2020-01-22T10:49:00Z

What needs improvement with erwin Data Modeler (DM)?


Please share with the community what you think needs improvement with erwin Data Modeler (DM).

What are its weaknesses? What would you like to see changed in a future version?

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77 Answers

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When I need to stretch an entity in order to add new relationships the diagrammer should not move the existing relationship lines and put elbows in them.

2020-08-06T15:37:06Z
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Top 10LeaderboardReal User

Complete Compare is not user-friendly. For example, the save known changes as snapshot does not work as expected. We are unable to find the exported files in our workstations at times. Complete Compare is set up only to compare properties that are of interest to us, but some of the differences cannot be brought over from one version of the model to another. This is despite the fact that we are clicking to bring objects from one place to another. Therefore, it's hard to tell at times if Complete Compare is working as intended without having to manually go into the details and check everything. If it could be redesigned to a degree where it is easier to use when we bring things over from one site to another and be sure that it's been done correctly, that would be nice to have. We would probably use the tool more often if the Complete Compare were easier to use. The client performance could be improved. Currently, in some cases, when we delete entities it causes the program to crash. Similarly, for Mart's performance, we need to reindex the database indexes periodically. Otherwise browsing through the Mart, trying to open up or save a data model takes unusually long. There are several bugs we discovered. If those were fixed, that would be a nice improvement. We encounter model corruption over time, and it is one of those things that happens. There is a fix that we run to repair this corruption by saving the model as an XML file or to the Complete Compare tool. If this process could somehow be automated, having erwin detect when a model is corrupted and do this process on its own, that would be helpful. There are several Mart features that could be added. E.g., a way to automatically remove inactive sessions older than a specified date. This way we can focus on seeing which users have been utilizing our central repository recently, as opposed to seeing all of what happened since five years ago. This would be less of a problem if the mart administrator did not have trouble displaying all of the sessions. On the client side, there are some features that would come in handy for us, e.g., Google Cloud Platform support or support for some of the other cloud databases. If we had a better way to connect and reverse engineer the databases into data models, that would help us. Alter scripts can be troublesome to work with at times. If they can be set up to work better, that would help. On the Forward Engineering side of things, by default, the alter syntax is not enabled when creating alter scripts. We strongly believe this is something that should be enabled by default. On the Naming Standards (NSM) side of things, there is a way in erwin to translate logical names into physical names based on our business dictionary that we created. However, it would be nice if we could have more than one NSM entry with the same logical element name based on importance or usage. Also, if erwin could bring in the definitions as part of the NSM and into a model, then we could use those definitions on entities and attributes. That would be beneficial.

2020-04-13T06:27:00Z
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Top 5LeaderboardReal User

The modeling product itself is far and above anything else that I've seen on the market. There are certain inconsistencies when it comes to keeping up with other platforms' databases in the reverse-engineering process. It should also support more database platforms. There should also be improvements to capture erwin models in third-party products, for example, data catalogs and things of that nature, where the vendors have to be more aware of the different releases of product and what they support during that type of interaction. Instead of being three or four releases behind from one product to another, the products should become more aligned with each other. So if you're using an Erwin model in a data catalog, you should be able to scan that model based on the level of the Erwin model. If the old model is a certain release, the capture of that should be at the same release.

2020-03-22T06:49:00Z
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Top 5LeaderboardReal User

I would like to see improved reporting and, potentially, dashboards built on top of that. Right now, it's a little manual. More automated reporting and dashboard views would help because currently you have to push things out to a spreadsheet, or to HTML, and there aren't many other options that I know of. I would like to be able to produce graphs and additional things right in the tool, instead of having to export the data somewhere else. And that should work in an intuitive way which doesn't require so much of my time or my exporting things to a spreadsheet to make the reporting work.

2020-02-13T07:51:00Z
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Top 10LeaderboardReal User

Some Source official systems give us DDLs to work with and they have contents not required to be part of the DDL before we reverse engineer in the erwin DM. Therefore, we manually make changes to those scripts and edit them, then reverse-engineer within the tool. So, it does take some time to edit these DDL scripts generated by the source operational systems. What I would suggest: It would be helpful if there were a place within the erwin tool to import the file and automatically eliminate all the unnecessary lines of code, and just have the clean code built-in to generate the table/data model.

2020-02-02T10:42:00Z
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Top 5LeaderboardReal User

One of the things I've been talking to the erwin team about through the years is that every data model should have the ability to be multi-language. So along with the fact that I can change, for example, the graphic of the model to look at just the definitions in boxes, or just the key structures in the boxes, I'd love to be able to change the language. When I was working at Honda, it became very difficult to work with the Japanese teams using just one model. You can have two models, one in English and one in Japanese, but that means you have to keep the updates back and forth, and that always increases the risk of something not being updated. The world is getting to be a very small place, and being able to have one file that has all of that metadata in whatever form you need to read it, is the best way to manage that data. That would be a big change for them and it would be a big change to the Mart structure. It would be a one-to-many on the logical side of the business names, but it would also a one-to-many on the definition side of the tables and the columns and everything else, where you can have notes. I know that it's a big change I'm asking for, and they've had to put it off a little bit, but their business glossary tool now kind of looks at it that way. I'm hoping that the erwin model itself will be able to allow for that in the future.

2020-01-27T06:40:00Z
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Top 5LeaderboardReal User

I would like to see more support for working with the big-data world. There are so many new databases evolving and it's very hard for them to keep up with all of the new technologies. It would be good if they were able to dynamically support big-data platforms, other than Hive and Teradata. There's a new release coming out this year and they're adding two more platforms in that next release. So they are striving to keep up with technology, but technology is just evolving too rapidly. There are just too many options.

2020-01-22T10:49:00Z
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