{"id":14018,"date":"2024-08-26T12:41:04","date_gmt":"2024-08-26T10:41:04","guid":{"rendered":"https:\/\/darksn.de\/?page_id=14018"},"modified":"2024-08-26T12:41:04","modified_gmt":"2024-08-26T10:41:04","slug":"approach-to-software-development","status":"publish","type":"page","link":"https:\/\/darksn.de\/en\/approach-to-software-development\/","title":{"rendered":"Approach to Software Development"},"content":{"rendered":"\t\t
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\n\t\t\t\n\n\n \n \n Waterfall Development Model<\/title>\n <style>\n \n .container {\n max-width: 800px;\n margin: 0 auto;\n background-color: white;\n padding: 20px;\n border-radius: 10px;\n box-shadow: 0 0 10px rgba(0,0,0,0.1);\n }\n h1 {\n color: #0066cc;\n text-align: center;\n }\n .description {\n text-align: justify;\n padding: 10px;\n \n border-left: 5px solid red;\n margin-bottom: 20px;\n }\n .waterfall {\n position: relative;\n height: 400px;\n background: linear-gradient(to bottom, black, red);\n border-radius: 10px;\n overflow: hidden;\n }\n .stage {\n position: absolute;\n left: 10px;\n width: calc(100% - 20px);\n height: 50px;\n background-color: rgba(255,255,255,0.8);\n border-radius: 5px;\n display: flex;\n align-items: center;\n justify-content: center;\n font-weight: bold;\n \n transition: all 0.3s ease;\n }\n .stage:hover {\n transform: scale(1.05);\n box-shadow: 0 0 10px rgba(0,0,0,0.2);\n }\n .stage::after {\n content: \"\";\n position: absolute;\n top: 100%;\n left: 50%;\n border-left: 10px solid transparent;\n border-right: 10px solid transparent;\n border-top: 10px solid rgba(255,255,255,0.8);\n }\n .suitable-for {\n margin-top: 20px;\n }\n \n .suitable-for ul {\n list-style-type: none;\n padding-left: 0;\n }\n .suitable-for li::before {\n content: \"\ud83d\udd39\";\n margin-right: 10px;\n \n }\n <\/style>\n<\/head>\n<body>\n <div class=\"container\">\n <h1>Waterfall Development Model<\/h1>\n <div class=\"description\">\n <p>The waterfall development methodology follows a linear workflow, cascading from top to bottom through several stages that focus on distinct goals. Once the development process begins, no alterations or extensions to the project scope are permitted, necessitating comprehensive requirement gathering during the planning stage. Developers must complete each stage before progressing, resulting in the software being implemented as the finished product at the project's conclusion.<\/p>\n <\/div>\n <div class=\"waterfall\">\n <div class=\"stage\" style=\"top: 10px;\">Discovery<\/div>\n <div class=\"stage\" style=\"top: 80px;\">Design<\/div>\n <div class=\"stage\" style=\"top: 150px;\">Coding<\/div>\n <div class=\"stage\" style=\"top: 220px;\">Testing<\/div>\n <div class=\"stage\" style=\"top: 290px;\">Deployment<\/div>\n <div class=\"stage\" style=\"top: 360px;\">Maintenance<\/div>\n <\/div>\n <div class=\"suitable-for\">\n <h3>Suitable for:<\/h3>\n <ul>\n <li>Projects with well-defined, unchanging requirements and objectives<\/li>\n <li>Projects where timeline and budget control is critical<\/li>\n <\/ul>\n <\/div>\n <\/div>\n <script>\n document.querySelectorAll('.stage').forEach(stage => {\n stage.addEventListener('mouseover', () => {\n stage.style.backgroundColor = 'rgba(255,255,255,1)';\n });\n stage.addEventListener('mouseout', () => {\n stage.style.backgroundColor = 'rgba(255,255,255,0.8)';\n });\n });\n <\/script>\n<\/body>\n<\/html>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-80759f5 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-parent\" data-id=\"80759f5\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a7ba85b elementor-widget elementor-widget-html\" data-id=\"a7ba85b\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Animated V-model Software Development Life Cycle<\/title>\n <style>\n \n .container {\n background-color: white;\n padding: 20px;\n border-radius: 10px;\n box-shadow: 0 0 10px rgba(0,0,0,0.1);\n }\n h2 {\n color: #8b0000;\n margin-bottom: 10px;\n text-align: center;\n }\n p {\n margin-bottom: 15px;\n text-align: justify;\n }\n .suitable-for {\n margin-bottom: 20px;\n background-color: #ffe6e6;\n padding: 10px;\n border-radius: 5px;\n }\n .suitable-for ul {\n list-style-type: