IT Central Station is now PeerSpot: Here's why

erwin Data Modeler (DM) Valuable Features

David Jaques-Watson - PeerSpot reviewer
Senior Consultant at a tech services company with 11-50 employees

Being able to point it to a database and then pull the metadata is a valuable feature. Another valuable feature is being able to rearrange the model so that we can display it to users. We are able to divide the information into subject areas, and we can divide the data landscape into smaller chunks, which makes it easier to understand. If you had 14 subject areas, 1,000 entities, and 6,000 columns, you can't quite understand it all at once. So, being able to have the same underlying model but only display portions of it at a time is extremely useful.

I am currently trying to compare and synchronize data sources with data models, and it is pretty good. It shows you all the differences between the two systems. After that, it is a matter of what you want to do with them. It is certainly helpful for bringing models in and being able to compare. At the moment, I'm comparing something that's in a database with something that was in the DDL statement. So, these are two different sets of sources, and I can bring different sources together and compare them in the one, which is really helpful.

View full review »
Pam Rivera - PeerSpot reviewer
Independent Consultant at a tech consulting company with 1-10 employees

I do like the whole idea of being able to identify your business rules. In my last position, I got acquainted with using it for data lineage, which is so important now with the current regulatory environment because there are so many laws or regulations that need to be adhered to. 

If you're able to show where the data came from, then you know the source. For example, I was able to use user-defined properties (UDPs) on one job where we were bringing in the data from external XML files. I would put it at the UDP level, where the data came from. On another job, we upgraded a homegrown database that didn't meet our standards, so we changed the naming standards. I put in the formally known UDPs so I could run reports, because our folks in MIS who were running the reports were more familiar with the old names than the new names. Therefore, I could run the report so they could see, "This is where you find what you used to call X, and it is now called Y." That helped. 

The generation of DDL saved us having to write the steps by hand. You still had to go in and make some minor modifications to make it deployable to the database system. However, for the data lineage, it is very valuable for tracing our use of data, especially personal confidential data through different systems.

Complete Compare is good for double checking your work, how your model compares with prior versions, and making sure that your model reflects the database design. At my job before my last one, every now and then the DBAs would go in and make updates to correct a production problem, and sometimes they would forget to let us know so we could update the model. Therefore, periodically, we would go in and compare the model to the database to ensure that there weren't any new indexes or changes to the sizes of certain data fields without our knowing it. However, at the last job I had, the DBAs wouldn't do anything to the database unless it came from the data architects so I didn't use that particular function as much.

If the source of the data is an L2TP system and you're bringing it into a data warehouse, erwin's ability to compare and synchronize data sources with data models, in terms of accuracy and speed, is excellent for keeping them in sync. We did a lot of our source to target work with Informatica. We used erwin to sometimes generate the spreadsheets that we would give our developers. This was a wonderful feature that isn't very well-known nor well-publicized by erwin. 

Previously, we were manually building these Excel spreadsheets. By using erwin, we could click on the target environment, which is the table that we wanted to populate. Then, it would automatically generate the input to the Excel spreadsheet for the source. That worked out very well.

View full review »
Beverly King De Loach - PeerSpot reviewer
Architecture Manager at CIGNA Corporation

The product itself is fantastic and it's about the only way to get an enterprise view of the data that you're designing. It's a design tool, obviously. Once you add the API to that where you can automate things, you can make bulk changes. You can integrate your data from erwin into another in-house application that doesn't have access to the data because the erwin data is encrypted. It's been quite a boon to us because we're very heavy into automation, to have the ability to create these ad hoc programs, to get at the data, and make changes on the fly. It's been a wonderful tool.

A data modeling case tool is a key element if you are a data-centric team. There is no way around it. It's a communication tool. It's a way of looking at data and seeing visually how things fit together, what is not going to fit together. You have a way of talking about the design that gets you off of that piece of paper, where people are sitting down and they're saying, "Well, I need this field and I need that field and we need the other field." It just brings it up and makes it visible, which is critical.

