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Cloud Computing: Concepts, Technology & Architecture by Zaigham Mahmood, Thomas Erl, Ricardo Puttini

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Appendix A. Case Study Conclusions

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A.1 ATN

A.2 DTGOV

A.3 Innovartus

This appendix briefly concludes the storylines of the three case studies that were first introduced in Chapter 2.

A.1. ATN

The cloud initiative necessitated migrating selected applications and IT services to the cloud, allowing for the consolidation and retirement of solutions in a crowded application portfolio. Not all of the applications could be migrated, and selecting appropriate applications was a major issue. Some of the chosen applications required significant re-development effort to adapt to the new cloud environment.

Costs were effectively reduced for most of the applications ...

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