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Job - definitions

job - [computing] A task scheduled on a computer for immediate or future processing. A job can involve a single task or a batch mode operation.

[Category=Geospatial ]

Source: esri, 23 May 2012 08:31:49, External 

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job - In certain computer operating systems, a job is the unit of work that a computer operator (or a program called a job scheduler) gives to the operating system. For example, a job could be the running of an application program such as a weekly payroll program. A job is usually said to be run in batch (rather than interactive) mode. The operator or job scheduler gives the operating system a "batch" of jobs to do (payroll, cost analysis, employee file updating, and so forth) and these are performed in the background when time-sensitive interactive work is not being done. In IBM mainframe operating systems (MVS, OS/390, and successors) a job is described with job control language (JCL). Jobs are broken down into job steps. An example of a job step might be to make sure that a particular data set or database needed in the job is made accessible.

Typically, the development programmer who writes a program that is intended to be run as a batch job also writes the JCL that describes for the operating system how to run the job (for example, what data sets or databases it uses). The use of a job scheduler usually provides greater flexibility and the ability to monitor and report batch job operations.

A similar term is task, a concept usually applied to interactive work. A multitasking operating system serving one or more interactive users can at the same time perform batch jobs in the background.

Related glossary terms: Enterprise System Connection Architecture (ESCON), z990 (T-Rex), zAware, hard drive overwriter, screen scraping

[Category=Data Management ]

Source:, 19 August 2013 08:44:55, External




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