Any web development company follows some software engineering processes. Some of the companies follow UML and others follow ER Diagrams and Data Flow Diagrams. When we start to create any system, it is necessary to go step by step. Otherwise, we cannot build the system properly. The first and the foremost is system investigation.
System investigation is carried out by so many analysts. The investigation can be complex for large scale systems. An analyst would do ‘requirement investigation’ so that it can be recognized appropriately and after that the designing team would start designing. In ‘requirement investigation’ an analyst should keep contact with the customers to know what the system should do. They must inform developers about what the system requires.
Thorough planning, estimating the cost and the time required to develop the system are important. The analyst of a web development company should explain what the needs of the customer are. He should also describe the user interface to developers. Requirement analysis is costly. User data is collected and then structured data is collected which needs ‘use cases’ models. It can be included in system designing.
Designing defines the hardware and software architecture, interfaces, data etc for a system. The designing includes use case designing, database designing, user interface designing, investigation of use cases etc. Investigation of ‘use cases’ is done because different types of use cases are available. So, a system designer would find out the use case which is best suited for the system. Now comes testing of the system.
Testing would mainly focus on assessing the quality of the product and authenticate that the requirements are implemented properly. Good testing would show in what situation a product can fail. It challenges the risks involved. Testing is of two types i.e. manual testing and automation testing. Some companies use automation testing which needs some tools. Testing any software is more difficult. A tester must think about the negative things of the product.
After testing, next is implementation. It requires integration of the system and the subsystem, executing developer tests at the user’s site as per the client instruction. The use of implementation is to define organization, implementing design elements, testing the whole components as units. The person required for testing in any web development company needs domain knowledge, expertise in automation or manual testing and estimation of time required for the product to be delivered.
Now, the software needs some maintenance. Maintenance is the changes made in the software after delivery. It involves some changes to the software so that defects can be removed. If it is a major defect then it cannot be removed but if it is a minor change then it can be removed quickly. Even new functions can be added in existing software to improve its usability which can be used in future. Some models, tools and techniques are used for software maintenance. Different techniques are COCOMO II Model, Price Systems and SEER. So, all these processes are necessary for any web development company.