[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-655812-105":59,"doc-detail-655812-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","control-structure-diagram-csd-tutorial","Control Structure Diagram (CSD) - Tutorial","","Control Structure Diagram (CSD) is an algorithm-level diagramming approach designed to improve the understandability of source code by making control constructs, control paths, and overall program unit structure explicit. The tutorial explains CSD’s purpose as an intuitive, compact notation that can be used manually and automated. It covers learning objectives for basic control constructs—sequence, selection, iteration, exits, and exception handling—supported with examples, program component/unit notation, control construct categories, templates, and guidance for reading source code with CSD.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/control-structure-diagram-csd-tutorial/655812/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/control-structure-diagram-csd-tutorial/655812.png","ImageObject",300,407,{"name":92,"@type":93},"Kyle","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-25",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the Control Structure Diagram (CSD) used for?","Question",{"text":112,"@type":113},"CSD is used to improve the comprehensibility of source code by clearly depicting control constructs, control paths, and the overall structure of program units.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What learning objectives does the CSD tutorial focus on?",{"text":117,"@type":113},"After completing the tutorial, you should be able to understand CSD graphical notations for basic control constructs such as sequence, selection, iteration, exits, and exception handling.",{"name":119,"@type":110,"acceptedAnswer":120},"How does CSD help readability of a Java method like binarySearch?",{"text":121,"@type":113},"CSD adds visual cues by highlighting sequence, selection, and iteration in the code, making control flow and exit points explicit even when the needed information already exists in the source.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},655812,1793062657,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},3985741905716,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","5 The Control Structure Diagram (CSD)  \nThe Control Structure Diagram (CSD) is an algorithmic level diagram intended to improve the comprehensibility of source code by clearly depicting control constructs, control paths, and the overall structure of each program unit. The CSD is an alternative to flow charts and other graphical representations of algorithms. The major goal behind its creation was that it be an intuitive and compact graphical notation that is easy to use manually and relatively straightforward to automate. The CSD is a natural extension to architectural diagrams, such as class and module diagrams.  \nObjectives – When you have completed this tutorial, you should be able to use and understand the graphical notations used in the CSD for basic control constructs of modern programming languages, including sequence, selection, iteration, exits, and exception handling.  \nThe details of these objectives are captured in the hyperlinked topics listed below.  \n5.1 An Example to Illustrate the CSD  \n5.2 CSD Program Components/Units  \n5.3 CSD Control Constructs  \n5.4 CSD Templates  \n5.5 Hints on Working with the CSD  \n5.6 Reading Source Code with the CSD  \n5.7 References  \n5.1 An Example to Illustrate the CSD  \nFigure 5-1 shows the source code for a Java method called binarySearch. The method implements a binary search algorithm by using a while loop with anif..else..if statement nested within the loop. Even though this is a simple method, displayed with colored keywords and traditional indentation, its readability can be improved by adding the CSD. In addition to the while and if statements, we see that the method includes the declaration of primitive data (int) and two points of exit. The CSD provides visual cues for each of these constructs.  \nFigure 5-1. binarySearch method without CSD  \nFigure 5-2 shows the binarySearch method after the CSD has been generated. Although all necessary control information is in the source text, the CSD provides additional visual cues by highlighting the sequence, selection, and iteration in the code. The CSD notation begins with symbol for the method itself followed by the individual statements branching off the stem as it extends downward. The declaration of primitive data is highlighted with the symbol appended to the statement stem. The CSD construct for the while statement is represented by the double line “loop”(with break at the top), and the if statement uses the familiar diamond symbol from traditional flowcharts.  \nFinally, the two ways to exit from this method are shown explicitly with anarrow drawn from inside the method through the method stem to the outside.  \nFigure 5-2. binarySearch with CSD  \nWhile this is a small piece of code, it does illustrate the basic CSD constructs. However, the true utility of the CSD can be realized best when reading or writing larger, more complex programs, especially when control constructs become deeply nested. A number of studies involving the CSD have been done and others are in progress. In one of these, the CSD was shown to be preferred significantly over four other notations: flowchart, Nasi-Schneiderman chart, Warnier-Orr diagram, and the action diagram [Cross 1998] . In a several later studies, empirical experiments were done in which source code with the CSD was compared to source code without the CSD. In each of these studies, the CSD was shown to provide significant advantages in numerous code reading activities [Hendrix 2002] . In the following sections, the CSD notation is described in more detail.  \n5.2 CSD Program Components/Units  \nThe CSD includes graphical constructs for the following components or program units: class, abstract class, method, and abstract method. The construct for each component includes a unit symbol, a box notation, and a combination of the symbol and box notation. The symbol notation provides a visual cue as to the specific type of program component. It has the most compact vertical spacing in that it retai","cbCaibzBiyeXG1IN","https://ap.wps.com/l/cbCaibzBiyeXG1IN","pdf",376329,18,"English","# The Control Structure Diagram (CSD)\n## An Example to Illustrate the CSD\n## CSD Program Components/Units\n## CSD Control Constructs\n## CSD Templates\n## Hints on Working with the CSD\n## Reading Source Code with the CSD\n## References","[{\"question\":\"What is the Control Structure Diagram (CSD) used for?\",\"answer\":\"CSD is used to improve the comprehensibility of source code by clearly depicting control constructs, control paths, and the overall structure of program units.\"},{\"question\":\"What learning objectives does the CSD tutorial focus on?\",\"answer\":\"After completing the tutorial, you should be able to understand CSD graphical notations for basic control constructs such as sequence, selection, iteration, exits, and exception handling.\"},{\"question\":\"How does CSD help readability of a Java method like binarySearch?\",\"answer\":\"CSD adds visual cues by highlighting sequence, selection, and iteration in the code, making control flow and exit points explicit even when the needed information already exists in the source.\"}]","Control Structure Diagram (CSD) - Tutorial | PDF",1792964059,45]