Download e-book for iPad: Eating the IT Elephant: Moving from Greenfield Development by Richard Hopkins
By Richard Hopkins
A pragmatic, Start-to-Finish method of coping with, Evolving, and reworking Legacy IT structures for each IT govt, supervisor, architect, software chief, undertaking chief, and lead analyst “Richard and Kevin introduce us to a truth that’s usually ignored in our undefined: the matter of evolving legacy platforms, a website they name ‘Brownfield development.’ The authors determine the foundation of the matter as that of complexity, and provide an technique that specializes in the basics of abstraction and effective verbal exchange to nibble at this challenge of transformation little by little. because the outdated announcing is going, how you consume the elephant is one chunk at a time. Richard and Kevin deliver us to the desk with knife and fork and different instruments, and exhibit us the way to consume this elephant within the room.” Grady Booch, IBM Fellow, co-creator of UML “Most organisations within the twenty first century have an latest, complicated structures panorama. it's time that the IT withstand the truth of the placement and the necessity for brand spanking new improvement equipment and instruments that handle it. This publication describes a brand new method of the advance of destiny structures: a based method that acknowledges the demanding situations of ‘Brownfield’ improvement, is predicated on engineering rules, and is supported by means of applicable tooling.” Chris iciness, CEng CITP FBCS FIET, IBM Fellow, Member of the IBM Academy of know-how most normal ways to IT improvement think that you’re construction totally new structures. at the present time, “Greenfield” improvement is a rarity. approximately each undertaking exists within the context of current, complicated approach landscapes--often poorly documented and poorly understood. Now, of IBM’s so much skilled senior architects provide a brand new procedure that's totally optimized for the original realities of “Brownfield” improvement. Richard Hopkins and Kevin Jenkins clarify why gathered enterprise and IT complexity is the foundation reason behind large-scale undertaking failure and express tips to conquer that complexity “one chew of the elephant at a time.” You’ll methods to deal with each section of the Brownfield undertaking, leveraging step forward collaboration, communique, and visualization tools--including internet 2.0, semantic software program engineering, model-driven improvement and structure, or even digital worlds. This ebook can help you reengineer new flexibility and agility into your IT environment…integrate extra successfully with partners…prepare for rising company demanding situations… enhance process reuse and value…reduce undertaking failure rates…meet any enterprise or IT problem that calls for the evolution or transformation of legacy structures. · System complexity: realize it, and harness it transcend the comforting phantasm of your high-level structure diagrams · How traditional improvement strategies really make issues worse Why conventional decomposition and abstraction don’t work--and what to do as a substitute · Reliably reengineer your IT in accordance with what you are promoting priorities New how you can comprehend, converse, visualize, collaborate, and remedy complicated IT difficulties · Cut the elephant all the way down to measurement, one step at a time grasp all 4 levels of a Brownfield undertaking: survey, engineer, settle for, and install
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Additional info for Eating the IT Elephant: Moving from Greenfield Development to Brownfield
Not only are the projects themselves complex, but the environments into which they deliver their new systems are, too. Why is complexity such an inhibitor for success? It's not the actual complexity that causes the problem—it is understanding and communicating that complexity. Consider the parable of the blind men and the elephant—a story so old, its origin is unclear: Once upon a time, not so long ago, three blind men were happily sitting together on the park bench that they frequented every day.
The project almost certainly would slip. In the worst of all worlds, the omission might not be noticed until the system went live and things started going awry with customers. At that point, the cost of fixing the requirements defect, Boehm suggests, would be $82,000—and that doesn't include the loss of reputation or consequential damage to the business. All in all, it's a good idea and good economics to catch defects as early as possible, especially if that defect is a requirement itself. The lack of an IT equivalent of a site survey causes many IT projects to fail.
2nd ed. McGraw-Hill, Inc. New York, NY, USA, 1996. 8. Gartner Executive Programs (EXP). Gartner CIO Survey. Gartner Inc, Stamford, CT/USA, 2006. 2. The Confusion of Tongues "The problem with communication ... " —George Bernard Shaw Chapter Contents Introducing Brownfield 25 Key Communication Problems 25 Overcoming Communication Complexity 34 Endnotes 35 In Chapter 1, "Eating Elephants Is Difficult," we introduced IT environmental complexity as the major roadblock for the successful delivery of big IT projects.
Eating the IT Elephant: Moving from Greenfield Development to Brownfield by Richard Hopkins