[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-656252-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-656252-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","block-diagrams-for-modeling-and-design-talk-overview","Block Diagrams for Modeling and Design - Talk Overview","","Visual depictions of electronic systems provide an efficient way to convey design information, enabling more formal specification than many approaches used for other domains such as software behavior. This talk examines the subset of visual formalisms known as block diagrams and explains why defining their concurrency semantics is crucial for reliable system specification and design. It compares multiple concurrency semantics, arguing for complementarity, and also discusses hybrid combinations of concurrency models with automata for sequential control.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/block-diagrams-for-modeling-and-design-talk-overview/656252/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/block-diagrams-for-modeling-and-design-talk-overview/656252.png","ImageObject",300,407,{"name":42,"@type":43},"gewufjwa","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-26","2026-10-25",true,{"@type":52,"interactionType":53,"userInteractionCount":22},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"Why are block diagrams effective for conveying design information?","Question",{"text":62,"@type":63},"They visually depict electronic systems in ways that are effective at communicating design intent, and—unlike many other diagram types—can capture essential information needed to implement systems.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What makes formalizing block-diagram semantics essential?",{"text":67,"@type":63},"Block diagrams represent concurrent systems, but there are many possible concurrency semantics. Formalizing which semantics a diagram uses is necessary so the diagrams can be used for accurate specification and design.",{"name":69,"@type":60,"acceptedAnswer":70},"How does the talk view multiple concurrency semantics—are they competing or complementary?",{"text":71,"@type":63},"The talk argues that different semantics have distinct strengths and weaknesses, making them complementary rather than competitive, so no single model is likely to be universally useful.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},656252,1793052344,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":92,"show_sort_weight":93,"slug":94},"Exam",70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":102,"slug":103},6,50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":101,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":22,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":145},3985747882900,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","| Block Diagrams for Modeling and Design |  |\n| --- | --- |\n| \u003Cbr>[blockdiagrams. fm](blockdiagrams. fm) | Edward A. Lee Professor\u003Cbr>UC Berkeley\u003Cbr>Dept. ofEECS\u003Cbr>Copyright © 1998, The Regents ofthe University of California All rights reserved. |\n\nUNIVERSITY OF CALIFORNIA AT BERKELEY  \n| Abstract |\n| --- |\n| Visual depictions of electronic systems have always held a strong human appeal, making them extremely effective in conveying information about a design. A few attempts to use such depictions to completely and formally specify systems have succeeded, most notably in circuit design, where schematic diagrams can capture all of the essential information needed to implement some systems. Others have failed dramatically, for example flowcharts for capturing the behavior of software. Recently, a number of innovative visual formalisms have been garnering support, including visual dataflow, hierarchical concurrent finite state machines, and object models. This talk focuses on the subset of these that are recognizable as \"block diagrams.\" Such diagrams represent concurrent systems, but there are many possible concurrency semantics. Formalizing the semantics is essential if these diagrams are to be used for system specification and design. This talk explores some of the possible concurrency semantics, arguing that their strengths and weaknesses make them complementary rather than competitive, so that no single model is likely toemerge as a universally useful model. I will also describe some recent innovations where concurrency models are combined with automata for sequential control. Socalled hybrid systems are a special case of such combinations.