{"id":37519,"date":"2016-09-19T11:36:05","date_gmt":"2016-09-19T16:36:05","guid":{"rendered":"http:\/\/antossoftwaretopics.wordpress.com\/?p=558"},"modified":"2016-09-19T11:36:05","modified_gmt":"2016-09-19T16:36:05","slug":"about-functional-an-non-functional-requirements","status":"publish","type":"post","link":"https:\/\/kenscourses.com\/tc1019fall2016\/syndicated\/about-functional-an-non-functional-requirements\/","title":{"rendered":"About functional an non functional requirements"},"content":{"rendered":"<p>Hello there! Today we are talking a little bit about Functional and non fuctional requirements in Software.<\/p>\n<dl id=\"attachment_562\" class=\"wp-caption aligncenter\" style=\"width:300px;\">\n<dt class=\"wp-caption-dt\"><img class=\"alignnone size-full wp-image-562\" src=\"https:\/\/antossoftwaretopics.files.wordpress.com\/2016\/09\/iceberg-poster-300x200.jpg?w=676\" alt=\"http:\/\/www.startxconsulting.com\/wp-content\/uploads\/2015\/05\/iceberg-poster-300x200.jpg\"   \/><\/dt>\n<dd class=\"wp-caption-dd\"><em>Original at: <a href=\"http:\/\/www.startxconsulting.com\/\" rel=\"nofollow\">http:\/\/www.startxconsulting.com<\/a><\/em><\/dd>\n<\/dl>\n<p>First of all, lets define what a requirement is:<\/p>\n<p>Requirement: menas what needs to be covered to achieve the project,it cover the description and conditions in which the project must work and the things that needs to be covered.<\/p>\n<p>We have User, System and Software requirements, user requirements are the ones stablished from the user, the main idea prototype of work and the main &#8220;characteristics&#8221; of the project.<\/p>\n<p>The system requirements are the functionality of the project, all the services and specs joined thogether.<\/p>\n<p>The software requirements are the details of which the software work, usually for the developers and Engineers to understand what is happening.<\/p>\n<p>Let\u00b4s check what functional and non fucntional software requirements means with the help of a chapter of\u00a0CS2 Software Engineering note 2 at CS2Ah Autumn 2004:<\/p>\n<blockquote><p><strong>Functional requirements:<\/strong> Statements of services that the system should provide, how the system should react to particular inputs and how the system should behave in particular situations<\/p><\/blockquote>\n<p>Describe functionality or system services.<\/p>\n<p>Depend on the type of software, expected users and the type of system where the software is used.<\/p>\n<p>Functional user requirements may be high-level statements of what the system should do; functional system requirements should describe the system services in detail<\/p>\n<p>Examples:<\/p>\n<ul>\n<li>The user shall be able to search either all of the initial set of databases or select a subset from it.<\/li>\n<li>The system shall provide appropriate viewers for the user to read documents in the document store.<\/li>\n<li>Every order shall be allocated a unique identifier (ORDER ID) which the user shall be able to copy to the account\u2019s permanent storage area<\/li>\n<\/ul>\n<blockquote><p><strong>Non-functional requirements:<\/strong> Constraints on the services or functions offered by the system <div class=\"post-limited-image\"><img class=\"  wp-image-586 aligncenter\" src=\"https:\/\/antossoftwaretopics.files.wordpress.com\/2016\/09\/5327432805_f430987fbc_z.jpg?w=573&#038;h=573\" alt=\"5327432805_f430987fbc_z\" width=\"573\" height=\"573\" \/><\/div>\n<div class=\"post-limited-image\"><img class=\"  wp-image-588 aligncenter\" src=\"https:\/\/antossoftwaretopics.files.wordpress.com\/2016\/09\/by-nc-nd.png?w=94&#038;h=33\" alt=\"by-nc-nd\" width=\"94\" height=\"33\" \/><\/div>\n<div class=\"post-limited-image\"><img alt=\"\" border=\"0\" src=\"http:\/\/feeds.wordpress.com\/1.0\/comments\/antossoftwaretopics.wordpress.com\/558\/\" \/><\/div>\n<div class=\"post-limited-image\"><img alt=\"\" border=\"0\" src=\"https:\/\/pixel.wp.com\/b.gif?host=antossoftwaretopics.wordpress.com&#038;blog=115154951&%23038;post=558&%23038;subd=antossoftwaretopics&%23038;ref=&%23038;feed=1\" width=\"1\" height=\"1\" \/><\/div><!