Sdlc pdf

Appropriate test cases are developed for each set of functionally related software artifacts and an online help system is developed to guide users in their interactions with the software. The RTM is updated to show that each developed artifact is linked to a specific design element and that each developed artifact has one or more corresponding test case items.

At this point, the RTM is in its final configuration. The outputs of the development stage include a fully functional set of software that satisfies the requirements and design elements previously documented, an online help system that describes the operation of the software, an Implementation Map IMP that identifies the primary code entry points for all major system functions, a Software Test Plan STP that describes the test cases to be used to validate the correctness and completeness of the software, an updated RTM, and an updated CIP or SPMP.

At this point, all test cases are run to verify the correctness and completeness of the software. Successful execution of the test suite confirms a robust and complete migration capability. During this stage, reference data is finalized for production use and production users are identified and linked to their appropriate roles. The final reference data or links to reference data source files and production user list are compiled into the Deployment Plan DP.

At this point, acceptance test cases are run to verify the correctness and completeness of the software. Successful execution of the test suite is a prerequisite to acceptance of the software by the customer.

After customer personnel have verified that the initial production data load is correct and the test suite has been executed with satisfactory results, the customer formally accepts the delivery of the software.

Finally, the PDR enters the last of the actual labor data into the component or project schedule and locks the component or project as a permanent project record by archiving all software items, the implementation map, the source code files, and the documentation for future reference. To accomplish this, the SDLC relies on five primary concepts: Domain Segregation Scope Restriction Progressive Enhancement Pre-defined Structure Incremental Planning These concepts combine to mitigate the most common risks associated with software development efforts.

The end-user community for each component is composed of domain-specific subject matter experts. Participants for a specific component are specialists in the domain covered by the component, and naturally maintain a higher quality of interaction and level of interest in the development effort. These goals are subsequently refined into requirements, then design elements, then software artifacts.

This hierarchy of goals, requirements, design elements, and artifacts is documented in a Requirements Traceability Matrix RTM. The RTM serves as a control element to restrict the project to the originally defined scope. New ideas and significant changes to the high-level requirements are binned to a separate issues list for consideration by the Configuration Control Board CCB at the planning session for the next version of the component or project.

This minimizes scope creep, which is a leading cause of software project failure. Additional information is then gathered, using methods specific to each stage. As a result, the outputs of the previous stage are progressively enhanced with additional information. By establishing a pattern of enhancing prior work, the project precludes the insertion of additional requirements in later stages.

New requirements are formally set aside by the development team for later reference, rather than going through the effort of backing the new requirements into prior stage outputs and reconciling the impacts of the additions.

As a result, the project participants maintain a tighter focus on the original product goals, minimize the potential for scope creep, and show a preference for deferring out-of-scope enhancements, rather than attempting to incorporate them into the current effort.

The project participants quickly grow accustomed to this repetitive pattern of effort as they progress from stage to stage. In essence, these processes establish a common rhythm, or culture, for the project. This pre-defined structure for each stage allows the project participants to work in a familiar environment, where they know what happened in the past, what is happening in the present, and have accurate expectations for what is coming in the near future.

This engenders a high comfort level, which in turn generates a higher level of cooperation between participants. Participants tend to provide needed information or feedback in a timelier manner, and with fewer miscommunications. This timely response pattern and level of communications quality becomes fairly predictable, enhancing the ability of the PDR to forecast the level of effort for future stages.

In this SDLC, the project planning effort is restricted to gathering metrics on the current stage, planning the next stage in detail, and restricting the planning of later stages, also known as Out Stages, to a very high level. The SPMP or CIP is updated as each stage is completed; current costs and schedule to date are combined with refined estimates for activities and level of effort for the next stage.

The activities and tasks of the next stage are defined only after the deliverables for the current stage are complete and the current metrics are available. This allows the planner to produce a highly accurate plan for the next stage. Direct experience has shown that it is very difficult to develop more than a cursory estimate of anticipated structure and level of effort for out stages.

The estimates for out stages are included to allow a rough estimate of ultimate project cost and schedule. The estimates for out stages are reviewed and revised as each stage is exited. As a result, the total project estimate becomes more and more accurate over time. As each stage is exited, the updated project plan and schedule is presented to the customer.

The customer is apprised of project progress, cost and schedule, and the actual metrics are compared against the estimates. This gives the customer the opportunity to confirm the project is on track, or take corrective action as necessary. The customer is never left in the dark about the progress of the project.

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Original Title sdlc. Did you find this document useful? Is this content inappropriate? Report this Document. This is an additional phase, and in many cases, this phase does not come under the count of SDLC , when your customer s begin using your product and encounter with some issues which they want us as developers to fix from time to time.

The developer fixes the issue, and software testers test the product and hand it over the back to the customer. JavaScript Tutorials jQuery Tutorials. Table of Contents. What is SDLC? Phases of the Software Development Life Cycle. Third Phase: Designing Phase.

Fourth Phase: Building or Coding Phase. Fifth Phase: Testing Phase. Sixth Phase: Deployment Phase. This site uses Akismet to reduce spam. Learn how your comment data is processed.

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