Wk 6 - Business analysis & modelling

Question 1

Define System

Answer 1

A set of components that work together for the overall objective of the whole.

Question 2

Define systems thinking.

Answer 2

Approach to problem solving.

Understanding how systems interact with each other so we can manage them and the end result.

Question 3

What is the ‘systems development life cycle (SDLC)?’.

Answer 3

The oldest / classic system development methodology.

A conceptual model in project management describing stages of info system development.

Question 4

What are the 7 phases of the SDLC?

PADD TIM

Answer 4

1. Planning
2. Analysis
3. Design
4. Development
5. Testing
6. Implementation
7. Maintenance.

Question 5

What are the 4 stages of Soft Systems Methodology (SSM).

FMDD

Answer 5

4 stage process.

1. Finding out – investigate situation
2. Modelling – identifying the key transformational processes
3. Dialogue – common understanding with stakeholders.
4. Defining & taking action – Carry out.

Question 6

How are rich pictures used?

Answer 6

Illustrate current systems with other analysts, clients, users and owners.

Unifies stakeholders in their understanding of a system to uncover ‘missed’ processes and generate feedback.

Question 7

What is a rich picture?

Answer 7

depicts the internal processes within a system, how it interacts with external entities using simple diagrams, text, arrows etc.

Question 8

What are the primary reasons why projects fail?

PURSC

Answer 8

Poor planning
Unrealistic expectations
Rushed to market
Scope becomes unmanageable.
Complexity

Question 9

A CATWOE is nemonic from the SSM modelling stage. What does it stand for?

Answer 9

Customers
Actors
Transformation
World View (perspective from which trans is meaningful)

Owners
External factors (affecting transformation).