The National Academies Press

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Pages 29-43

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From page 29... ... 3.1 Introduction This chapter introduces fundamental concepts of the IT system lifecycle that can be applied to the aviation industry. As implied by its name, the lifecycle is the process of managing the entire life of a system, from its conception through design, implementation, and ongoing operations until it is removed or replaced. Read the entire page →
From page 30... ... Within the strategic planning phase, key tasks to accomplish include: • Airport master planning • IT master planning Figure 3-2 depicts the activities and outputs of the strategic planning phase. 30 Information Technology Systems at Airports–A Primer Strategic Planning Airport Master Planning IT Master Planning System Planning Concept Definition Cost–Benefit Analysis Funding Operations and Maintenance Help Desk Implementation Change Requests & New Requirements Project Charter Service Level Agreements (SLAs) Read the entire page →
From page 31... ... These outputs are all used as input to the next step, IT master planning. The IT System Lifecycle–A Common Process 31 Strategic Planning Airport Master Planning IT Master Planning Airport Master Plan IT Principles ITMPCapital Improvement Plan (CIP) Read the entire page →
From page 32... ... . The ITMP is built from the airport master plan. Read the entire page →
From page 33... ... The system definition becomes the basis for discussing the system's primary features and a starting The IT System Lifecycle–A Common Process 33 Appendix A Appendix A System Planning Concept Definition Cost–Benefit Analysis Funding Project Charter Concept of Operations System Definition Value Proposition Change Requests & New Requirements Figure 3-3. System planning phase. Read the entire page →
From page 34... ... Evaluating the value of proposed systems is one of the more difficult tasks airport executives undertake. Chapter 5, Evaluating IT Investments, describes a detailed process and provides a standard scoring mechanism that airports can use to perform this activity, which is summarized here for completeness of the lifecycle description. Read the entire page →
From page 35... ... This is a great opportunity to use the IT master plan to coordinate funding in the capital program so that outside funding is available when the project is slated to begin. Once the funding mechanisms are determined, the value proposition can be completed and a decision made about the overall value of the project in light of the following: • Available capital funding and external funding. Read the entire page →
From page 36... ... 36 Information Technology Systems at Airports–A Primer Table 3-2. Typical funding sources. Read the entire page →
From page 37... ... A critical tool developed at this stage is the project management plan, which serves as a guide for implementing the project methodically from start to finish. • Project management plan. Read the entire page →
From page 38... ... Collecting detailed, accurate requirements may require multidisciplinary teams with representatives from multiple organi38 Information Technology Systems at Airports–A Primer Implementation Project Planning Design Procurement Deployment Service Level Agreements (SLAs) System Documentation Project Management Plan System Specification Contract Procurement Documentation Project Charter Figure 3-5. Read the entire page →
From page 39... ... – Performance metrics. – Security requirements. Read the entire page →
From page 40... ... • Acceptance criteria. • Service level agreement and penalty clauses. Read the entire page →
From page 41... ... 3.5 Operations and Maintenance Phase The term operations refers to the ongoing use of the installed system to provide benefits enumerated in the value proposition and project charter. The O&M phase consists of the system's day-today operations as well as predictive and preventive maintenance such as periodically replacing hardware, deploying personnel to maintain the system, and putting end-user support processes, such as the help desk, in place. Read the entire page →
From page 42... ... Operations & Maintenance Help Desk Maintenance Performance Measures Trouble Tickets Service Level Agreements (SLAs) System Documentation System Administration User Feedback Change Request & New Requirements Figure 3-6. Read the entire page →
From page 43... ... • Trouble tickets are usually classified by type of issue, which determines the appropriate internal or external resource to address the malfunction. Until the issue is resolved, the trouble ticket is left open and the problem remains in the work queue, with issues of higher priority taking precedence in the workflow. Read the entire page →

From page 29...

... 3.1 Introduction This chapter introduces fundamental concepts of the IT system lifecycle that can be applied to the aviation industry. As implied by its name, the lifecycle is the process of managing the entire life of a system, from its conception through design, implementation, and ongoing operations until it is removed or replaced.