This document discusses the skills needed to be a successful systems analyst, including analytical skills, technical skills, management skills, and interpersonal skills. It focuses on analytical skills, describing key concepts like systems thinking, organizational knowledge, problem identification, and problem analysis and solving. Systems thinking involves understanding systems as interconnected components with inputs, outputs, and boundaries. Analytical skills also include understanding how organizations work and being able to identify problems by comparing the current situation to the desired outcome. The document provides examples to illustrate these concepts.
Simulation in Social Sciences - Lecture 6 in Introduction to Computational S...Lauri Eloranta
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Lecturer: Lauri Eloranta
Questions & Comments: https://twitter.com/laurieloranta
In software engineering and software architecture design, design decisions address architecturally significant requirements; they are perceived as hard to make and/or costly to change. It is called also architecture strategies and tactics.
this pdf file includes software development life cycle, requirement analysis and specification, project management, design, coding, testing, maintenance and quality reuse and case tools.
Requirements engineering is the discipline that involves establishing and documenting requirements. The various activities associated with requirements engineering are elicitation, specification, analysis, verification and validation, and management.
Simulation in Social Sciences - Lecture 6 in Introduction to Computational S...Lauri Eloranta
Sixth lecture of the course CSS01: Introduction to Computational Social Science at the University of Helsinki, Spring 2015.(http://blogs.helsinki.fi/computationalsocialscience/).
Lecturer: Lauri Eloranta
Questions & Comments: https://twitter.com/laurieloranta
In software engineering and software architecture design, design decisions address architecturally significant requirements; they are perceived as hard to make and/or costly to change. It is called also architecture strategies and tactics.
this pdf file includes software development life cycle, requirement analysis and specification, project management, design, coding, testing, maintenance and quality reuse and case tools.
Requirements engineering is the discipline that involves establishing and documenting requirements. The various activities associated with requirements engineering are elicitation, specification, analysis, verification and validation, and management.
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System Analysis and Design Project documentationMAHERMOHAMED27
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The systematic use of proven principles, techniques ,languages and tools for the cost-effective analysis ,documentation and on-going evolution of user needs and the external behavior of a system to satisfy those user needs.
Requirement Elicitation
Facilitated Application Specification Technique(FAST)
Quality Function Deployment
USE-CASES
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2. Contents
Discuss the analytical skills
Describe the technical skills
Discuss the management skills
Identify the interpersonal skills
3. Relationship between system
analyst’s skills and SDLC phases
Interpersonal skills
• Project identification and selections phase
• Project initiation and planning phase
Analytical skills
• Analysis phase
Management skills
• Design phase
Technical skills
• Implementation phase
• Maintenance phase
4. Analytical skills
for System analysts
We will focus on four sets of analytical
skills. They are:
– System thinking
– Organizational knowledge
– Problem identification
– Problem analyzing and solving
5. Analytical skills for System analysts:
1. System thinking
Systems and its characteristics
– System is an interrelated set of components, with identifiable
boundary, working together for some purpose
A system has nine characteristics:
– Components----------------------Subsystems
– Interrelated components
– A boundary
– A purpose
– An environment
– Interfaces
– Input
– Output
– Constraints
7. System characteristics
A component
• an irreducible part or aggregation of parts
that make up a system, also called a
subsystem
Interrelated components
• Dependence of one subsystem on one or
more subsystems
Boundary
• The line that marks the inside and outside
of a system and that sets off the system
form its environment
8. System characteristics
Purpose
• The overall goal or function of a system
Environment
• Everything external to a system that
interacts with the system
Interface
• Point of contact where a system meets its
environment or where subsystems meet
each other.
9. System characteristics
Constraint
• A limit to what a system can accomplish
Input
• Whatever a system takes from its
environment in order to fulfill its purpose
Output
• Whatever a system returns from its
environment in order to fulfill its purpose
10. A fast food restaurant as a system: Example
Environments: customers, food distribution, banks, etc.
Dining
Room
Storage Office
Kitchens
Contour
Inputs:
Food
,labor,
cash,
etc.
Boundary
Outputs:
Prepared
food
Trash
Etc.
interrelationship
11. Open and Closed systems
Open system
• A system that interacts freely with its
environment, taking input and returning
output
Closed system
• A system that is cut off from its
environment and does not interact with it
12. Logical and Physical system
description
Logical system description
• Description of a system that focuses on the
system function and purpose without regard to
how the system will physically implemented
Physical system description
• Description of a system that focuses on the how
the system will be materially constructed
13. Benefiting from systems thinking
• The first step in systems thinking is to be able to
identify something as a system.
