CORCAS: Identify and Report Core Sets of Cases

Last updated 18 Nov 97

CORCAS compares the cases who perform different modules (groups of tasks). It determines the "core" set of cases which perform each module based on the average task importance in the module for each case. CORCAS uses the Case Title file created by MAKCFL to describe the core cases.

Program Invocation

The specific syntax for program invocation varies between operating systems. This document diplays the code for the AIX version.


@codap corcas <opt> <ssss> <icd> <ict> <itf> <itt>

opt:      Program Options (none currently supported)
ssss:     The study number 
icd:      Input Case Data file
ict:      Input Case Title file
itf:      Input Task Factor file (contains task clusters)
itt:      Input Task Title file

CORCAS Control Card


CORCAS <study> <title>

CORCAS:   cc 01-06  The literal 'CORCAS'
study:    cc 08-11  The study number for this run
title:    cc 13-72  The report title for this run.

CUTOFF Control Card (optional)


CUTOFF <ncut> <pmpcut> <aticut>

CUTOFF:   cc 01-06  The literal 'CUTOFF'
ncut:     cc 08-11  Maximum number of core cases to report for each module
                    (default = 96).
ptpcut:   cc 13-16  Minimum percent of tasks performed in the module to be
                    considered a core case (default = 33.3)
aticut:   cc 18-21  Minimum average task importance in  the  module to be
                    considered a core case (default = 50.0)

Module Selection Cards

These cards specify the modules to be compared. Up to 100 module cards may be specified. There must be a membership (MBR) and a co-performance (COP) factor available on the Task Factor file for each specified module.


<module> [<title>]

module:   cc 01-06  The module ID
title:    cc 08-67  Optional module title.  If blank, the module factor title
                    will be used.

These cards are terminated by an end-of-file or an '@eof' image.

Example

@codap corcas - ssss cd100 ct000 tf100 tt001
CORCAS ssss      Corcas run for task cluster case comparisons
ST0241 Easy tasks
ST0196 Descriptive title for this stage
ST0074 Trouble-shooting tasks
@eof

This run will compute and report the core cases for the three specified modules.

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