Component 4: Introduction to Information and Computer Science Unit 9/Part f: Components and Development of Large Scale Systems.

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Presentation transcript:

Component 4: Introduction to Information and Computer Science Unit 9/Part f: Components and Development of Large Scale Systems

System Security CIA triangle – Confidentiality – Integrity – Availability Risk Management – Risk identification – Risk assessment – Risk control Component 4/Unit 9f2 Health IT Workforce Curriculum Version 1.0/Fall 2010

Physical Security Operations center security Servers, desktop computers, notebook, laptop and tablet computers Network security Application security File security User security Procedural security Component 4/Unit 9f3 Health IT Workforce Curriculum Version 1.0/Fall 2010

Backup and Recovery Backup policies – Backup media – Types of backups – Retention periods Business continuity issues – Hot site – Data replication – Business insurance Component 4/Unit 9f4 Health IT Workforce Curriculum Version 1.0/Fall 2010

System Obsolescence No longer supports users needs Platform becomes out-dated Reaches the end of its economically useful life Component 4/Unit 9f5 Health IT Workforce Curriculum Version 1.0/Fall 2010

Topic III: Financial Support The process of financially supporting large scale systems over time. Positive and cost-avoidance benefits Component 4/Unit 9f6 Health IT Workforce Curriculum Version 1.0/Fall 2010

Costs and Benefits Economic Feasibility Total Cost of Ownership (TCO) – Acquisition costs – Ongoing support – Maintenance costs Component 4/Unit 9f7 Health IT Workforce Curriculum Version 1.0/Fall 2010

Cost-Benefit Analysis Payback Analysis – Time it takes to recover the system cost Return on Investment (ROI) – Project return vs project investment Present Value Analysis – Net present value (NPV) Component 4/Unit 9f8 Health IT Workforce Curriculum Version 1.0/Fall 2010

Cost Classifications Developmental Tangible Direct Fixed Operational Intangible Indirect Variable Component 4/Unit 9f9 Health IT Workforce Curriculum Version 1.0/Fall 2010

Allocating Costs No charge Fixed charge Variable charge based on resource usage Variable charge based on volume Component 4/Unit 9f10 Health IT Workforce Curriculum Version 1.0/Fall 2010

SUMMARY Described the building blocks of a large scale system Explained the initial design process/options for a large scale system Described the evaluation process/criteria for including and selecting existing software applications Described the process for new software development Described the different types of testing and when testing should occur Described systems maintenance Explained the process of financially supporting large scale systems over time Component 4/Unit 9f11 Health IT Workforce Curriculum Version 1.0/Fall 2010

Future Challenges & Opportunities Predictions Strategic Planning Credentials and Certification Component 4/Unit 9f12 Health IT Workforce Curriculum Version 1.0/Fall 2010

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