--more--> as timing constraints, constraints on the development process, standards, etc.<\/p><\/blockquote>\n<ul>\n<li>Product requirements\n<ul>\n<li>\u2013 Requirements which specify that the delivered product must behave in a particular way, e.g. execution speed, reliability etc.<\/li>\n<\/ul>\n<\/li>\n<li>Organisational requirements\n<ul>\n<li>\u2013 Requirements which are a consequence of organisational policies and procedures, e.g. process standards used, implementation requirements etc.<\/li>\n<\/ul>\n<\/li>\n<li>External requirements\n<ul>\n<li>\u2013 Requirements which arise from factors which are external to the system and its development process, e.g. interoperability requirements, legislative requirements etc.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img class=\"  wp-image-586 aligncenter\" src=\"https:\/\/antossoftwaretopics.files.wordpress.com\/2016\/09\/5327432805_f430987fbc_z.jpg?w=573&#038;h=573\" alt=\"5327432805_f430987fbc_z\" width=\"573\" height=\"573\" \/><\/p>\n<p><img class=\"  wp-image-588 aligncenter\" src=\"https:\/\/antossoftwaretopics.files.wordpress.com\/2016\/09\/by-nc-nd.png?w=94&#038;h=33\" alt=\"by-nc-nd\" width=\"94\" height=\"33\" \/><\/p>\n<p>Now that we saw what functional and non functional means, I think we can offer a better description of our work. Not only programming is the deal, but also maintain a good documentation and maintenance of the project in words that anybody can understand. Remember, a good developer is the one that makes code easy to understand to anybody and this includes somebody with basic or null coding knowledge.<\/p><br \/>  <a rel=\"nofollow\" href=\"http:\/\/feeds.wordpress.com\/1.0\/gocomments\/antossoftwaretopics.wordpress.com\/558\/\"><img alt=\"\" border=\"0\" src=\"http:\/\/feeds.wordpress.com\/1.0\/comments\/antossoftwaretopics.wordpress.com\/558\/\" \/><\/a> <img alt=\"\" border=\"0\" src=\"https:\/\/pixel.wp.com\/b.gif?host=antossoftwaretopics.wordpress.com&#038;blog=115154951&%23038;post=558&%23038;subd=antossoftwaretopics&%23038;ref=&%23038;feed=1\" width=\"1\" height=\"1\" \/>","protected":false},"excerpt":{"rendered":"<p>Hello there! Today we are talking a little bit about Functional and non fuctional requirements in Software. Original at: http:\/\/www.startxconsulting.com First of all, lets define what a requirement is: Requirement: menas what needs to be covered to achieve the project,it cover the description and conditions in which the project must work and the things that &hellip; <a href=\"https:\/\/kenscourses.com\/tc1019fall2016\/syndicated\/about-functional-an-non-functional-requirements\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">About functional an non functional requirements<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":562,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,4],"tags":[112,239,240,238,60,275,25],"class_list":["post-37519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","category-syndicated","tag-ethics","tag-functional","tag-non-functional","tag-requirements","tag-software-engineering","tag-system-requirements","tag-tc1019"],"_links":{"self":[{"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/posts\/37519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/comments?post=37519"}],"version-history":[{"count":2,"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/posts\/37519\/revisions"}],"predecessor-version":[{"id":38012,"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/posts\/37519\/revisions\/38012"}],"wp:attachment":[{"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/media?parent=37519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/categories?post=37519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kenscourses.com\/tc1019fall2016\/wp-json\/wp\/v2\/tags?post=37519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}