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Die Punch:

The sheet-metal blank is placed in a punching die, where a pattern of holes is punched simultaneously with one storke of the punching pres. The high-tonnage brake pres is often used to provide the power stroke required on the punching die block.

(Ronald A. Walsh, Electromechanical Design HandBook, page 10)

Strippit Punch:

The sheet –metal blank is punched one hole at a time on Strippit Punch press. The punching dies may be quickly changed for punching different size sor shapes of holes, such as round, square, rectangular, oval or obround or other special shapes for which the dies are designed.

(Ronald A. Walsh, Electromechanical Design HandBook, page 10)

Average Job Lateness:

Average job lateness is one of many performance measures used in evaluating rules used for sequencing work orders awaiting processiing at one or more work centers. Such rules are called job sequenching rules. Average job lateness criterion, given the jobs on hand and the machine resources available, attemps to maximize customer satisfaction by reducing late deliveries of orders. Other criterion employed for sequencing jobs may focus on improving operational efficiency of the system by reducing inventory.

(Paul M. Swamidass, Encyclopedia Of Production And Manufacturing Management, page 53)

The  Application Enablers:

Application programs interact directly with the operating system to perform different tasks such as reading and writing disk storage or sending information over a communications network. The interaction between the operating system and application programs takes place through the Application Programming Interface(API) presented by operating system. Program products, called application enablers, extend the API presented by the operating system. Application enablers add function to the API, thus offering more services to application programs. (As the figure shows) Application enables reside between the operating system and the application program layers of our software model, and they actively communicate with both layers.

(Jim Hoskins, Bob Frank, Exploring IBM Eserver Zseries And S/390 Servers, page 193-196)