2. Important info Assessment Semester 1: Coursework 1 (Component 1, 2)
Important notes
Semester 1
Lecturer, tutor: Olga Yugay, MEng in Computer Science, Dongguk University
Office hours: Tuesday 14: :00, Room 216 (new building)
Semester 2
Olimjon Bakirov, MEng in Computer Science, Hofstra University

3. Essential reading
Systems Analysis - A beginner's guide : Kevin Bowman ISBN : X Introducing Systems Development by S.Skidmore and M.Eva: ISBN : UML 2 for Dummies. M.Chonoles, J. Schardt

4. What is the module about?
Information Systems
Tools
Models
Techniques
Methodologies and frameworks
Programming perspective

5. What is a system? What is an Information System? Examples
A system has nine characteristics:
Components/Subsystems
Interrelated components
A boundary
A purpose
An environment
Interfaces
Input
Output
Constraints

6. A fast food restaurant as a system: Example
What is a system?
A fast food restaurant as a system: Example
Environments: customers, food distribution, banks, etc.
Storage
Office
Outputs:
Prepared
food
Trash
Etc.
Inputs:
Food
,labor,
cash,
etc.
Kitchens
Dining
Room
Contour
Boundary
interrelationship

7. Kitchen Customer 1.0 2.0 3.0 4.0 Goods sold file Customer order
Kitchen order
1.0
Process
Customer
Food order
Receipt
Inventory data
Update
Goods sold
file
2.0
3.0
Update
Inventory
file
Formatted
Goods
sold
data
Goods
Sold
Goods sold
file
Inventory file
4.0
Produce
Management
report
Daily inventory
Depletion amounts
Daily goods sold amount
Management report
Restaurant
manger
*Data flow diagram for fast food restaurant IS

8. Some reasons for information systems failures
User requirements not understood
Rejected by client/user
High cost of maintenance/changes
Over time
Over budget
No business benefit

9. Techniques, tools, methods, strategies
Techniques - do a particular job within the system s development process. Tools – device designed to assist in utilizing a technique. Methods – embody a number of techniques, each chosen for its appropriateness to a particular task within the overall aim of the method. Strategies – At the highest level. A computer systems development strategy will be agreed within a particular organization and may involve the use of certain methods for certain parts of the development process or for certain types of the system.

10. Systems analysis and design
System – technology in its social context – the organization and the work it supports Analysis – the activity of understanding the requirements for an information system Design – turning those requirements into an actual system or prototype.

11. The role of a Systems Analyst
Mediator, bridge or go-between
Social investigation
Understand and interpret business needs
System design
Communicating with clients, users, technical people
Sometimes Analyst Developer

12. Systems Analysts
A systems analyst studies the problems and needs of an organization to determine how people, data, processes, communications, and information technology can best accomplish improvements for the business. When information technology is used, the analyst is responsible for:
Efficient capture of data from business source
Flow of data to the computer
Processing and storage of data by computer
Flow of useful and timely information back to the business and its people

13. Variations on the Systems Analysts Title
A business analyst is a systems analyst that specializes in business problem analysis and technology-independent requirements analysis.
A programmer/analyst (or analyst/programmer) includes the responsibilities of both the computer programmer and the systems analyst.
Other synonyms for systems analyst include:
Systems consultant
Systems architect
Systems engineer
Information engineer
Systems integrator

14. Skills Required by Systems Analysts
Working knowledge of information technology
Computer programming experience and expertise
General business knowledge
Problem-solving skills
Interpersonal communication skills
Interpersonal relations skills
Flexibility and adaptability
Character and ethics
Systems analysis and design skills

15. Where Systems Analysts Work
Traditional businesses
Traditional information services organizations (permanent project teams)
Contemporary information services organizations (dynamic project teams)
Outsourcing businesses
Contracted to traditional businesses
Consulting businesses
Application software businesses
Building software products for traditional businesses

16. System analysis in practice ;)

17. How the customer explained it

18. How the Project Leader understood it

19. How the Analyst designed it

20. How the Programmer wrote it

21. How the Business Consultant described it

22. How the Project was documented

23. What operations installed

24. How the customer was billed

25. How it was supported

26. What the customer really needed