The latest articles on DEV Community by Akash Deep Vishwakarma (@adv11). https://dev.to/adv11 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F733481%2Fd3d83073-9306-49a5-8657-47d774acdb55.jpeg https://dev.to/adv11 en Akash Deep Vishwakarma Tue, 30 Apr 2024 08:56:31 +0000 https://dev.to/adv11/challenges-faced-while-developing-enterprise-applications-ea-2kbl https://dev.to/adv11/challenges-faced-while-developing-enterprise-applications-ea-2kbl <p>Developing Enterprise Applications includes 2 requirements.</p> <ul> <li><strong>Functional Requirements (FR)</strong></li> <li><strong>Non-Functional Requirements (NFR)</strong></li> </ul> <ol> <li> <strong>Functional Requirements (FR)</strong>:</li> </ol> <ul> <li>FR's are the requirements which are taken care by the programmers.</li> <li>These are the functions that the system should perform.</li> <li>Example: <strong>Generation of reports is an FR.</strong> </li> </ul> <ol> <li> <strong>Non-Functional Requirements (NFR)</strong>:</li> </ol> <ul> <li>NFR's can't be handled by the programmers.</li> <li>These are the constraints that the system must work with in.</li> <li>Example: <strong>Reducing the response time of generation of reports</strong>.</li> </ul> <p><strong>Types of NFR's?</strong></p> <ul> <li>Reliability</li> <li>Portability</li> <li>Performance</li> <li>Security</li> <li>Scalability</li> <li>Usability</li> <li>Availability</li> <li>Maintainability</li> </ul> <p><strong>How to address NFR's?</strong></p> <ol> <li><p>To address NFR's, application developers build their applications using <strong>Application Servers</strong>.</p></li> <li><p>Application Servers provide all the system services to address NFR's such as:<br> a. Data Integrity<br> b. Resource Management<br> c. Security</p></li> </ol> <p><strong>Need for identifying NFR's in EA?</strong></p> <ol> <li><p>EAs should be flexible enough to apply future changes - (Maintainability, Scalability)</p></li> <li><p>EAs should be able to communicate to many users at a single point in time - (Availability, Concurrency)</p></li> <li><p>Should ensure that the system is easily operated by the users - (Usability)</p></li> <li><p>Data should be protected - (Security)</p></li> <li><p>Reusability of the code when the application will be shifted from one environment to another - (Portability) </p></li> <li><p>Based on the result of the EAs, decisions are taken - (Reliability)</p></li> </ol> java softwaredevelopment development programmers