System Analysis and Design

1
Introduction

• Project management fundamentals
• Initiating projects
• Determining project feasibility
• scheduling projects
• planning
• managing activities

2
Project Initiation

• identifying problems
• defining the problem
• selecting projects

3
Identifying Problems

• Performance
• errors, slow, incomplete
• employee
• absenteeism, dissatisfaction, tardiness
• external feedback from
• vendors, customers, suppliers

4
Determining Feasibility

• Objectives
• improvements
• Resources
• Technical
• Economic
• Operational

5
Scheduling

• Time estimation
• analysis
• design
• implementation
• Methods
• Gantt Chart
• PERT (critical path)
• (Program Evaluation and Review Techniques)
• Microsoft Project

6
GANTT Chart

• Incomplete activity
• Completed activity
• Partially completed activity

7
PERT

• Critical Path

8
Listing form of PERT

• Predecessor (A) means no predecessor for
  activity A
• Predecessor (B) means no predecessor for
  activity B
• Predecessor (C) A means the predecessor for C
  is A
• Predecessor (E) C, D means the predecessors
  for E are C and D
• Predecessor (D) B
• Duration (A) 4
• Duration (B) 2
• Duration (C) 5
• Duration (D) 3
• Duration (E) 6
• Activities A, B, C, D, E

9
PERT Diagram Cont.

• Activities A, B, C, D, E
• Events 10, 20, 30, 40, 50
• P(A), P(B), P(C)A, P(D)B, P(E)C, D
• D(A)4, D(B)2, D(C)5, D(D)3, D(E)6

10
PERT Example

• Activities A, B, C, D, E, F, G
• P(A), P(B), P(C)A, P(D)P(E)B
• P(F) P(G)C, D, P(H)G, E
• D(A)4, D(B)3, D(C)4, D(D)3, D(E)5
• D(F)2, D(G)7, D(H)4

11
PERT Example Cont.

• a

F, 2
12
Agile Approach

• Also called
• Agile development
• Agile methods
• Alternative way to develop systems

13
Resource Trade-Offs

• Resource control variables
• Time
• finishing on time
• 80/20 rule 80 satisfied with 20 of the
  functionality
• Cost
• Quality

14
Agile Practices

• Core Agile Practices
• Short release
• 40-hour work week
• Onsite customer
• Pair programming

15
Risk Handling

• Risk handling in Agile Approach
• Resource
• Quality, Cost, Scope, Time
• Activities
• Designing, Testing, Coding, Listening

16
Development Process

• Development process for an agile project
• Exploration
• Planning
• Iteration to the first release
• Production release
• Maintenance