draw.io vs. IBM Rational System Architect Designer

draw.io can be more suitable for technical documentation for architectures, flow diagrams/charts, and conceptual images of an application infrastructure. However, this tool is not made for business intelligence work nor for dashboarding to monitor the technical components. From the administrative standpoint, this is not well suited for agile ceremony structures like retrospective boards or planning or even quarterly planning boards. The strength of draw.io lies strongly in being a lightweight diagramming tool.

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If you need a whole infrastructure and architect view, IBM Rational System Architect is the way to go. If you need a single diagram or your business process is young enough to support hard documenting, you are fine with an open source tool.

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• Draw.io offers a lot of shapes and customizability of how the diagrams are laid out. We've been able to create a lot of different things with it, and have barely scratched the surface of the sorts of things that we could do.
• Draw.io is fairly intuitive in the way that you draw shapes and connect shapes together, I was able to figure it out without a tutorial.
• Draw.io is fast and performant for me compared with some of the alternatives.

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• MS Office exporting
• UML modeling
• Transformation to code
• A reverse transformation from code
• Integrates with other IBM products

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• When very elaborate diagrams are needed, it lacks the amount of tools and customization needed
• Since this is an online tool, it can freeze and that causes you to lose that work up to that point
• Performance can lag with very complex diagrams

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• Always has a price. And IBM is not cheap
• Sequence diagrams can get messy (still has a good UI)
• Only support few databases as backend repositories like SQL Server and Oracle

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The UI is intuitive. It allows a new user to start diagramming almost instantly. Manipulating elements, linking them together, etc. are all easy to do. Draw.io nevertheless a broad variety of diagram templates to help get started and also of shapes to use in diagrams. Some situations can make it a bit tricky to use, such as when having multiple shapes on top of each other (e.g. shapes placed within swimlanes) but that's a minor issue.

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The support for draw.io is pretty decent, considering it is a free website. I had a question one time when I was trying to do something, so I sent an email to their support email and got a response fairly quickly with an answer to my question. They also have some excellent support tools on their support website for helping you get more familiar with their program, and I found that very helpful.

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Independently Invited by TrustRadius

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draw.io is open-source and free for many uses, which means minimal upfront cost and good value.It works in the browser, also has a desktop version (so you can use offline) which helps teams that may not always be online or want local backups. Useful when you want a diagram tool that “just works” without huge ecosystem lock-in.For organisations that value control, less vendor-dependency, this is a plus.

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If you have a budget or the need for a complex modeler or need diagram transformation to code or vice-versa, IBM Rational System Architect is the way to go. If you need few diagrams or don't need the complexity or don't have a budget, Bizagi or Star UML get the things done.

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• draw.io has surely impacted our organization positively by saving some crucial time.
• It has not really impacted much monetarily to be honest.
• The ROI we got from draw.io is that it has made complex things clear for everyone in our organization.

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• Clients like good modeling. A good diagram reduce costs in incidents and doubts of bad interpretations
• Reduce costs of recognition of old software.

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Independently Invited by TrustRadius

A de minimis incentive was given to thank the reviewer for their time. The incentive was not used to bias or drive a particular response, nor was the incentive contingent on a positive endorsement. More Info