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Chapter 7

Chapter 7. Infrastructure, Cloud Computing, Metrics, and Business Continuity Planning: Building and Sustaining the Dynamic Enterprise. STUDENT LEARNING OUTCOMES. Describe how an SoA can be used as a philosophical approach to help the organization of the future.

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Chapter 7

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  1. Chapter 7 Infrastructure, Cloud Computing, Metrics, and Business Continuity Planning: Building and Sustaining the Dynamic Enterprise

  2. STUDENT LEARNING OUTCOMES • Describe how an SoA can be used as a philosophical approach to help the organization of the future. • Define and describe the various hardware and software infrastructure considerations. • Describe cloud computing, its various implementations, and its advantages.

  3. STUDENT LEARNING OUTCOMES • Compare and contrast commonly used metrics for assessing the success of IT systems. • Describe business continuity planning (BCP) and its phases.

  4. MONEY WILL ALWAYS BE MONEY The use of paper money is on the decline; the use of electronic money has more than doubled in the past 10 years.

  5. Questions • Do you use an electronic form of money such as Google wallet or a smartphone app? If so, which one? • Which do you think is easier—the counterfeiting of paper money or the counterfeiting of electronic money? Why? • Why does the government continue to mint pennies when the process costs more than a penny?

  6. INTRODUCTION: SoA • Service-oriented architecture (SoA) - perspective that focuses on the development, use, and reuse of small self-contained blocks of code (called services) to meet all application software needs • Software code is not developed solely for a single application • Rather services are built that can be reused

  7. INTRODUCTION: SoA • Can extend SoA to the entire organization to be • Lean and agile using resources in the best way • Proactive in addressing changes in the market • Quick to respond and adapt to advances in technology • Transformational in its processes, structure and HR initiatives to match a changing and dynamic workforce

  8. INTRODUCTION: SoA • SoA focused specifically on IT • Customers • End users • Software development • Information needs • Hardware requirements

  9. INTRODUCTION: SoA

  10. INTRODUCTION: SoA

  11. INTRODUCTION: SoA

  12. INTRODUCTION: SoA

  13. HARDWARE AND SOFTWARE INFRASTRUCTURE • Infrastructure – the structure beneath a structure • IT infrastructure is the implementation of your organization’s architecture

  14. ERP Revisited • From Chapter 2, Enterprise resource planning (ERP) system – collection of integrated software for business management, accounting, finance, supply chain management, inventory management, customer relationship management, e-collaboration, etc

  15. ERP and SoA

  16. Supporting Network Infrastructures • Computer network – fundamental underlying infrastructure for any IT environment • Distributed • Client/server • Tiered

  17. Distributed Network Infrastructure • Distributed – distributing the information and processing power of IT systems via a network • First true network infrastructure • Processing activity is allocated to the location(s) where it can most efficiently be done

  18. Distributed Network Infrastructure

  19. Client/Server Infrastructure • Client/server infrastructure (network) • one or more computers that are servers • provide services to other computers, called clients • Servers and clients work together to optimize processing, information storage, etc • When you surf the Web, the underlying network infrastructure is client/server

  20. Client/Server Infrastructure

  21. Tiered Infrastructure • Tiered (layer) – the IT system is partitioned into tiers (layers) where each tier performs a specific type of functionality • 1-tier – single machine • 2-tier – basic client/server relationship • 3-tier – client, application server, data or database server • N-tier – scalable 3-tier structure with more servers

  22. Tiered Infrastructure

  23. CLOUD COMPUTING • Hottest term in technology today • Cloud computing – model in which any and all IT resources are delivered as a set of services via the Internet • Application software • Processing power • Data storage • Backup facilities • Development tools • Literally everything

  24. CLOUD COMPUTING

  25. Cloud Computing Goals • Pay for only what you need and use • Real-time scalability (up or down) • Align computing costs with level of business activity • Reduce fixed costs in IT infrastructure

  26. Many Implementations of the Cloud • Software-as-a-service (SaaS) • Platform-as-a-service (PaaS) • Infrastructure-as-a-service (IaaS) • Cloud demo video • Demo video of IaaS

  27. Software-As-A-Service • SaaS - delivery model for software in which you pay for software on a pay-per-use basis instead of buying the software outright. • Most well known • Supports multi-tenancy • multiple people can simultaneously use a single instance of a piece of software.