\u003Cbr>[blockdiagrams. fm](blockdiagrams. fm) © 1998, p . 2 of 39 |\n\nUNIVERSITY OF CALIFORNIA AT BERKELEY  \n\n| Domains where Block Diagrams are Common |  |\n| --- | --- |\n| • Circuit schematics\u003Cbr>• Computer architecture\u003Cbr>• Dynamical systems\u003Cbr>• Control theory\u003Cbr>• Signal processing\u003Cbr>• Communications\u003Cbr>\u003Cbr>| |\n| But the meaning of these diagrams can be quite different.\u003Cbr>[blockdiagrams. fm](blockdiagrams. fm) © 1998, p . 3 of 39 |  |\n| UNIVERSITY OF CALIFORNIA AT BERKELEY |  |\n\n| Properties of Block Diagrams |\n| --- |\n| • Modular\u003Cbr>• Large designs are composed of smaller designs\u003Cbr>• Modules encapsulate specialized expertise\u003Cbr>• Hierarchical\u003Cbr>• Composite designs themselves become modules\u003Cbr>• Modules may be very complicated\u003Cbr>• Concurrent\u003Cbr>• Modules logically operate simultaneously\u003Cbr>• Implementations may be sequential or parallel or distributed\u003Cbr>• Abstract\u003Cbr>• The interaction of modules occurs within a “model of computation”\u003Cbr>• Many interesting and useful MoCs have emerged\u003Cbr>• Domain Specific\u003Cbr>• Expertise encapsulated in MoCs and libraries of modules.\u003Cbr>[blockdiagrams. fm](blockdiagrams. fm) © 1998, p . 4 of 39 |\n\nUNIVERSITY OF CALIFORNIA AT BERKELEY  \n| Blocks and Signals |\n| --- |\n| \u003Cbr>block\u003Cbr>\u003Cbr>signal\u003Cbr>|\n| • Blocks represent activities\u003Cbr>• May have inputs and outputs, or not\u003Cbr>• May be implemented concurrently, or not\u003Cbr>• Are conceptually concurrent\u003Cbr>• Signals represent shared information\u003Cbr>• Shared variables\u003Cbr>• Functions of time\u003Cbr>• Sequences of tokens\u003Cbr>• Events in time\u003Cbr>[blockdiagrams. fm](blockdiagrams. fm) © 1998, p . 5 of 39 |\n\nUNIVERSITY OF CALIFORNIA AT BERKELEY  \n| Specifying Blocks |\n| --- |\n| \u003Cbr>• Denotationally:\u003Cbr>• A relation between signals (constraints on acceptable signals)\u003Cbr>• A function mapping input signals to output signals\u003Cbr>e.g. Y (z) = H (z) U (z)\u003Cbr>• Operationally:\u003Cbr>• Given observations of some signals, how do we change other signals\u003Cbr>e.g. x (n + 1) = Ax (n) + bu(n) y (n) = cT x (n) + du(n)\u003Cbr>[blockdiagrams. fm](blockdiagrams. fm) © 1998, p . 6 of 39 |\n\nUNIVERSITY OF CALIFORNIA AT BERKELEY  \n| Semantics |\n| --- |\n| \u003Cbr>block\u003Cbr>\u003Cbr>signal\u003Cbr>|\n| The meaning of an interconnection of blocks (a system)\u003Cbr>• Denotational semantics:\u003Cbr>The set of properties that signals must have in a particular interconnection\u003Cbr>• Operatio","cbCaigzFFnTVoXex","https://ap.wps.com/l/cbCaigzFFnTVoXex","pdf",618341,39,"English","# Abstract\n# Domains where Block Diagrams are Common\n## How meaning can differ\n# Properties of Block Diagrams\n## Modular, hierarchical, concurrent, abstract\n# Blocks and Signals\n## Signals as shared information\n# Specifying Blocks\n## Denotational vs operational specification\n# Semantics\n## Interconnection meaning\n# Determinacy\n## Determinate vs receptive; nondeterminism\n# Some Candidate Semantics\n## Analog, discrete time, discrete-event, dataflow, rendezvous","[{\"question\":\"Why are block diagrams effective for conveying design information?\",\"answer\":\"They visually depict electronic systems in ways that are effective at communicating design intent, and—unlike many other diagram types—can capture essential information needed to implement systems.\"},{\"question\":\"What makes formalizing block-diagram semantics essential?\",\"answer\":\"Block diagrams represent concurrent systems, but there are many possible concurrency semantics. Formalizing which semantics a diagram uses is necessary so the diagrams can be used for accurate specification and design.\"},{\"question\":\"How does the talk view multiple concurrency semantics—are they competing or complementary?\",\"answer\":\"The talk argues that different semantics have distinct strengths and weaknesses, making them complementary rather than competitive, so no single model is likely to be universally useful.\"}]","Block Diagrams for Modeling and Design - Talk Overview | PDF",1792967226,98]