After completing this course, the student should be able to:
 

	Identify the characteristics of both instream and cataloged procedures
	State the rules that cover coding procedures
	Explain what occurs with procedures at execution time
	Identify the use of symbolic parameters with procedures
	Describe considerations involved when overriding procedures
	Explain how to modify parameters on the procedure's EXEC statement

Introduction
Defines an example jobstream that is used throughout the course.  Summarizes the differences between instream and cataloged procedures.
 

	Purpose of JCL procedures
	Resources needed to compile a COBOL program
	Purpose of the JOB, EXEC and DD statements
	Proper coding of these statements
	Instream versus cataloged procedures
	Conditions under which each type of procedure is used
	INCLUDE groups and the INCLUDE   statement

Definition
Deals with the PROC, PEND and EXEC statements.  Presents rules for instream and cataloged procedures.
 

	Purpose of PROC, PEND and EXEC statements
	Six rules for coding an instream procedure
	Six rules for coding a cataloged procedure
	JCLLIB statement

Execution
Shows how procedures are merged with other JCL.  Describes what the various types of procedure statements look like in the job output.
 

	How procedures are merged with other JCL
	What cataloged and instream procedure statements look like in the job output
	Purpose and use of JOB and PROC steps
	Potential problems when the example procedure is executed more than once
	Purpose of the DDNAME parameter

Symbolic Parameters
Describes the form and use of symbolic parameters.  Gives instructions for assigning values to symbolic parameters.  
 

	Coding EXEC statements that assign a value to a symbolic parameter at execution time
	Using SET statements to assign a  value to or define a symbolic parameter
	Areas in a job listing that deal with symbolic parameters
	Coding PROC statements used to supply default values to symbolic parameters
	Rules for assigning default values
	Using EXEC statements to nullify the value of a symbolic parameter
	The result when a value is nullified or not nullified
	Purpose and format of concatenated symbolic parameters
	Situations for concatenation
	Using symbolic parameters for commenting out existing JCL statements and adding new parameters or parameter values

Overriding Procedures
Outlines rules for overriding the DD statements in a cataloged procedure.  Describes what overrides look like on a job listing.  Discusses how to override a parameter on a procedure's DD statement and special DDname considerations when overriding.
 

	Purpose and result of overriding a DD statement
	Correct form for overriding DD statements
	How successful and unsuccessful overrides appear in your job listing
	Rules for overriding a parameter on procedure's DD statement
	Correct format and placement of DDnames when overriding procedure statements

Modifying Parameters on an EXEC Statement
Covers the modification of EXEC keyword parameters.  
 

	Purpose and result of modifying keyword parameters on the EXEC statement
	Difference between qualified and unqualified overrides
	Format and use of qualified overrides for keyword parameters
	Required and suggested coding practices
	Format and use of unqualified overrides for keyword parameters
	Effects of REGION, PARM and TIME overrides
	Symbolic and keyword parameters in procedures COMPILE and COMPLINK
	Development of EXEC statements that accomplish desired modifications