for the same ID on two consecutive time-events. </p></li> <li><p>Generated views and queries-over-views resolve nicely, and so will probably anything that you write in the future. However, "other people" will be writing queries on views-over-views-over-views -- which does not always resolve nicely. So expect that you may need to police queries more than usual.</p></li> </ol> <p>Having sad all that, I have recently used the approach to refactor a section of my warehouse, and it worked like a charm. Admittedly, warehouse does not have most of the problems outlined here.</p> <p>I would suggest that it is imperative to create a demo-system and test, test, test ..., especially point No 3 -- loading via triggers.</p>
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    1. USRoss Rogers
    1. USDamir Sudarevic
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