METHODS FOR EXTENDING THE RANGE OF NON-COMPUTER CRITICAL PATH APPLICATIONS

A CONTINUATION IS DESCRIBED OF THE RESEARCH IN AN EARLIER REPORT ENTITLED "A NON-COMPUTER APPROACH TO THE CRITICAL PATH METHOD FOR THE CONSTRUCTION INDUSTRY." ITS PURPOSE IS TO PRESENT IMPROVEMENTS TO SEVERAL OF THE PROCEDURES PREVIOUSLY DEVELOPED AND TO OFFER ADDITIONAL METHODS THAT WILL EXTEND THE RANGE OF THE NON-COMPUTER APPROACH. CHAPTER I DISCUSSES THESE OBJECTIVES AND CERTAIN NOMENCLATURE CHANGES. THE DECISION TO RETAIN THE DIAGRAMMING SYSTEM PRESENTED IN THE EARLIER REPORT, WHICH IS CONSIDERED BY SOME TO BE "NON-STANDARD," IS DISCUSSED AT LENGTH IN CHAPTER II. THIS IS A BASIC MATTER SINCE THE DETAIL OF THE PROCEDURES TO BE PRESENTED IS DEPENDENT ON THE TYPE OF NETWORK DIAGRAM ADOPTED. THE DECIDING FACTOR IS THAT OF SIMPLICITY. IN CHAPTER III, THE BASIC NETWORK ELEMENTS AND THE MECHANICS BY WHICH CHANGES ARE TRANSMITTED THROUGH THE NETWORK ARE EXAMINED. THREE APPROACHES ARE PROPOSED FOR INCREASING THE SIZE OF NETWORK WHICH CAN FEASIBLY BE UPDATED BY NON-COMPUTER PROCEDURES. THIS ABILITY TO UPDATE DATA IS NOT ONLY IMPORTANT AS A FUNCTION BY ITSELF, BUT IT IS A KEY STEP IN SEVERAL OTHER TECHNIQUES, SUCH AS TIME-COST TRADE-OFFS AND RESOURCE ALLOCATION. THEREFORE, THESE APPROACHES ARE SIGNIFICANT IN ACCOMPLISHING THE OBJECTIVES OF THE REPORT. THEY ARE: (1) GREATER SELECTIVITY IN DATA REQUIREMENT; (2) EFFICIENT METHODS FOR UPDATING ONLY THAT DATA AFFECTED BY A CHANGE RATHER THAN RECOMPUTING ALL DATA; AND (3) NETWORK BREAKDOWN THAT PERMITS LARGE NETWORKS TO BE REDUCED TO SMALLER SUBNETS WITHOUT SACRIFICING ESSENTIAL PROPERTIES OF THE OVERALL DIAGRAM. CHAPTER IV CONSIDERS IN DETAIL GREATER SELECTIVITY IN DATA REQUIREMENTS AND ANALYZES THE VARIOUS ELEMENTS OF DATA THAT CAN BE PROVIDED AS WELL AS THE VARIOUS APPLICATIONS OF THIS DATA. RECOMMENDATIONS ARE MADE FOR (1) CONSIDERABLY REDUCING THE AMOUNT OF DATA THAT IS TO BE MAINTAINED IN AN UP-TO-DATE CONDITION AFTER EACH CHANGE OCCURS, AND (2) UPDATING THE REMAINDER AT MUCH LESS FREQUENT INTERVALS. CHAPTER V DEVELOPS PROCEDURES FOR UPDATING THAT DATA THAT IS AFFECTED BY A CHANGE WITHOUT RECOMPUTING THE COMPLETE SET OF DATA. IT IS BASED ON A STRICTLY MANUAL METHOD. CHAPTER VI DESCRIBES AN ALTERNATIVE METHOD OF UPDATING BASED ON THE USE OF AN ELECTRICAL NETWORK ANALYZER THAT HAS BEEN DEVELOPED UNDER THIS PROJECT TO FACILITATE THIS WORK. CHAPTER VII DISCUSSED THREE METHODS OF NETWORK BREAKDOWN WHICH MAKE IT POSSIBLE TO REDUCE A LARGE NETWORK TO A SIZE THAT IS FEASIBLE TO HANDLE NON-COMPUTER PROCEDURES. ONE OF THEM, A NEW METHOD BASED ON DATELINE CUTOFFS, IS PARTICULARLY USEFUL SINCE IT PERMITS UPDATING, ANALYSIS, AND EXPANSION OF DETAIL, IF DESIRED, FOR THAT PORTION OF THE PROJECT THAT IS TO BE PERFORMED IN THE IMMEDIATE FUTURE, BUT DOES NOT REQUIRE COMPLETE UPDATING OR A SIMILAR DEGREE OF DETAIL FOR THE REMAINDER OF THE NETWORK. /AUTHOR/

  • Supplemental Notes:
    • Tech Rept 47, 180 PP, 45 FIG
  • Corporate Authors:

    Stanford University

    Department of Civil Engineering
    Stanford, CA  USA  94305
  • Authors:
    • Fondahl, J W
  • Publication Date: 0

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Filing Info

  • Accession Number: 00215263
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 27 1970 12:00AM