{"id":270,"date":"2014-04-02T00:41:38","date_gmt":"2014-04-02T00:41:38","guid":{"rendered":"http:\/\/blog.soton.ac.uk\/orion\/?p=270"},"modified":"2014-05-02T02:37:38","modified_gmt":"2014-05-02T02:37:38","slug":"dfd-context-diagram","status":"publish","type":"post","link":"https:\/\/blog.soton.ac.uk\/orion\/analysis\/dfd-context-diagram\/","title":{"rendered":"Context-level data flow diagram"},"content":{"rendered":"<p>A context-level data flow diagram is used to identify the data flows between the system and its external entities. The data contained in our system comes from two external entities, which are the regular users and the subscribed organizations. Therefore, the system is shown as a single process (or a black box) that exchanges information from its external actors. Figure 1 shows the context-level data flow diagram of LeapIn.it.<\/p>\n<figure id=\"attachment_271\" class=\"wp-caption aligncenter\" style=\"width: 1081px\"><a href=\"http:\/\/blog.soton.ac.uk\/orion\/files\/2014\/04\/DFD-Context-Diagram.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-271\" alt=\"Figure 1: DFD Context Diagram of our system\" src=\"http:\/\/blog.soton.ac.uk\/orion\/files\/2014\/04\/DFD-Context-Diagram.jpg\" width=\"1081\" height=\"726\" srcset=\"https:\/\/blog.soton.ac.uk\/orion\/files\/2014\/04\/DFD-Context-Diagram.jpg 1081w, https:\/\/blog.soton.ac.uk\/orion\/files\/2014\/04\/DFD-Context-Diagram-300x201.jpg 300w, https:\/\/blog.soton.ac.uk\/orion\/files\/2014\/04\/DFD-Context-Diagram-1024x687.jpg 1024w\" sizes=\"auto, (max-width: 1081px) 100vw, 1081px\" \/><\/a><figcaption class=\"wp-caption-text\">Figure 1: DFD Context Diagram of our system<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A context-level data flow diagram is used to identify the data flows between the system and its external entities. The data contained in our system comes from two external entities, which are the regular users and the subscribed organizations. Therefore, the system is shown as a single process (or a black box) that exchanges information from its external actors. Figure&#8230;<span class=\"path-read-more\"><a class=\"more-link\" href=\"https:\/\/blog.soton.ac.uk\/orion\/analysis\/dfd-context-diagram\/\" title=\"Context-level data flow diagram\">  Read more &rarr; <\/a><\/span><\/p>\n","protected":false},"author":94018,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5349],"tags":[11849,723292],"class_list":["post-270","post","type-post","status-publish","format-standard","hentry","category-analysis","tag-architecture","tag-leapin-it"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/posts\/270","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/users\/94018"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/comments?post=270"}],"version-history":[{"count":4,"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/posts\/270\/revisions"}],"predecessor-version":[{"id":790,"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/posts\/270\/revisions\/790"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/media?parent=270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/categories?post=270"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/orion\/wp-json\/wp\/v2\/tags?post=270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}