What is SCLM?

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Anuj Dhawan
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What is SCLM?

Post by Anuj Dhawan » Wed May 29, 2013 8:38 pm

SCLM is the Software Configuration and Library Manager component of ISPF which runs on z/OS®. It was first introduced with Version 3 of ISPF and was an upgrade to a previous component called LMF (Library Management Facility) that was introduced in version 2 of ISPF. It is a component of MVS, OS/390 and z/OS operating systems/platforms. According to IBM the Software Configuration and Library Manager (SCLM) consists of two products: a library manager and a configuration manager

It provides the source code management and build facilities of a software configuration manager (SCM). For example, SCLM supports Check out and Check in functions. SCLM provides a pessimistic locking model so that concurrent editing functions cannot be performed on a locked SCLM member. SCLM also provides build functions and a development hierarchy so that code, as it is developed and tested, can be promoted up to the next level of development. Such a hierarchy can exist in a tree structure as shown in the following figure. Other projects might have additional levels.


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