Fit2001 for week 3

Lecture 3
1. The analysis phase in more detail
a) Gather information : what the user wants
b) Define requirements: what we will build
c) Prioritize requirements
d) Prototype for feasibility and discovery
e) Generate and evaluate alternatives
f) Review recommendations with management
2. System requirements: new system capabilities and constraints
a) Functional requirements: activities system must perform
b) Nonfunctional requirements
3. Stakeholders – the source of system requirements: people with interest in successful system implementation.
a) Users (user system)
Horizontal user roles – information flow across departments
Vertical user roles – information needs of clerical staff, middle management and senior executive
b) Clients (pay for and own the system)
c) Technical staff (ensure system operation)
4. Techniques for information gathering: analysis phase done to understand business functions and develop system requirements
a) Original structure
b) Current structure
5. Fact finding methods
a) Review existing reports, forms and procedure descriptions
i. Source: external industry wide professional organizations and trade publications
ii. Existing business documents and procedure descriptions within organization
b) Conduct interviews and discussions with users: effective way to understand business functions and rules.
c) Observe and document business processes: varies from office walkthrough to performing actual tasks, and not necessary to observe all processes at the same level of detail
d) Build prototypes: preliminary working model of a larger, more complex system, and working model to provide “look and feel”
e) Distribute and collect questionnaires: limited and specific information from a large number of stakeholders.
i. Closed-ended questions direct person answering question.
ii. Open-ended questions encourage discussion and elaboration.
f) Conduct JAD sessions: expedite investigation of systems requirements
g) Research vendor solutions
h) Validating the requirements: make sure gathered information is correct.