Azure DevOps Server (formerly TMS) vs IBM Rational ClearCase

• The consolidation of issues is extremely useful for us. Having one place where all bugs are entered has helped our business process immensely.
• Being able to query data regarding user stories, bugs and code is extremely helpful. As well, using the visual tools built into the system can help with messaging regarding the status of a project.
• Being able to monitor code deployments is extremely helpful. Since we are managing multiple environments, this tool makes it easy to see what is happening where.

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• Rational ClearCase is excellent for handling versioning and branching. No other tool I've used has the depth that ClearCase has when it comes to handling complex branching scenarios and identifying where certain versions of particular files are within a particular configuration.
• Rational ClearCase handles parallel development of many dependent applications really well.
• The use of ClearCase Views to switch between projects and configurations is extremely convenient as opposed to the local workstation model of the competitors.

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• The older versions of TFS are more lacking in the web version-- if you aren't updated to 2015 or above I believe, a lot of the web features are not available (like bulk update). You really have to keep up to date with TFS for the best features, and it's no simple task to migrate your entire instance of TFS from an older version to a newer version.
• VSTS is supposed to be a virtual version of TFS that we've been looking into, but it severely limits customization options for ticket templates and workflows. It would be nice for VSTS to eventually carry that customization over so we could feel more comfortable switching to "the cloud" so to speak.
• Queries are a very powerful tool, but normal business users struggle to understand how they can best utilize this tool to analyze tickets. Because of the permissions structure in all companies I have been a part of, I've never been able to save my custom queries to a public folder in TFS for business/project users. Instead, I have to take time to train these users and give them guidance on how to best create queries for their needs. This is admittedly a business process issue, but it could potentially also be resolved with some good training/guidance around queries provided by TFS themselves.

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• Extremely buggy.
• Sometimes the repository gets locked for no reason.
• Slow.

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• Time to completion for projects has significantly gone down by 15% and that number changes as more people are trained and are comfortable with TFS.
• Change Management and Approvals are easier to access.
• More projects are implementing SCRUM methodologies for applications

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• Managed code versioning for many years.
• Only one person can edit code at a time - slows processing down.
• IBM is an expensive product to support.

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