By Dean Leffingwell
“We desire higher ways to knowing and handling software program specifications, and Dean offers them during this booklet. He attracts principles from 3 very beneficial highbrow swimming pools: classical administration practices, Agile tools, and lean product improvement. by way of combining the strengths of those 3 ways, he has produced whatever that works higher than anybody in isolation.” –From the Foreword by means of Don Reinertsen, President of Reinertsen & affiliates; writer of handling the layout manufacturing unit; and prime professional on quick product improvement potent necessities discovery and research is a severe top perform for severe program improvement. beforehand, even though, specifications and Agile equipment have not often coexisted peacefully. for lots of organizations contemplating Agile ways, the absence of potent and scalable Agile specifications techniques has been a showstopper for Agile adoption. In Agile software program necessities, Dean Leffingwell indicates precisely how one can create potent necessities in Agile environments. half I offers the “big photo” of Agile standards within the firm, and describes an total technique version for Agile standards on the undertaking group, software, and portfolio degrees half II describes an easy and light-weight, but accomplished version that Agile venture groups can use to control specifications half III exhibits the way to boost Agile specifications for complicated platforms that require the cooperation of a number of groups half IV courses businesses in constructing Agile necessities for ever-larger “systems of systems,” program suites, and product portfolios This booklet can assist you leverage some great benefits of Agile with out sacrificing the worth of powerful specifications discovery and research. You’ll locate confirmed options you could practice correct now–whether you’re a software program developer or tester, government, project/program supervisor, architect, or staff chief.
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Extra info for Agile Software Requirements: Lean Requirements Practices for Teams, Programs, and the Enterprise (Agile Software Development Series)
Sample text
This kind of hard data, plus our aggregate personal experiences, led us to a “tipping point” that warranted serious consideration of substantially different process models for the industry, and indeed they did evolve in due course. And Yet, the Waterfall Model Is Still Amongst Us Even in light of this evidence, however, the waterfall model is still in widespread use today, as Figure 1–5 implies. Given its deficiencies, one wonders why that may be the case in 2010 and beyond. Perhaps there are a number of understandable reasons.
We all know how well that worked out. So, it certainly does appear from the data that attempting to fix the requirements up front and then carefully control change and use quality as the team’s variable was a fundamentally flawed set of assumptions on which to base a software process model. This kind of hard data, plus our aggregate personal experiences, led us to a “tipping point” that warranted serious consideration of substantially different process models for the industry, and indeed they did evolve in due course.
Com> 22 c haPteR 1 a B Rief h istoRy of s oftwaRe R equiRements m ethods The first four elements—the roof, pillars 1 and 2, and the foundation—provide the philosophical framework for lean software thinking. The fifth element, the product development flow, describes the specific lean principles we’ll apply throughout this book. We’ll describe each of the elements of the house of lean in the following sections. Roof, the Goal: Sustainably Delivering Value Fast The goal of lean is unarguable: to deliver the maximum amount of value to the customer in the shortest possible time frame.
