By Scott W. Ambler

The Rational Unified procedure is a robust software for making improvements to software program improvement - however it does not pass approximately a ways adequate. contemporary improvement corporations have to expand RUP to hide the whole IT lifecycle, together with the cross-project and firm matters it mostly ignores. The company Unified strategy (EUP) does accurately that, allowing you to bring platforms that meet all of the wishes of cutting-edge companies. Now, EUP's writer and designers current the definitive creation to EUP, and show easy methods to use it on your surroundings.

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This may speed up the rate at which new releases are deployed and retired but will complicate your development efforts because you will have two teams updating the same code base. Figure 4-4. Sample timeline of overlapping development and production efforts. [View full size image] When you release a new version of a product, support for the older version(s) does not normally end immediately. 0 for a lesser period (say six more months). 0 than the older versions, and you may even charge for support for the really old version, but you can't cut off support for clients who haven't upgraded until they've had a reasonable period of time to do so (or are willing to pay for continued support).

They do this by reviewing the changes that were made to the artifacts after the branch occurred and merging them into their base code. The old code base can be archived and removed if support for the older version is being discontinued; otherwise, both code bases must continue to be supported and evolved. Support Strategies Your organization may opt to offer different levels of support to your customers. Tourniaire and Farrell (1997) describe two basic strategies for delivering supportan escalation strategy and a touch-and-hold strategy.

Multiple versions of a single system may have to be supported at the same time. In addition, multiple levels of support may be implemented, sometimes depending on the support a client is willing to pay for. The Production phase for a system ends when support for that release of the system has been withdrawn. Suggested Reading Information Technology Infrastructure Library (ITIL 2003) is a comprehensive process that focuses on post-development activities. Chapter 5. The Retirement Phase Reader ROI • The Retirement phase defines the activities executed to remove a system (or an older release of the system) from your production environment.

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