<Li> Acceptance, installation, deployment: The final stage of initial development, where the software is put into production and runs actual business . </Li> <Li> Maintenance: During the maintenance stage of the SDLC, the system is assessed to ensure it does not become obsolete . This is also where changes are made to initial software . It involves continuous evaluation of the system in terms of its performance . </Li> <Li> Evaluation: Some companies do not view this as an official stage of the SDLC, while others consider it to be an extension of the maintenance stage, and may be referred to in some circles as post-implementation review . This is where the system that was developed, as well as the entire process, is evaluated . Some of the questions that need to be answered include: does the newly implemented system meet the initial business requirements and objectives? Is the system reliable and fault - tolerant? Does the system function according to the approved functional requirements? In addition to evaluating the software that was released, it is important to assess the effectiveness of the development process . If there are any aspects of the entire process, or certain stages, that management is not satisfied with, this is the time to improve . Evaluation and assessment is a difficult issue . However, the company must reflect on the process and address weaknesses . </Li> <Li> Disposal: In this phase, plans are developed for discarding system information, hardware and software in making the transition to a new system . The purpose here is to properly move, archive, discard or destroy information, hardware and software that is being replaced, in a manner that prevents any possibility of unauthorized disclosure of sensitive data . The disposal activities ensure proper migration to a new system . Particular emphasis is given to proper preservation and archival of data processed by the previous system . All of this should be done in accordance with the organization's security requirements . </Li>

Process of design documentation during project life cycle