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9.351 Systems Analysis & Design
Planning 1
Chapter 4:
Business and Systems
Planning
9.351 Systems Analysis & Design
Planning 2
Planning
• Systems planning related to planning business.Systems must accomplish business goals.
• Business Planning:- Top-down (Top management, Steering committee)- Bottom-up approaches (User departments, Development group)
• There may be competing projects (upgrades, new ones, priorities…)
9.351 Systems Analysis & Design
Planning 3
• System Planning:
•the first stage in waterfall SDC.
•an iterative step (workflow) in OO-based SDC,
repeats across OO phases and possibly within them.
9.351 Systems Analysis & Design
Planning 4
• Main tasks in planning of a system:
•Write business case (economic
implications, feasibility assessment)
•Write Baseline Project Plan (BPP)
9.351 Systems Analysis & Design
Planning 5
• Business Case = Assessment of systems economic
implications and of feasibility of IS development project.
• Economic Implications:
•List of Benefits and Costs -> next
•Capital Budgeting Models (NPV, Break-Even…)
•Support to Value Chain
•Portfolio Analysis (compare risks with benefits; risks
assessed as technical feasibility)
9.351 Systems Analysis & Design
Planning 6
Reduced execution time
9.351 Systems Analysis & Design
Planning 7
One-time tangible costs
Recurring tangible costs
9.351 Systems Analysis & Design
Planning 8
Net Present Value
PVn = present value of Y dollars n years from now
based on a discount rate of i.
NPV = sum of PVs across years.More:NPV
*
9.351 Systems Analysis & Design
Planning 9
9.351 Systems Analysis & Design
Planning 10
9.351 Systems Analysis & Design
Planning 11
• Feasibility Assessment:
• Economic feasibility (result of analysis of economic
implications)
• Technical feasibility (development capability &
risks) most important!
• Operational feasibility (support to business)
• Schedule feasibility
• Legal feasibility
• Political feasibility
9.351 Systems Analysis & Design
Planning 12
Technical Feasibility
9.351 Systems Analysis & Design
Planning 13
High technical familiarity mitigates risk due to project size and structure. Low familiarity increases risk.
Technical Feasibility
9.351 Systems Analysis & Design
Planning 14
Baseline Project Plan (BPP); see Fig. 4-14
Content:
•Project Name (usually system’s name)
•Introduction
•Project Scope (what organizational parts it affects)
•System Description
•Economic implications
•Feasibility
•Management (workers, lines of reporting…)