{"id":97668,"date":"2015-03-24T13:20:34","date_gmt":"2015-03-24T17:20:34","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-346433"},"modified":"2024-04-23T13:48:25","modified_gmt":"2024-04-23T17:48:25","slug":"ivv-services-overview","status":"publish","type":"topic","link":"https:\/\/www.nasa.gov\/ivv-services-overview\/","title":{"rendered":"IV&V Services Overview"},"content":{"rendered":"<div id=\"\" class=\" hds-module hds-module-full wp-block-nasa-blocks-secondary-navigation\"><div class=\"hds-secondary-navigation-wrapper z-top width-100 padding-0\"><div id=\"\" class=\"hds-secondary-navigation width-full border-bottom-1px text-center hds-color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-hdsnav\"><button type=\"button\" class=\"hds-secondary-nav-mobile-button display-flex tablet:display-flex desktop:display-none width-full flex-align-center bg-carbon-90 border-color-carbon-80 color-spacesuit-white\" aria-expanded=\"false\" aria-controls=\"hds-secondary-nav-track\"><span>Katherine Johnson IVV Facility<\/span><svg width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><\/button><div class=\"hds-secondary-nav-track grid-container grid-container-extrawide padding-0 tablet:padding-x-3 desktop:padding-x-2 \"><div class=\"hds-secondary-navigation-menu-items\"><nav><ul class=\"usa-nav__primary usa-accordion flex-justify-center margin-0\"><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/katherine-johnson-ivv-facility\">IV&V Home<\/a><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>About NASA’s IV&V Program<\/span><svg class=\"hds-desktop-submenu-toggle-icon display-none tablet:display-none desktop:display-block\" width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><svg class=\"hds-mobile-submenu-toggle-icon display-block tablet:display-block desktop:display-none\" width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"8\" cy=\"8\" r=\"7.5\" fill=\"#0B3D91\" stroke=\"white\"\/><rect x=\"4\" y=\"7.6001\" width=\"8\" height=\"0.8\" fill=\"white\"\/><rect class=\"hds-mobile-submenu-toggle-icon-line-vertical\" x=\"7.59998\" y=\"12\" width=\"8\" height=\"0.8\" transform=\"rotate(-90 7.59998 12)\" fill=\"white\"\/><\/svg><\/button><ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/about-nasas-ivv-program\/\">About IV&V<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivvs-mission-and-values\/\">Mission and Values<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/people\/wes-deadrick\/\">Director’s Bio<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-organization\/\">IV&V Organization<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/visiting-the-katherine-johnson-ivv-facility\/\">Visiting IV&V<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-program-flyers\/\">Program Flyers<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>IV&V Services<\/span><svg class=\"hds-desktop-submenu-toggle-icon display-none tablet:display-none desktop:display-block\" width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><svg class=\"hds-mobile-submenu-toggle-icon display-block tablet:display-block desktop:display-none\" width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"8\" cy=\"8\" r=\"7.5\" fill=\"#0B3D91\" stroke=\"white\"\/><rect x=\"4\" y=\"7.6001\" width=\"8\" height=\"0.8\" fill=\"white\"\/><rect class=\"hds-mobile-submenu-toggle-icon-line-vertical\" x=\"7.59998\" y=\"12\" width=\"8\" height=\"0.8\" transform=\"rotate(-90 7.59998 12)\" fill=\"white\"\/><\/svg><\/button><ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-services\/\">IV&V Services Home<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-services-overview\/\">IV&V Services Overview<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-current-projects\/\">IV&V Current Projects<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>Doing Business<\/span><svg class=\"hds-desktop-submenu-toggle-icon display-none tablet:display-none desktop:display-block\" width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><svg class=\"hds-mobile-submenu-toggle-icon display-block tablet:display-block desktop:display-none\" width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"8\" cy=\"8\" r=\"7.5\" fill=\"#0B3D91\" stroke=\"white\"\/><rect x=\"4\" y=\"7.6001\" width=\"8\" height=\"0.8\" fill=\"white\"\/><rect class=\"hds-mobile-submenu-toggle-icon-line-vertical\" x=\"7.59998\" y=\"12\" width=\"8\" height=\"0.8\" transform=\"rotate(-90 7.59998 12)\" fill=\"white\"\/><\/svg><\/button><ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/doing-business-with-ivv\/\">Doing Business with IV&V<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-partners\/\">IV&V Partners<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>Additional Links<\/span><svg class=\"hds-desktop-submenu-toggle-icon display-none tablet:display-none desktop:display-block\" width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><svg class=\"hds-mobile-submenu-toggle-icon display-block tablet:display-block desktop:display-none\" width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"8\" cy=\"8\" r=\"7.5\" fill=\"#0B3D91\" stroke=\"white\"\/><rect x=\"4\" y=\"7.6001\" width=\"8\" height=\"0.8\" fill=\"white\"\/><rect class=\"hds-mobile-submenu-toggle-icon-line-vertical\" x=\"7.59998\" y=\"12\" width=\"8\" height=\"0.8\" transform=\"rotate(-90 7.59998 12)\" fill=\"white\"\/><\/svg><\/button><ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-stem-engagement\/\">STEM Engagement<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/jon-mcbride-software-testing-and-research-jstar\/\">JSTAR<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-workshop-archive\/\">IV&V Workshop Archive<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/ivv-management-system-ims\/\">IV&V Management System<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/for-ivv-employees\/\">For IV&V Employees<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">IV&V Services Overview<\/h2>\n\n\n\n<p><strong>What is Verification and Validation?<\/strong><br>\nVerification answers the question, \u201cAre we building the product right?\u201d Verification is the process of determining whether or not the software products of a given phase of the SDLC fulfill the established requirements for that phase.<br>\nValidation answers the question, \u201cAre we building the right product?