Cloud Services For Dummies, IBM Limited Edition  iv These materials are the copyright of John Wiley & Sons, Inc. and any  dissemination, distribution, or unauthorized use is strictly prohibited. Chapter 3: Diving into Cloud Economics . . . . . . . . . . . . .25 Developing an Economic Strategy ......................................... 26 Comparing traditional models with the cloud........... 26 Finding the value............................................................ 27 Exploring the Costs.................................................................. 29 What you save or gain with cloud services................ 32 Cost calculating.............................................................. 32 Assessing workloads........................................... 33 Using a cost estimator tool ................................ 33 Chapter 4: Managing Cloud Workloads and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 Understanding Workloads ...................................................... 36 Looking at Workload Use Cases............................................. 37 Analytics workload........................................................ 37 Batch workloads ............................................................ 38 Looking at the Principles of Workload Management .......... 39 Seeing Workload Management in a Hybrid Cloud ............... 39 Connecting Workloads in the Cloud...................................... 40 The importance of APIs ................................................ 41 A standard workload layer ........................................... 41 Portability of workloads ............................................... 42 Managing and Monitoring Workloads ................................... 42 Tracking workloads....................................................... 43 Asking the right questions............................................ 43 Chapter 5: Improving Security, Governance, and Cloud Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Finding out Why Cloud Security Matters.............................. 45 Establishing a Cloud Governance Strategy........................... 48 Governance issues in the cloud................................... 48 Risks worth noting......................................................... 49 Making cloud governance work................................... 50 Managing Service Levels ......................................................... 50 Developing a Secure, Accountable, and Reliable Cloud Environment ............................................... 52 Assessing your current state ....................................... 53 Implementing security best practices......................... 54