{"id":23716,"date":"2013-05-14T11:55:45","date_gmt":"2013-05-14T06:25:45","guid":{"rendered":"http:\/\/vskills.in\/certification\/tutorial\/?p=23716"},"modified":"2024-04-12T14:17:27","modified_gmt":"2024-04-12T08:47:27","slug":"performance-and-accessibility-testing","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/performance-and-accessibility-testing\/","title":{"rendered":"Performance and accessibility testing"},"content":{"rendered":"<p><a class=\"vsc\" href=\"https:\/\/www.vskills.in\/certification\/web-development\/certificate-in-e-commerce\"><span class=\"vsc-cn\" style=\"text-align: center;\"><span style=\"color: red;\">Certify and Increase Opportunity.<\/span><br \/>\n<span style=\"color: green;\">Be <\/span><br \/>\nGovt. Certified E-Commerce Professional<br \/>\n<\/span><\/a><\/p>\n<p>Performance and accessibility testing<\/p>\n<p><strong>Performance Testing<\/strong><\/p>\n<p>Performance testing is a non-functional type of testing to determine the system responsiveness i.e. speed, stability, reliability and scalability. Performance Testing is a generic term which is used to describe a category or suite of tests, which includes<\/p>\n<ul>\n<li>Load Testing &#8211; It is performed to test the application behavior at various load levels within its acceptable limits. Main parameter to focus during Load testing is \u201cResponse Time\u201d.<\/li>\n<li>Stress Testing &#8211; Stress testing is performed to find out the break point where application performance deteriorates. Main parameters to focus during Stress testing are \u201cResponse Time\u201d and \u201cThroughput\u201d.<\/li>\n<li>Soak\/Endurance Testing \u2013 It is performed to determine if the application can handle continuous load for an extended period of time. Main parameter to focus during Soak testing is \u201cMemory\u201d.<\/li>\n<li>Volume Testing \u2013 It is done to determine the application performance against sudden user increase. Main parameter to focus during Volume testing is \u201cResponse Time\u201d.<\/li>\n<li>Scalability Testing &#8211; It is performed for measuring the system capability to scale up. Main parameters to focus during Scalability testing are Response Time and Transactions per seconds.<\/li>\n<\/ul>\n<p><strong>Performance Testing Cycle<\/strong> &#8211; Typical Performance testing cycle consists of<\/p>\n<ul>\n<li>Run the performance test to determine the application performance parameters<\/li>\n<li>Analyze results to examine whether the application is fulfilling the performance goals or not<\/li>\n<li>Optimize the application to resolve the performance bottlenecks<\/li>\n<\/ul>\n<p>These three steps performance testing cycle is repeated unless the performance goals are achieved.<\/p>\n<p>Common problems which are shown by performance testing are<\/p>\n<ul>\n<li>Long user response time<\/li>\n<li>Long server response time<\/li>\n<li>Memory leaks<\/li>\n<li>High CPU usage<\/li>\n<li>Too many open connections<\/li>\n<li>Length queues for requests<\/li>\n<li>Too many table scans of database<\/li>\n<li>Database deadlocks<\/li>\n<li>Erroneous data returned<\/li>\n<li>HTTP errors<\/li>\n<li>Pages not available<\/li>\n<li>Page check errors<\/li>\n<\/ul>\n<p><strong>Accessibility Testing<\/strong><\/p>\n<p>Web accessibility is about making your website accessible to all Internet users (both disabled and non-disabled), regardless of what browsing technology they&#8217;re using an accessible website can reap huge benefits on to the e-commerce website and business. There are evaluation tools that help with evaluation. However, no tool alone can determine if a site meets accessibility guidelines. Knowledgeable human evaluation is required to determine if a site is accessible. Website Accessibility Conformance Evaluation Methodology (WCAG-EM) is an approach for determining how well a website conforms to Web Content Accessibility Guidelines (WCAG) 2.0.<\/p>\n<p>WCAG-EM provides guidance on using the methodology and considerations for specific situations. The conformance evaluation procedure is detailed under 5 main steps:<\/p>\n<ul>\n<li>Define the scope of the evaluation &#8211; defining what is included in the evaluation; the goal of the evaluation; and the WCAG conformance level (A, AA, AAA).<\/li>\n<li>Explore the website &#8211; identifying key web pages; key functionality; types of web content, designs, functionality, etc.; required web technologies.<\/li>\n<li>Select a representative sample &#8211; guidance on structured and randomly selected web pages when it is not feasible to evaluate every web page on a website.<\/li>\n<li>Evaluate the selected sample &#8211; determining successes and failures in meeting WCAG 2.0; accessibility support for website features; and recording evaluation steps.<\/li>\n<li>Report the evaluation findings &#8211; aggregating and reporting evaluation findings; making evaluation statements; and calculating overall scores.<\/li>\n<\/ul>\n<p>Few guidelines used for accessibility testing are<\/p>\n<ul>\n<li>Page titles be shown in browsers tabs when there are multiple web pages open and to be read by screen readers.<\/li>\n<li>Presence of text alternatives (&#8220;alt text&#8221;) which convey the purpose of an image, to blind persons.<\/li>\n<li>Text, images, and other content doesn&#8217;t overlap with zooming.<\/li>\n<li>Check that the tab order follows the logical reading order<\/li>\n<li>Using a screen reader to test for accessibility<\/li>\n<\/ul>\n<div class=\"apply\">\n<h3>Apply for E-commerce Certification Now!!<\/h3>\n<p><a href=\"https:\/\/www.vskills.in\/certification\/web-development\/certificate-in-e-commerce\">https:\/\/www.vskills.in\/certification\/web-development\/certificate-in-e-commerce<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Certify and Increase Opportunity. Be Govt. Certified E-Commerce Professional Performance and accessibility testing Performance Testing Performance testing is a non-functional type of testing to determine the system responsiveness i.e. speed, stability, reliability and scalability. Performance Testing is a generic term which is used to describe a category or suite of tests, which includes Load Testing&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[3355],"tags":[],"class_list":["post-23716","page","type-page","status-publish","hentry","category-e-commerce-2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Performance and accessibility testing - Tutorial<\/title>\n<meta name=\"description\" content=\"Performance and accessibility testing. Govt of India Certification for e-commerce. 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