View full review »
Buyer's Guide
erwin Data Modeler (DM)
June 2022
Learn what your peers think about erwin Data Modeler (DM). Get advice and tips from experienced pros sharing their opinions. Updated: June 2022.
607,178 professionals have used our research since 2012.
Sr. Data Engineer at a healthcare company with 10,001+ employees

Its visualization is the most valuable feature. The ability to make global changes throughout the data model. Data models are reasonably large: They are hundreds, and in some cases thousands, of tables and attributes. With any data model, there are many attributes that are common from a naming perspective and a data type perspective. It is possible with erwin to make global changes across all of the tables, columns, or attributes, whether you are doing it logically or physically. Also, we use it to set naming standards, then attempt to enforce naming standards and changes in naming from between the logical version of the data models and the physical versions of the data models, which is very advantageous. It also provides the ability to document primary/foreign key relationships and standardize them along with being able to review conceptually the data model names and data types, then visualize that across fairly large data models.

The solution’s visual data models for helping to overcome data source complexity and enabling understanding and collaboration around maintenance and usage is very important because you can create or define document subject areas within enterprise data models. You can create smaller subsets to be able to document those visually, assess the integrity, and review the integrity of the data models with the primary clients or the users of the data. It can also be used to establish communications that are logically and conceptually correct from a business expert perspective along with maintaining the physical and logical integrity of the data from a data management perspective. 

View full review »
Data Modeler at a government with 10,001+ employees

The automatic build to the physical is a really nice feature. I like the fact that it will bring the keys down from one table to the next, from a parent to child table. Those two things make erwin a very easy to use product. 

It's a safeguard for me because I'm always concerned that somebody is free handing it and will forget a key coming from the parent. The migrating keys are a great feature. Identifying relationships, non-identifying relationships, and being visually right there to understand the differences are great features.

erwin is key to being able to visually understand whatever the customer is requesting. They'll give you words on a paper, but once they can actually view it as a picture, it really comes to life. The data comes to life to where they understand exactly what they're asking for.

View full review »
Director of BI & Analytics at a logistics company with 10,001+ employees

It allows us to create logical data models. We can represent a database model in business terms, which is very useful for us. 

It supports a wide variety of databases, including the latest ones. We have chosen to go for a cloud-based database, and it supports that, which is very useful. 

It is very useful for maintaining relationships between tables. We can put constraints and foreign key-primary key relationships into the model, and it gets translated into the physical database seamlessly. 

Workgroup is another useful feature to store and share the models with the team for collaboration. 

View full review »
Mike Matthews - PeerSpot reviewer
IT Specialist at a government with 10,001+ employees

The modeling portion of the tool is the most valuable. There are some notes, naming standards, and other functions that we use as well. There's a whole boatload of functionality in this thing and we use maybe 10% of it. It seems to be pretty common that not all the functionality is fully utilized. But it's got gobs and gobs of stuff that you can implement if you so choose to.

We've definitely expounded on the amount of features we use. They've built in some automated naming standards that have been really helpful for us. That's probably the biggest leap we've used. We've always used the comments and notes features, but the automated naming features have been very helpful.

Its ability to overcome data source complexity and enabling understanding and collaboration around maintenance and usage is extremely helpful because they give a visual to not only developers and database administrators, but the user base themselves. So the typical user isn't going to understand database functionality. Being able to show them a picture of how their data is actually going to look in the database is very helpful for their understanding of what we're trying to do with their data.

erwin's ability to compare and synchronize data sources with data models in terms of accuracy and speed for keeping them in sync is very good. We utilize that service quite a bit. The one drawback is if you have an extremely large complex model, the compare process can take quite a bit of time, more than four hours. 

Its ability to generate database code from a model for a wide array of data sources cuts development time. The fact that you can generate the DDL correctly from the model saves us a bunch of time. I would say it saves us around 40% to 50%. So even though you can generate the DDL, you still have to go in and tweak it a little bit. 

View full review »
Technical Consultant at a insurance company with 1,001-5,000 employees

I think the ability to depict the model in a graphical fashion, think about it, and keep things consistent is what's valuable about it. It's too easy when you're using other methods to not have naming consistent standards and column consistent definitions, et cetera.

This isn't specific to Erwin, it's specific to any data modeling tool but we also like:

  • The ability to graphically depict how the relationships occur and the relationship lines.
  • The fact that it migrates your foreign keys for you.
  • The general principles of what a data modeling tool does. 

