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In software engineering, a walkthrough or walk-through is a form of software peer review "in which a designer or programmer leads members of the development team and other interested parties through a software product, and the participants ask questions and make comments about possible errors, violation of development standards, and other problems". [1]
MIL-STD-498 standard describes the development and documentation in terms of 22 Data Item Descriptions (DIDs), which were standardized documents for recording the results of each the development and support processes, for example, the Software Design Description DID was the standard format for the results of the software design process.
Software management reviews are conducted by management representatives to evaluate the status of work done and to make decisions regarding downstream activities. Software audit reviews are conducted by personnel external to the software project, to evaluate compliance with specifications, standards, contractual agreements, or other criteria.
For example, even within the U.S. Department of Defense, System Requirements Review cases include, for example, (1) a 5-day perusal of each individual requirement, or (2) a 2-day discussion of development plan documents allowed only after the system requirements have been approved and the development documents reviewed with formal action items ...
A walkthrough is a scheduled meeting with the author in charge of the model or documents that are set to be reviewed. In addition to the authors, there is usually a group of senior technical staff and possibly business staff that help analyze the model. Typically, there is also a facilitator who is in charge of leading the meeting.
The National Software Quality Experiment, [2] evaluating the effectiveness of peer reviews, finds, "a favorable return on investment for software inspections; savings exceeds costs by 4 to 1". To state it another way, it is four times more costly, on average, to identify and fix a software problem later.
Software walkthroughs draw selectively upon the elements in assisting the producer to obtain the deepest understanding of an artifact and reaching a consensus among participants. Measured results reveal that Peer Reviews produce an attractive return on investment obtained through accelerated learning and early defect detection.
The pluralistic walkthrough (also called a participatory design review, user-centered walkthrough, storyboarding, table-topping, or group walkthrough) is a usability inspection method used to identify usability issues in a piece of software or website in an effort to create a maximally usable human-computer interface.