• Identify where the boundary lies and all of the
relevant inputs
• Visualizing a set of things and their relationship as
system allows you to translate a specify physical
situation into more general.
• By decomposition
– The system into subsystems, we can analyze each
subsystem separately and discover if one or more
subsystem is at capacity.
– Its enabled us to determine its problem with
demand
14. Customer Kitchen
4.0
Produce
Management
report
Update
Goods sold
file
Kitchen order
Update
Inventory
file
Process
Customer
Food order
Goods sold
file
Restaurant
manger
1.0
2.0 3.0
Formatted
Goods
sold
data
Daily goods sold amount
Inventory file
Management report
Goods
Sold
Inventory data
Daily inventory
Depletion amounts
Customer order
Receipt
*Data flow diagram for fast food restaurant IS
15. Organizational skills
Analyst should understand
– how organizations work
• Polices
• Terminologies, abbreviations, and acronyms
• Short/long term strategy and plans
• Role of technology
• The functions and procedures of the particular
organization you are working for
– How the department operates,
• its purpose,
• its relationship with other department
• its relationship with customers and suppliers
– Who the experts are in different subject
areas
16. Problem Identification skills
(Pound 1969) Problem is the
difference between an existing
(current) situation and desired
(output) situation.
– The process of identifying problems is the
process of defining differences, so problem
solving is the process of finding a way to
reduce differences.
– Analyst should able to compare the current in
an organization to the desired situation.
18. Important system concepts
There are several other system
concepts with which systems
analysts need to become familiar:
• Decomposition
• Modularity
• Coupling
• Cohesion
19. Decomposition
Definition: The process of breaking
down a system into smaller component
– The purpose of decomposition is to allow
the system analysts to:
• Break a system into small, manageable
subsystem
• Focus on one are at a time
– Concentrate one component pertinent to
one group of users
– Build different components at independent
times
20. Modularity and Coupling
Modularity
– Dividing a system up into chunks or modules of a
relatively uniform size. To Simplify the redesign and
rebuild process
Coupling
– The extend to which subsystems depend on each
other.
– Subsystem should be independent as possible. If one
subsystem fails and other subsystem are highly
dependent on it, then the other will either fail
themselves or have problems functioning
21. Cohesion
A cohesion is the extent to which a
subsystem performs a single
function.
22. Technical Skills (1)
Many aspects of your job as a system
analyst are technically oriented.
The following activities will help you stay
up-to-date:
– Read trade publications
– Join professional societies
– Attend classes or teach at a local college
– Attend many courses or training sessions
offered by your organizations
– Attend professional conferences, seminars,
or trade shows
– Participate in electronic bulletin, new groups
23. Technical Skills (2)
You should be familiar as possible with
information technology:
– Microcomputer, micro station, workstation,
mainframe computers
– Programming languages
– Operating systems
– Database and file management systems
– Data communication standards
– Software for local and wide networks
– Web developing tools
– Decision support system generators
– Data analysis tools
– Data design tools
24. Management Skills
System analysts are almost always
members of project teams and are
frequently asked to lead team.
Management skills are very useful for
anyone in a leadership role.
There are four class of management
skills:
– 1- Resources
– 2- Project
– 3- Risk
– 4- Change management
25. 1- Resource management
Includes:
– Predicting resources usage (budgeting)
– Tracking and accounting for resources
consumption
– Learning how to use resources effectively
– Securing resources from abusive use
– Evaluating the quality of resources used
26. Assignment
Describe your university or college
as a system.
– What is the input?
– What is output?
– What is the boundary?
– What is the components and their
relationship?
– The constraint
– The environment
Draw a diagram of this system
27. Assignment
Describe yourself in terms of your
abilities at each of the following
interpersonal kills: working alone verse
working with a team, interviewing,
listening, writing, presenting, facilitating
a group, and margining expectations.
Where are your strengths and
weakness? Why? What can you do to
capitalize on your strengths and
strengths areas where you are weak?
28. Interpersonal skills
Communication skills
Interviewing, Listening, and questionnaires
Written and oral presentations
– Meeting agenda
– Meeting minutes
– Interview summaries
– Requests for proposal from contractors and vendors
Working alone and with a team
Facilitating groups
Managing exceptions