Erwin does a lot of things well. It's just very frustrating in some areas that really should not be frustrating.

The people who don't use a data modeling tool but rather use spreadsheets or wing it typically have pretty poor data models. If you use a data modeling tool, the graphical nature of the data modeling tool forces you to think about relationships. It forces you to ask questions that you wouldn't ask if you were just creating tables and doing it off the top of your head. That's number one, in my opinion, from my own experience. The number one benefit of using a tool like Erwin, is that visual representation forces you to come up with a better model.

Its ability to generate database code from a model for a wide array of data sources is useful but we're 99% SQL Server, so the fact that it generates 60 other databases doesn't really help me too much. It doesn't support Postgres or Redshift which are the two other systems that we're using. 

View full review »
Ruby Perle - PeerSpot reviewer
Senior Data Architect at a financial services firm with 10,001+ employees

The most valuable features of the Workgroup Edition are the

  • centralization of the models
  • flexibility of the directory structure
  • application of the naming standards across all models in the repository.

The centralization of models helps share models across the organization. Instead of having to email someone and say, "Hey, where did you put the model for this?" it's easily found. It also makes it easy to organize models. When you work in a large organization that has more than 1,000 models, you need to be able to organize them in some fashion.

Historically, the Workgroup Edition had a flat structure so you had to name a model in a particular way to be able to find it, when you had thousands of models. With the current version, because you have a flexible directory, you can organize your models any way that your organization feels would work well.

In addition, the visualization side of erwin really helps people to understand the structure of their data. It greatly enhances their ability to create the appropriate modifications to their existing structure, because they can graphically see how their structure is currently laid out. It helps with maintenance on existing applications, and it dramatically helps, when you're doing greenfield, in understanding your data requirements in a graphical format. The graphical aspect helps non-technical people to understand the database design. For the non-technical folk, it is very helpful for understanding the design and whether or not the design is meeting their requirements.

For anyone who's interested in the data design of an application, or a warehouse, the erwin Data Modeling tool is very helpful. That's especially true for people who don't understand the structure of databases. It helps them understand the relationships between tables, and what is contained within a table. It's an understanding that they don't have without this kind of product.

View full review »
Tracy Hautenen Kriel - PeerSpot reviewer
Architecture Sr. Manager, Data Design & Metadata Mgmt at a insurance company with 10,001+ employees

We use the diagrams and data dictionary capabilities to help users understand the data environments, as well as how the data relates to each other. We'll use the naming standard master file to govern and ensure that we have consistent naming and abbreviations across and within data stores. We use the forward engineering templates to standardize and govern the generation of the data definition language that is used to actually make the changes to the data stores. We also use the Compare capability to ensure that we have up to date production data models. And we are looking forward to the integration of the Data Modeler metadata with the data intelligence suite in R2.

The visual data models for helping to overcome data source complexity and enabling understanding and collaboration around maintenance and usage are excellent. A picture speaks 1,000 words. Seeing a picture that shows you how the data relates to each other helps you better understand what the data is and how to use it. Pairing that information with a dictionary, which has the definitions of the tables, columns, the entities, and attributes, ensures that the users understand what the data is so that they can use it best and most successfully.

Its ability to compare and synchronize data sources with data models in terms of accuracy and speed for keeping them in sync is excellent. 

We don't typically use the configurable workspace and modeling canvas because while the platform allows for the flexibility to dynamically include multiple colors and multiple themes, feedback from business users is that the multiple colors and themes can become overwhelming. When you do that, you need to include a key so that people understand what the colors mean.

Its ability to generate database code from a model for a wide array of data sources cuts our development time. By how much depends on the number of changes that are required within the data store. It is certainly better to automate the forward engineering of the DDL creation, rather than having someone manually type it all out and then possibly make a human error with spelling irregularities.

Its code generation ensures accurate engineering of data sources. It decreases development time because it's automated.

View full review »
Senior Data Warehouse Architect at a financial services firm with 1,001-5,000 employees

Primarily, we use erwin for data modeling only, the functionality which is available to do logical models and the physical model. Those are the two areas which we use the most: we use a conceptual model first and the logical model, and then the physical model.