none;\n padding-left: 0;\n }\n .suitable-for li::before {\n content: \"\u2022\";\n color: #ff3333;\n display: inline-block;\n width: 1em;\n margin-left: -1em;\n }\n .v-model {\n display: flex;\n justify-content: center;\n align-items: center;\n margin-top: 30px;\n position: relative;\n height: 500px;\n }\n .v-shape {\n width: 600px;\n height: 400px;\n border: 4px solid #ff3333;\n border-top: none;\n position: relative;\n display: flex;\n justify-content: space-between;\n }\n .dev-cycle, .test-cycle {\n display: flex;\n flex-direction: column;\n justify-content: space-around;\n height: 100%;\n width: 45%;\n }\n .cycle-step {\n background-color: #ff3333;\n color: white;\n padding: 10px;\n border-radius: 5px;\n text-align: center;\n cursor: pointer;\n transition: all 0.3s ease;\n opacity: 0;\n transform: translateY(20px);\n }\n .cycle-step:hover {\n transform: scale(1.1);\n box-shadow: 0 0 15px rgba(255, 51, 51, 0.7);\n }\n .verification, .validation {\n background-color: #ffe6e6;\n padding: 10px;\n margin-top: 20px;\n border-radius: 5px;\n }\n .scheme-title {\n font-style: italic;\n color: #8b0000;\n margin-top: 20px;\n text-align: center;\n }\n .connection-line {\n position: absolute;\n background-color: #ff3333;\n transition: all 0.5s ease;\n }\n @keyframes fadeInUp {\n from {\n opacity: 0;\n transform: translateY(20px);\n }\n to {\n opacity: 1;\n transform: translateY(0);\n }\n }\n <\/style>\n<\/head>\n<body>\n <div class=\"container\">\n <h2>V-model<\/h2>\n <p>The V-model is an extension of the Waterfall methodology that emphasizes testing in parallel with the development process. Each subsequent development phase can only start after testing for the previous stage, thus reducing the probability of defects and errors in the final product and ensuring high software quality. However, the focus on the testing activities can make the development time-consuming and costly.<\/p>\n \n <div class=\"suitable-for\">\n <h3>Suitable for:<\/h3>\n <ul>\n <li>Projects that can use Waterfall but demand higher levels of quality and reliability<\/li>\n <\/ul>\n <\/div>\n\n <div class=\"v-model\">\n <div class=\"v-shape\">\n <div class=\"dev-cycle\">\n <div class=\"cycle-step\">Business req. specification<\/div>\n <div class=\"cycle-step\">System req. specification<\/div>\n <div class=\"cycle-step\">High level design<\/div>\n <div class=\"cycle-step\">Low level design<\/div>\n <div class=\"cycle-step\">Coding<\/div>\n <\/div>\n <div class=\"test-cycle\">\n <div class=\"cycle-step\">Acceptance testing<\/div>\n <div class=\"cycle-step\">System integration testing<\/div>\n <div class=\"cycle-step\">Component testing<\/div>\n <div class=\"cycle-step\">Unit testing<\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"verification\">\n <strong>Verification:<\/strong>\n <p>Review of the product development process to find whether the requirements are met<\/p>\n <\/div>\n\n <div class=\"validation\">\n <strong>Validation:<\/strong>\n <p>Confirmation that the software meets customer expectations post-development<\/p>\n <\/div>\n\n <p class=\"scheme-title\">Scheme title: Software development life cycle in the V-model<\/p>\n <\/div>\n\n <script>\n function animateSteps() {\n const steps = document.querySelectorAll('.cycle-step');\n steps.forEach((step, index) => {\n setTimeout(() => {\n step.style.animation = 'fadeInUp 0.5s forwards';\n }, index * 300);\n });\n }\n\n function createConnections() {\n const devSteps = document.querySelectorAll('.dev-cycle .cycle-step');\n const testSteps = document.querySelectorAll('.test-cycle .cycle-step');\n const vShape = document.querySelector('.v-shape');\n\n devSteps.forEach((step, index) => {\n if (index < testSteps.length) {\n const line = document.createElement('div');\n line.className = 'connection-line';\n vShape.appendChild(line);\n\n setTimeout(() => {\n const devRect = step.getBoundingClientRect();\n const testRect = testSteps[testSteps.length - 1 - index].getBoundingClientRect();\n const vShapeRect = vShape.getBoundingClientRect();\n\n const x1 = devRect.right - vShapeRect.left;\n const y1 = devRect.top + devRect.height \/ 2 - vShapeRect.top;\n const x2 = testRect.left - vShapeRect.left;\n const y2 = testRect.top + testRect.height \/ 2 - vShapeRect.top;\n\n const length = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));\n const angle = Math.atan2(y2 - y1, x2 - x1) * 180 \/ Math.PI;\n\n line.style.width = `${length}px`;\n line.style.left = `${x1}px`;\n line.style.top = `${y1}px`;\n line.style.transform = `rotate(${angle}deg)`;\n line.style.transformOrigin = '0 0';\n }, (devSteps.length + index) * 300);\n }\n });\n }\n\n window.addEventListener('load', () => {\n animateSteps();\n setTimeout(createConnections, devSteps.length * 300);\n });\n <\/script>\n<\/body>\n<\/html>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7cd2650 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-parent\" data-id=\"7cd2650\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d6edf0e elementor-widget elementor-widget-html\" data-id=\"d6edf0e\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Rapid Application Development<\/title>\n <style>\n \n h1 {\n color: #000;\n font-size: 24px;\n margin-bottom: 10px;\n }\n p {\n margin-bottom: 15px;\n }\n .suitable-for {\n margin-bottom: 20px;\n }\n .suitable-for ul {\n list-style-type: none;\n padding-left: 0;\n }\n .suitable-for li::before {\n content: \"\u2022\";\n color: #800080;\n display: inline-block;\n width: 1em;\n margin-left: -1em;\n }\n .diagram {\n position: relative;\n height: 500px;\n width: 100%;\n margin-top: 30px;\n }\n .box {\n border: 2px solid #ff00ff;\n padding: 8px;\n text-align: center;\n position: absolute;\n background-color: #fff;\n transform: translateX(-50%);\n white-space: normal;\n width: 140px;\n font-size: 12px;\n }\n .module-box {\n border: 2px solid #ffa500;\n width: 120px;\n }\n .arrow {\n position: absolute;\n width: 0;\n height: 0;\n }\n .arrow-down {\n border-left: 8px solid transparent;\n border-right: 8px solid transparent;\n border-top: 12px solid #000;\n left: 50%;\n transform: translateX(-50%);\n }\n .arrow-right {\n border-top: 8px solid transparent;\n border-bottom: 8px solid transparent;\n border-left: 12px solid #000;\n top: 50%;\n transform: translateY(-50%);\n }\n .arrow-left {\n border-top: 8px solid transparent;\n border-bottom: 8px solid transparent;\n border-right: 12px solid #000;\n top: 50%;\n transform: translateY(-50%);\n }\n .side-box {\n border: 1px solid #ccc;\n padding: 5px;\n text-align: center;\n position: absolute;\n right: 0;\n background-color: #fff;\n width: 60px;\n font-size: 12px;\n }\n .scheme-title {\n font-style: italic;\n color: #666;\n margin-top: 20px;\n font-size: 12px;\n text-align: center;\n }\n <\/style>\n<\/head>\n<body>\n <h1>Rapid application development<\/h1>\n <p>RAD promotes short development cycles and rapid delivery of functional software. This model focuses on iterative app development, where the project is broken down into smaller modules developed in parallel by different teams. The RAD model implies gathering requirements through focus groups, prototyping and early user testing to get customer feedback and accommodate possible requirement changes before the development starts. It also emphasizes reusing software components across the system, adhering to strict upfront dependencies planning and precise project scheduling and coordinating, extensive requirements elaboration and software design efforts, as well as a team of highly experienced analysts and architects.<\/p>\n \n <div class=\"suitable-for\">\n <h3>Suitable for:<\/h3>\n <ul>\n <li>Projects where requirements can be identified upfront<\/li>\n <li>Systems that can be modularized<\/li>\n <\/ul>\n <\/div>\n\n <div class=\"diagram\">\n <div class=\"box\" style=\"top: 0%; left: 50%;\">Elicit requirements<\/div>\n \n \n <div class=\"box\" style=\"top: 60px; left: 50%;\">Modularize requirements<\/div>\n \n \n <div class=\"box module-box\" style=\"top: 120px; left: 25%;\">Develop module 1<\/div>\n <div class=\"box module-box\" style=\"top: 150px; left: 50%;\">Develop module 2<\/div>\n <div class=\"box module-box\" style=\"top: 120px; left: 75%;\">Develop module N<\/div>\n \n <div style=\"position: absolute; top: 100px; left: 20%; font-size: 12px;\">Team 1<\/div>\n <div style=\"position: absolute; top: 100px; left: 45%; font-size: 12px;\">Team 2<\/div>\n <div style=\"position: absolute; top: 100px; left: 70%; font-size: 12px;\">Team N<\/div>\n \n \n <div class=\"box\" style=\"top: 210px; left: 50%; width: 160px;\">Integrate all the modules<\/div>\n \n \n <div class=\"box\" style=\"top: 270px; left: 50%; width: 160px;\">Test the final product & deliver<\/div>\n \n <div class=\"side-box\" style=\"top: 60px;\">Analyze<\/div>\n <div class=\"side-box\" style=\"top: 120px;\">Design<\/div>\n <div class=\"side-box\" style=\"top: 180px;\">Code<\/div>\n <div class=\"side-box\" style=\"top: 240px;\">Test<\/div>\n <\/div>\n\n <p class=\"scheme-title\">Scheme title: Process model for Rapid application development<\/p>\n<\/body>\n<\/html>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Waterfall Development Model Waterfall Development Model The waterfall development methodology follows a linear workflow, cascading from top to bottom through several stages that focus on distinct goals. Once the development process begins, no alterations or extensions to the project scope are permitted, necessitating comprehensive requirement gathering during the planning stage. Developers must complete each stage before progressing, resulting in the software being implemented as the finished product at the project’s conclusion. Discovery Design Coding Testing Deployment Maintenance Suitable for: Projects with well-defined, unchanging requirements and objectives Projects where timeline and budget control is critical Animated V-model Software Development Life Cycle V-model The V-model is an extension of the Waterfall methodology that emphasizes testing in parallel with the development process. Each subsequent development phase can only start after testing for the previous stage, thus reducing the probability of defects and errors in the final product and ensuring high software quality. However, the focus on the testing activities can make the development time-consuming and costly. Suitable for: Projects that can use Waterfall but demand higher levels of quality and reliability Business req. specification System req. specification High level design Low level design Coding Acceptance testing System integration testing Component testing Unit testing Verification: Review of the product development process to find whether the requirements are met Validation: Confirmation that the software meets customer expectations post-development Scheme title: Software development life cycle in the V-model Rapid Application Development Rapid application development RAD promotes short development cycles and rapid delivery of functional software. This model focuses on iterative app development, where the project is broken down into smaller modules developed in parallel by different teams. The RAD model implies gathering requirements through focus groups, prototyping and early user testing to get customer feedback and accommodate possible requirement changes before the development starts. It also emphasizes reusing software components across the system, adhering to strict upfront dependencies planning and precise project scheduling and coordinating, extensive requirements elaboration and software design efforts, as well as a team of highly experienced analysts and architects. Suitable for: Projects where requirements can be identified upfront Systems that can be modularized Elicit requirements Modularize requirements Develop module 1 Develop module 2 Develop module N Team 1 Team 2 Team N Integrate all the modules Test the final product & deliver Analyze Design Code Test Scheme title: Process model for Rapid application development<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"coauthors":[],"class_list":["post-14018","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/pages\/14018","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/comments?post=14018"}],"version-history":[{"count":0,"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/pages\/14018\/revisions"}],"wp:attachment":[{"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/media?parent=14018"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/darksn.de\/en\/wp-json\/wp\/v2\/coauthors?post=14018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}