By Dean Leffingwell
“We want greater methods to realizing and coping with software program necessities, and Dean offers them during this ebook. He attracts rules from 3 very invaluable highbrow swimming pools: classical administration practices, Agile equipment, and lean product improvement. through combining the strengths of those 3 techniques, he has produced anything that works higher than anybody in isolation.” –From the Foreword through Don Reinertsen, President of Reinertsen & affiliates; writer of dealing with the layout manufacturing facility; and top professional on speedy product improvement potent specifications discovery and research is a severe most sensible perform for severe program improvement. formerly, in spite of the fact that, requisites and Agile tools have hardly coexisted peacefully. for lots of companies contemplating Agile methods, the absence of powerful and scalable Agile requisites strategies has been a showstopper for Agile adoption. In Agile software program requisites, Dean Leffingwell indicates precisely tips on how to create powerful necessities in Agile environments. half I provides the “big photograph” of Agile requisites within the firm, and describes an total approach version for Agile specifications on the venture workforce, software, and portfolio degrees half II describes an easy and light-weight, but entire version that Agile undertaking groups can use to regulate necessities half III indicates tips on how to advance Agile necessities for complicated platforms that require the cooperation of a number of groups half IV publications corporations in constructing Agile standards for ever-larger “systems of systems,” software suites, and product portfolios This ebook can help you leverage some great benefits of Agile with no sacrificing the worth of powerful specifications discovery and research. You’ll locate confirmed recommendations you could observe correct now–whether you’re a software program developer or tester, govt, project/program supervisor, architect, or workforce chief.
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Extra info for Agile Software Requirements: Lean Requirements Practices for Teams, Programs, and the Enterprise (Agile Software Development Series)
I’d like to thank Don Reinertsen, who provided permission to use elements of his breakthrough text, Principles of Product Development Flow: Second Generation Lean Product Development. The principles from his book helped me truly understand things I thought I understood before (even if it did cause me to rework some chapters). Thanks to Alistair Cockburn, who contributed directly to the use-case chapter, and other agile thought leaders whose work I have, I hope, acknowledged appropriately. I am particularly appreciative of those individuals who contributed so much to the intellectual content in the book.
Decentralize control: The faster we go, the less practical it is to have decisions move up and then back down the chain of command. Delays in decision making slow feedback and simultaneously decrease the fidelity of the decision, because of the decay in fact patterns that occur in the waiting time. Teams must be empowered to make decisions and act quickly and efficiently. There is little danger because the faster the feedback, the faster even a poor decision can be corrected. These eight themes provide an economic, quantitative, and mathematically proven substrate for lean and agile software lean requirements management.
Use cumulative flow diagrams to manage throughput. Understand and exploit variability: In manufacturing, variability must be minimized to create predictable results, efficiency, and quality. In software development, variability is inherent. Instead of eliminating variability, we must design systems that expect and address variability and even exploit it when appropriate. Reduce batch sizes: Large batch sizes create unnecessary variability and cause severe delays in delivery and quality. The most important batch is the transport (handoff) batch between teams and between roles within a team.
Agile Software Requirements: Lean Requirements Practices for Teams, Programs, and the Enterprise (Agile Software Development Series) by Dean Leffingwell