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| developer = [[IBM]]
| released = {{Start date and age|1992}}
| latest_release_version = 11.0.0.
| latest_release_date = {{release date and age|
| latest_preview_version =
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| genre = [[Software configuration management]]
| license = IBM [[Software license|EULA]]
| website = {{URL|https://www.ibm.com/products/
}}
'''IBM DevOps Code ClearCase (also known as IBM Rational ClearCase)''' is a family of [[computer software]] tools that supports [[software configuration management]] (SCM) of [[source code]] and other [[software development]] assets. It also supports design-data management of electronic design artifacts, thus enabling hardware and software co-development. ClearCase includes [[revision control]] and forms the basis for configuration management at large and medium-sized businesses, accommodating projects with hundreds or thousands of developers. It is developed by [[IBM]].
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ClearCase also provides authoritative build auditing, which generates metadata for each build artifact, including the context of the build and a bill of materials of files (including the exact version) referenced during the build. This metadata can be used for generating SBOMs ([[Software Bill of Materials]]) and is important in regulated environments where artifact traceability is essential. ClearCase includes an implementation of 'make' that integrates with the authoritative build auditing mechanism to ensure build correctness without timestamps and automatic sharing of build artifacts across views (workspaces).
== History ==
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== Infrastructure ==
The [[database]] system that ClearCase uses is RDM Embedded from Raima. In ClearCase terminology, an individual database is called a ''VOB'' ('''V'''ersioned '''O'''bject '''B'''ase).<ref>{{Cite web |title=Versioned object bases (VOBs) |url=https://www.ibm.com/docs/en/clearcase/10.0?topic=administration-versioned-object-bases-vobs |access-date=2024-05-13 |website=www.ibm.com |language=en-us}}</ref> On this layer, maintenance takes place using Raima tooling. Around this layer, a set of interfaces with accompanying tools are used to manage the physical database system, which requires specific [[Database administrator]] skills.<ref>{{Cite news |title=IBM Rational ClearCase - Computer Science {{!}} Wiki eduNitas.com |url=https://wiki.edunitas.com/IT/en/114-10/IBM-Rational-ClearCase_19336_eduNitas.html |access-date=2024-05-13 |work=edunitas.com |language=id-ID |archive-date=2024-05-13 |archive-url=https://web.archive.org/web/20240513111854/https://wiki.edunitas.com/IT/en/114-10/IBM-Rational-ClearCase_19336_eduNitas.html |url-status=dead }}</ref>
The most important service is the Atria ___location Broker Daemon (ALBD), which manages all (LAN) communication between computers. Beginning with version 7, the server platform runs Websphere Application Server with a server application called the Change Management Server (CM Server), which served ClearCase clients via the HTTP Protocol. (Before version 7 there was a web service by which users could access ClearCase via their browsers.) CM server has since been replaced by the ClearCase Remote Client Wide-Area Network Server (CCRC WAN server), which continues to be based on Websphere Application Server.
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