[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-655844-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-655844-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","chapter-4-system-modeling-lecture-1","Chapter 4 - System Modeling - Lecture 1","","Chapter 4, Lecture 1 explains system modeling as a way to develop abstract representations of a system, where each model offers a distinct view for understanding functionality and supporting communication. It distinguishes modeling in requirements engineering for existing and new systems, and shows how model-driven engineering can generate implementations from models. The lecture introduces four system perspectives, then maps them to UML diagram types and clarifies how graphical models support discussion, documentation, and detailed implementation generation.",{"@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/chapter-4-system-modeling-lecture-1/655844/",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/chapter-4-system-modeling-lecture-1/655844.png","ImageObject",300,407,{"name":42,"@type":43},"McGucket","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-10-25",true,{"@type":52,"interactionType":53,"userInteractionCount":33},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What is system modeling and what does it help achieve?","Question",{"text":62,"@type":63},"System modeling develops abstract models that present different views of a system. It helps analysts understand system functionality and enables communication with customers.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"How are models used in requirements engineering for existing versus new systems?",{"text":67,"@type":63},"Models of the existing system clarify what the current system does and help identify strengths and weaknesses. Models of the new system explain proposed requirements to stakeholders and support design discussions and implementation documentation.",{"name":69,"@type":60,"acceptedAnswer":70},"What UML diagram types correspond to different modeling perspectives?",{"text":71,"@type":63},"Activity diagrams cover activities in processes or data processing, use case diagrams cover interactions with the environment, sequence diagrams show interactions among actors and components, class diagrams describe object classes and associations, and state diagrams show reactions to internal and external events.","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},655844,1792982393,{"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":33,"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},1236954412713,"https://us-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Chapter 4 – System Modeling  \nLecture 1  \nTopics covered  \n􀂗 Context models  \n􀂗 Interaction models  \n􀂗 Structural models  \n􀂗 Behavioral models  \n􀂗 Model-driven engineering  \nSystem modeling  \n􀂗 System modeling is the process of developing abstract models of a system, with each model presenting a different view or perspective of that system.  \n􀂗 System modeling has now come to mean representing a system using some kind of graphical notation, which is now almost always based on notations in the Unified Modeling Language (UML) .  \n􀂗 System modelling helps the analyst to understand the functionality of the system and models are used to communicate with customers.  \nExisting and planned system models  \n􀂗 Models of the existing system are used during requirements engineering. They help clarify what the existing system does and can be used as a basis for discussing its strengths and weaknesses. These then lead to requirements for the new system.  \n􀂗 Models of the new system are used during requirements engineering to help explain the proposed requirements to other system stakeholders. Engineers use these models to discuss design proposals and to document the system for implementation.  \n􀂗 In a model-driven engineering process, it is possible to generate a complete or partial system implementation from the system model.  \nSystem perspectives  \n􀂗 An external perspective, where you model the context or environment of the system.  \n􀂗 An interaction perspective, where you model the interactions between a system and its environment, or between the components of a system.  \n􀂗 A structural perspective, where you model the organization of a system or the structure of the data that is processed by the system.  \n􀂗 A behavioral perspective, where you model the dynamic behavior of the system and how it responds to events.  \nUML diagram types  \n􀂗 Activity diagrams, which show the activities involved in a process or in data processing .  \n􀂗 Use case diagrams, which show the interactions between a system and its environment.  \n􀂗 Sequence diagrams, which show interactions between actors and the system and between system components.  \n􀂗 Class diagrams, which show the object classes in the system and the associations between these classes.  \n􀂗 State diagrams, which show how the system reacts to internal and external events.  \nUse of graphical models  \n􀂗 As a means of facilitating discussion about an existing or proposed system  \n▪ Incomplete and incorrect models are OK as their role is to support discussion.  \n􀂗 As a way of documenting an existing system  \n▪ Models should be an accurate representation of the system but need not be complete.  \n􀂗 As a detailed system description that can be used to generate a system implementation  \n▪ Models have to be both correct and complete.  \nContext models  \n􀂗 Context models are used to illustrate the operational context of a system-they show what lies outside the system boundaries.  \n􀂗 Social and organisational concerns may affect the decision on where to position system boundaries.  \n􀂗 Architectural models show the system and its relationship with other systems.  \nSystem boundaries  \n􀂗 System boundaries are established to define what is inside and what is outside the system.  \n▪ They show other systems that are used or depend on the system being developed.  \n􀂗 The position of the system boundary has a profound effect on the system requirements.  \n􀂗 Defining a system boundary is a political judgment  \n▪ There may be pressures to develop system boundaries that increase / decrease the influence or workload of different parts of an organization.  \nThe context of the MHC-PMS","cbCaiu3tIzG0c4aV","https://ap.wps.com/l/cbCaiu3tIzG0c4aV","pdf",1083320,47,"English","# Lecture 1: Topics covered\n## Context models\n## Interaction models\n## Structural models\n## Behavioral models\n## Model-driven engineering\n## System modeling\n## Existing and planned system models\n## System perspectives\n## UML diagram types\n## Use of graphical models\n## Context models\n## System boundaries\n## The context of the MHC-PMS","[{\"question\":\"What is system modeling and what does it help achieve?\",\"answer\":\"System modeling develops abstract models that present different views of a system. It helps analysts understand system functionality and enables communication with customers.\"},{\"question\":\"How are models used in requirements engineering for existing versus new systems?\",\"answer\":\"Models of the existing system clarify what the current system does and help identify strengths and weaknesses. Models of the new system explain proposed requirements to stakeholders and support design discussions and implementation documentation.\"},{\"question\":\"What UML diagram types correspond to different modeling perspectives?\",\"answer\":\"Activity diagrams cover activities in processes or data processing, use case diagrams cover interactions with the environment, sequence diagrams show interactions among actors and components, class diagrams describe object classes and associations, and state diagrams show reactions to internal and external events.\"}]","Chapter 4 - System Modeling - Lecture 1 | PDF",1792964280,118]