- 行业: Computer
- Number of terms: 98482
- Number of blossaries: 0
- Company Profile:
Sometimes referred to as “Big Blue” IBM is a multinational corporation headquartered in Armonk, New York. It manufactures computer hardware and software and provides information technology and services.
(1) In a window or dialog box, a rectangular control that, when clicked, immediately causes an action to be performed. Push buttons can be labeled with text, graphics, or both. The most familiar push buttons are OK and Cancel.<br />(2) A key on a telephone key pad.
Industry:Software
(1) A variable used to pass information, such as a file name, for use in a message.<br />(2) In pseudo-JCL, a symbol that is used in a build script and that receives a value from a build server default, from the build script itself, or from a symbolic parameter.<br />(3) A variable in a procedure or query whose value is specified either by a global variable or by a runtime variable.<br />(4) A variable in a form whose value is specified by a global variable.
Industry:Software
(1) In CICS, an index based on an alternate key. It allows the file to be processed in a secondary key order.<br />(2) For VSAM key-sequenced data sets and entry-sequenced data sets, an index of alternate keys that provides a path for secondary access to the data set. If the records have alternate keys, the alternate index is built when the data set is created. See also secondary index.<br />(3) A subordinate index in a hierarchy of indexes.<br />(4) In z/OS Virtual Storage Access Method (VSAM), a collection of index entries related to a given base cluster and organized by a key other than the prime key of the associated, base-cluster, data records. An alternate index provides an alternate directory for locating records in the data component of a base cluster.
Industry:Software
(1) In the OSI reference model, a layer that provides services to the next higher layer.<br />(2) In System Manager, the system used to provide problem-handling support to another system or systems connected to it by communications lines. The service provider can also be the alert focal point in a network. See also service requester.<br />(3) Any company that provides services for a fee to its customers, such as telecommunication companies, application service providers, enterprise IT, and Internet service providers.<br />(4) A company or program that provides a business function as a service. The service provider receives messages from a service requester and runs the requested service. The service provider might also send messages in reply to the request.
Industry:Software
(1) A view-only scalable partition.<br />(2) In CICS/VSE, a partition, defined at IPL time and occupying a defined amount of virtual storage that remains constant. See also dynamic partition.
Industry:Software
(1) In CICS/VSE, a range of up to two gigabytes of contiguous virtual storage addresses that a program can use as workspace. Although the virtual disk exists in storage, it appears as a real FBA disk device to the user program. All I/O operations directed to a virtual disk are intercepted and the data to be written to, or read from, the disk is moved to or from a data space. Like a data space, a virtual disk can hold only user data; it does not contain shared areas, system data or programs. Unlike an address space or a data space, data is not directly addressable on a virtual disk. To manipulate data on a virtual disk, the program has to perform I/O operations.<br />(2) A device that host systems attached to the storage area network (SAN) recognize as a Small Computer System Interface (SCSI) disk.
Industry:Software
(1) In advanced program-to-program communications, the amount of processing that is started directly or indirectly by a program on the source system. See also unit of recovery.<br />(2) A recoverable sequence of operations performed by an application between two points of consistency. A unit of work begins when a transaction starts or at a user-requested syncpoint. It ends either at a user-requested syncpoint or at the end of a transaction.<br />(3) For IMS DB, all of the input and output messages associated with a transaction. For IMS TM, a single IMS message. For CQS, a client-defined grouping of data objects.<br />(4) A recoverable sequence of operations within an application process. At any time, an application process is a single UOW, but the life of an application process can involve many UOWs as a result of commit or rollback operations. In a multisite update operation, a single UOW can include several units of recovery. See also multisite update, unit of recovery, remote unit of work, transaction.
Industry:Software
(1) A virtual private network (VPN) connection that automatically refreshes the keys that keep data secure. A dynamic connection also contains proposals that allow the key server to negotiate which parameters to use with the remote key server. See also manual connection.<br />(2) A connection created at the time of sign-on or using the network connection control (NCC) record sent from another node.
Industry:Software
(1) In the C and C++ languages, a description that makes an external object or function available to a function or a block statement.<br />(2) A statement that establishes the names and characteristics of data objects and functions used in a program.<br />(3) In Java programming, a statement that establishes an identifier and associates attributes with it, without necessarily reserving its storage or providing the implementation. (Sun)
Industry:Software
(1) A virtual storage area that provides the control, scheduling, and work management mechanisms necessary to coordinate shared resources.<br />(2) The MVS main storage region that contains the IMS control program.
Industry:Software