\u201d Validation evaluates the software products throughout the SDLC to ensure those products meet the mission and customer\u2019s needs.<br>\n<strong>What is Independence?<\/strong><br>\nIEEE defines independence in IV&V as three parameters: technical independence, managerial independence, and financial independence.<\/p>\n\n\n\n<ul>\n<li>Technical independence is achieved by IV&V practitioners who use their expertise to assess development processes and products independent of the developer.<\/li>\n\n\n\n<li>Managerial independence requires responsibility for the IV&V effort to be vested in an organization separate from the organization responsible for performing the system implementation. The IV&V effort independently selects the segments of the software and system to analyze and test, chooses the IV&V techniques, defines the schedule of IV&V activities, and selects the specific technical issues and problems to act upon. Most projects view V&V as sufficient and do not recognize the added value the independence brings.<\/li>\n\n\n\n<li>Financial independence requires that the IV&V budget be vested in an organization independent from the development organization. NASA\u2019s IV&V Program is funded from NASA\u2019s Mission Support Directorate (MSD). Projects may directly fund services.<\/li>\n<\/ul>\n\n\n\n<p><strong>What is Software IV&V?<\/strong><br>\nSoftware IV&V is a systems engineering process employing rigorous methodologies for evaluating the correctness and quality of the software product throughout the SDLC. Software IV&V is adapted to the characteristics of the project.<br>\n<strong>IV&V Benefits<\/strong><\/p>\n\n\n\n<ul>\n<li>Higher confidence that delivered products are error free and meet the user needs.<\/li>\n\n\n\n<li>An increased likelihood of uncovering high-risk errors early in the development lifecycle.\n<ul>\n<li>Allows time for the design team to evolve a comprehensive solution rather than forcing them into a makeshift fix to accommodate deadlines<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Delivery of ongoing status indicators and performance reporting to decision makers (e.g. program managers).\n<ul>\n<li>The customer is provided an incremental preview of system performance with the chance to make early adjustments.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Reduction of the need for rework from the developing contractor thereby reducing total costs to programs and projects.<\/li>\n\n\n\n<li>Facilitation of the transfer of system and software engineering best practices.<\/li>\n<\/ul>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/03\/ivv_benefits_services.jpg\"><img decoding=\"async\" width=\"586\" height=\"43\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/03\/ivv_benefits_services.jpg?w=586\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"IV&V Benefits Services\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/03\/ivv_benefits_services.jpg 586w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/03\/ivv_benefits_services.jpg?resize=300,22 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/03\/ivv_benefits_services.jpg?resize=400,29 400w\" sizes=\"(max-width: 586px) 100vw, 586px\" loading=\"eager\" \/><\/a><\/figure><\/div><\/div><\/div>\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>IV&V Services Overview What is Verification and Validation? Verification answers the question, \u201cAre we building the product right?\u201d Verification is the process of determining whether or not the software products of a given phase of the SDLC fulfill the established requirements for that phase. Validation answers the question, \u201cAre we building the right product?\u201d Validation […]<\/p>\n","protected":false},"author":67,"featured_media":132499,"parent":0,"menu_order":0,"template":"","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[]},"categories":[2859],"news-tags":[],"internal-terms":[9509],"coauthors":[8625],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"WebPage","headline":"IV&V Services Overview","url":"https:\/\/www.nasa.gov\/ivv-services-overview\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/ivv-services-overview\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/dsc_1434_cc2.webp?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/dsc_1434_cc2.webp"},"articleSection":"NASA Centers & Facilities","author":[{"@type":"Person","name":"Michael Asbury"}],"creator":["Michael Asbury"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["NASA Centers & Facilities","Katherine Johnson IV and V Facility"],"dateCreated":"2015-03-24T17:20:34Z","datePublished":"2015-03-24T17:20:34Z","dateModified":"2024-04-23T17:48:25Z"},"rendered":"<meta name=\"parsely-title\" content=\"IV&V Services Overview\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/ivv-services-overview\/\" \/>\n<meta name=\"parsely-type\" content=\"index\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/dsc_1434_cc2.webp?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2015-03-24T17:20:34Z\" \/>\n<meta name=\"parsely-section\" content=\"NASA Centers & Facilities\" \/>\n<meta name=\"parsely-tags\" content=\"NASA Centers & Facilities,Katherine Johnson IV and V Facility\" \/>\n<meta name=\"parsely-author\" content=\"Michael Asbury\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":2,"time_ago":"9 years","featured_image":{"id":132499,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/dsc_1434_cc2.webp","title":"IVV Facility","alt":"Katherine Johnson IV&V Facility","caption":"Katherine Johnson IV&V Facility"},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/97668"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/topic"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/67"}],"version-history":[{"count":10,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/97668\/revisions"}],"predecessor-version":[{"id":669317,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/97668\/revisions\/669317"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/132499"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=97668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=97668"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=97668"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=97668"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=97668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}