When we do the conceptual data model, we will look at the source and how the objects in the source interact, and that will give us a very clear understanding of how the data is set up in the source environment. The logical model gives developers, as well as the data modelers, an understanding of exactly how each object interacts with the others, whether a one-to-many, many-to-many, many-to-one, etc. The physical model, obviously, helps in executing the data model in Snowflake, on the physical layer.

Compatibility and support for cloud-based databases is very important in our environment because Snowflake is the only database to which we push our physical data structures. So any data modeling tool we use should be compatible with a cloud data warehouse, like Snowflake. It is definitely a very important functionality and feature for us.

View full review »
Richard Halter - PeerSpot reviewer
President at a tech services company with 51-200 employees

erwin is pretty easy. I've been using it for so long it's like second nature. 

The visual data models are pretty easy for helping to overcome data source complexity and enabling understanding and collaboration around maintenance and usage. It's easy to add, change, and update things. We get feedback from retailers. For example, somebody wants to update something in the item area, they want to use a new item identifier and it's just a matter of going in and adding it to the numerations for that. Or somebody might come in and say, "We're using a little bit of a different pricing model so we need to add this information into the pricing area." Or people will say "We need to add Bitcoin," so we can go in and add Bitcoin and the attributes you need to support it and do it very easily. At this point, we're not adding new capabilities, we're simply expanding existing ones.

View full review »
Scott Pennah - PeerSpot reviewer
Data Architect at Teknion Data Solutions
  • Being able to manage the domains.
  • Ability to standardize our data types and some common attributes, which was pretty powerful. 
  • The Bulk Editor: I could extract the metadata into Excel (or something) and be able to make some mass changes, then upload it back.

We use the macros with naming standards patterns, domains, datatypes, and some common attributes. As far as other automations, a feature of the Bulk Editor is mass updates. When it sees something is nonstandard or inaccurate, it will export the better data out. Then, I can easily see which entities and attributes are not inline or standard. I can easily make changes to what was uploaded to the Bulk Editor. When taking on a new project, it can save you about a half a day on a big project across an entire team.

View full review »
Jose Luis Leon - PeerSpot reviewer
Data Management & Automation Manager at a consultancy with 11-50 employees

The ability to collaborate between different members across the organization is the most valuable feature. It gives us the ability to work on the same model, regardless of where we are physically.

I like the accuracy. It is very precise.

View full review »
Software Engineer Staff at a manufacturing company with 10,001+ employees

It provides flexibility with the code. You can change the code as you want. Basically, you can change SQL based on what's best for your project.

View full review »
Jose Luis Leon - PeerSpot reviewer
Data Management & Automation Manager at a consultancy with 11-50 employees

The most valuable features are the ability to reverse engineer and do model comparison. With the reverse engineering, I can understand the databases from third-party products. With the model comparison, I can track the differences between two versions of the same database.

Because I can graphically see the Modeler database, that is very helpful for my job as it helps me understand the database. It is very different from SQL and DML scripts, which are very hard to understand with just sentences. When we have a graphic, that is very helpful. We can save time understanding that database.

I like the synchronization ability a lot because it can tell me to apply some level of governance to my models. I can be sure that the model in my documentation or development environment matches with the database that is working in our production environment. It is accurate. Though, it is not always fast when we have dozens of tables, but it works. I wait about an hour in order to have a big database synchronized.

The solution’s code generation ensures accurate engineering of data sources. It avoids rework.

View full review »
Lead Data Architect at a tech services company with 1,001-5,000 employees

They have a lot of features and the most up-to-date technology integration, which I haven't seen in other products.

In terms of features, I believe they were doing very well in the latest technologies as well.

View full review »
Chief Consultant at a tech services company with 51-200 employees

This product is the strongest data modeler on the market.

It has centralized storage so that a data model can be shared by different teams.

View full review »
Buyer's Guide
erwin Data Modeler (DM)
June 2022
Learn what your peers think about erwin Data Modeler (DM). Get advice and tips from experienced pros sharing their opinions. Updated: June 2022.
607,178 professionals have used our research since 2012.