{"id":315,"date":"2022-11-29T21:54:09","date_gmt":"2022-11-29T21:54:09","guid":{"rendered":"http:\/\/learnlearn.uk\/ibcs\/?page_id=315"},"modified":"2023-04-25T10:36:02","modified_gmt":"2023-04-25T10:36:02","slug":"system-design-documentation","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/ibcs\/system-design-documentation\/","title":{"rendered":"System Design Documentation"},"content":{"rendered":"
\n

(ERD)<\/h2>\n
\n\n

Entity-Relationship Diagrams (ERD)\"\"<\/a><\/h3>\n

Visual representation of entities and their relationships in a database<\/p>\n

Used to design and understand relational databases<\/p>\n

Includes entities, attributes, relationships and cardinality symbols<\/p>\n\n<\/div>

(DFD)<\/h2>\n
\n\n

Data Flow Diagrams (DFD)<\/h3>\n

Visual representation of how data flows through a system<\/p>\n

Used to model \u201cas-is\u201d and \u201cto-be\u201d systems<\/p>\n

Includes external entities, processes, data stores, data flows and data transformations<\/p>\n\n<\/div>

(PFD)<\/h2>\n
\n\n

Process Flow Diagrams (PFD)<\/h3>\n

Visual representation of how processes, equipment, instruments and controls work together to produce a product<\/p>\n

Used to understand and optimize processes<\/p>\n

Includes process and equipment symbols, instrumentation and controls<\/p>\n\n<\/div>

Flowcharts<\/h2>\n
\n\n

Flowcharts\"\"<\/h3>\n

Visual representation of a process<\/p>\n

Used to understand, evaluate and improve processes<\/p>\n

Includes process steps, decisions, inputs and outputs<\/p>\n\n<\/div>

Use Case Diagrams<\/h2>\n
\n\n

Use Case Diagrams<\/h3>\n

Visual representation of actors, use cases and their relationships in a system<\/p>\n

Used to understand and validate user requirements<\/p>\n

Includes actors, use cases, associations and multiplicity<\/p>\n\n<\/div>

Mockups<\/h2>\n
\n\n

Mockups<\/h3>\n

Visual representation of a user interface<\/p>\n

Used to communicate and validate design ideas with stakeholders<\/p>\n

Includes screen layouts, buttons, text, images and other elements<\/p>\n\n<\/div>

Others<\/h2>\n
\n\n

Others<\/h3>\n

Other commonly used visual modeling tools include: State diagrams, Activity diagrams, Sequence diagrams, Class diagrams, Object diagrams<\/p>\n

Used in different domains and contexts to represent various aspects of a system<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n\n<\/div>

Resources<\/h2>\n
\n\n

Resources<\/h3>\n

 <\/p>\n

 <\/p>\n

Teacher Presentation<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Entity-Relationship Diagrams (ERD) Visual representation of entities and their relationships in a database Used to design and understand relational databases Includes entities, attributes, relationships and cardinality symbols Data Flow Diagrams (DFD) Visual representation of how data flows through a system Used to model \u201cas-is\u201d and \u201cto-be\u201d systems Includes external entities, processes, data stores, data flows… Read More »System Design Documentation<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"on","neve_meta_content_width":86,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":""},"yoast_head":"\nSystem Design Documentation - IB Computer Science<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/learnlearn.uk\/ibcs\/system-design-documentation\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"System Design Documentation - IB Computer Science\" \/>\n<meta property=\"og:description\" content=\"Entity-Relationship Diagrams (ERD) Visual representation of entities and their relationships in a database Used to design and understand relational databases Includes entities, attributes, relationships and cardinality symbols Data Flow Diagrams (DFD) Visual representation of how data flows through a system Used to model \u201cas-is\u201d and \u201cto-be\u201d systems Includes external entities, processes, data stores, data flows… Read More »System Design Documentation\" \/>\n<meta property=\"og:url\" content=\"https:\/\/learnlearn.uk\/ibcs\/system-design-documentation\/\" \/>\n<meta property=\"og:site_name\" content=\"IB Computer Science\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-25T10:36:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/learnlearn.uk\/ibcs\/wp-content\/uploads\/sites\/25\/2022\/11\/1200px-Hierachy_example_in_ER_diagram-300x217.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/learnlearn.uk\/ibcs\/system-design-documentation\/\",\"url\":\"https:\/\/learnlearn.uk\/ibcs\/system-design-documentation\/\",\"name\":\"System Design Documentation - 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