  28. Platform-As-A-Service • PaaS – delivery model for software identical to SaaS with the additional features of • Access to software development tools to alter the way in which the software works by adding new modules (services) and/or making modifications to existing modules • The ability to customize data entry forms, screens, reports, and the like

  29. Infrastructure-As-A-Service • IaaS - model in which you acquire all your technology needs—storage hardware and data, network equipment, application software, operating system software, data backups, CPU processing capabilities, anti-you-name-it software—in the cloud. • All you need – smartphone/tablet and peripheral devices (e.g., printer)

  30. Public and Private Clouds • Public cloud – comprises cloud services that exist on the Internet offered to anyone and any business. • Amazon Web Services (AWS) • Windows Azure • Rackspace Cloud • Google Cloud Connect • ElasticHosts

  31. Public and Private Clouds • Private cloud • cloud computing services established and hosted by an organization • on its internal network • available only to employees and departments within that organization. • All benefits of cloud computing, except held private within an organization • Of course does COST more

  32. Advantages of the Cloud • Lower capital expenditures • Lower barriers to entry • Immediate access to a broad range of application software • Real-time scalability

  33. IT SUCCESS METRICS • To justify costs of technology, you need to measure its success • Metrics are also called benchmarks, baseline values a system seeks to attain. • Benchmarking – process of continuously measuring system results and comparing them to benchmarks

  34. Efficiency & Effectiveness Metrics • Efficiency – doing something right • In the least time • At the lowest cost • With the fewest errors • Effectiveness – doing the right things • Getting customers to buy when they visit your site • Answering the right question with the right answer the first time

  35. Efficiency & Effectiveness Metrics Bottom-line initiatives typically focus on efficiency, while top-line initiatives tend to focus on effectiveness.

  36. Types of IT Success Metrics • Infrastructure-centric metrics • Web-centric metrics • Call center metrics

  37. Infrastructure-Centric Metrics • Measure of efficiency, speed, capacity • Throughput – amount of information that can pass through a system in a given amount of time • Transaction speed – speed at which a system can process a transaction • System availability – the average amount of time a system is down or unavailable

  38. Infrastructure-Centric Metrics • Accuracy – measured inversely as error rate, or the number of errors per thousand/million that a system generates • Response time – average time to respond to a user-generated event like a mouse click • Scalability – conceptual metric related to how well a system can be adapted to increased demands

  39. Web-Centric Metrics • Measure success of your e-business initiatives • Unique visitors – # of unique visitors to a site • Total hits – number of visits to a site • Page exposures – average page exposures to an individual visitor • Conversion rate - % of potential customers who visit and actually buy

  40. Web-Centric Metrics • Click-through - # of people who click on an ad and are taken to the sponsor’s site • Cost-per-thousand(CPM) – cost of ad per thousand customer views or clicks • Abandoned registrations - # who start to register at your site and then abandon the process • Abandoned shopping carts - # who create a shopping cart and then abandon it

  41. Call Center Metrics • Abandon rate - % number of callers who hang up while waiting for their call to be answered • Average speed to answer (ASA) – average time, usually in seconds, that it takes for a call to be answered by an actual person • Time service factor (TSF) - % of calls answered within a specific time frame, such as 30 or 90 seconds • First call resolution (FCR) - % of calls that can be resolved without having to call back

  42. BUSINESS CONTINUITY PLANNING • Business continuity planning (BCP) – rigorous and well-informed organizational methodology for developing a business continuity plan, a step-by-step guideline defining how the organization will recover from a disaster or extended disruption • BCP is very necessary today given terror threats, increased climate volatility, etc

  43. BUSINESS CONTINUITY PLANNING METHODOLOGY

  44. BCP METHODOLOGY • Organizational strategic plan • Analysis • Design • Implementation • Testing • Maintenance

  45. Organizational Strategic Plan • It all starts here • The strategic plan defines what is and what is not important • You must have a business continuity plan for what is important

  46. Analysis • Impact analysis – risk assessment, evaluating IT assets, their importance, and susceptibility to threat • Threat analysis – document all possible major threats to organizational assets • Impact scenario analysis – build worst-case scenario for each threat • Requirement recovery document – identifies critical assets, threats to them, and worst-case scenarios

  47. Design • Build disaster recovery plan, detailed plan for recovering from a disaster. May include • Collocation facility – rented space and telecommunications equipment • Hot site – fully equipped facility where your company can move to • Cold site – facility where your company can move to but has no computer equipment

  48. Design Disaster recovery plan should include a disaster recovery cost curve, which charts the cost of unavailable information/technology compared to the cost to recover from a disaster over time.

  49. Implementation • Engage any businesses that will provide collocation facilities, hot sites, and cold sites • Implement procedures for recovering from a disaster • Train employees • Evaluate each IT system to ensure that it is configured optimally for recovering from a disaster

  50. Testing • As opposed to traditional SDLC, testing in BCP methodology occurs after implementation • Simulate disaster scenarios • Have employees execute disaster recovery plans • Evaluate success and refine as necessary

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