Upload
mary-elaine-hill
View
214
Download
0
Embed Size (px)
Citation preview
1ISA&D29-Oct-13
Concepts of System Analysis
2ISA&D29-Oct-13
• Systems Analyst: problem solver• IT and Strategic Planning
Lecture details
3ISA&D29-Oct-13
Information Systems are crucial to modern business organizations
The key to successful system development is systems analysis and design
• Systems Analysis (SA): is the process of understanding and specifying in detail what the information system should do.
The Analyst as a Business Problem Solver
4ISA&D29-Oct-13
Information systems and component parts
5ISA&D29-Oct-13
Systems Design (SD): is the process of specifying in detail how the many components of the information system should be physically implemented.
• Systems Analyst (SA): is a business professional who uses analysis and design techniques to solve business problems using information technology and who develops IS.
Systems Design and Systems Analyst
6ISA&D29-Oct-13
• Systems analyst is a problem solver rather than a technical programmer • A great variety of special skills is required:
Technical Knowledge and Skills
Business Knowledge and Skills
People Knowledge and Skills
Integrity and Ethics
System analyst as a problem solver
7ISA&D29-Oct-13
8ISA&D29-Oct-13
System Analyst Approach to Problem Solving
2- Verify benefits of solving problem outweigh the costs
1- Research and understand the problem
3- Define the requirements for solving the problem
4- Develop a set of possible solutions (alternatives)
6- Define the details of the chosen solution
8- Monitor to ensure desired results
5- Decide which solution is best and recommend
7- Implement the solution
9ISA&D29-Oct-13
An analyst should have fundamental technology knowledge of: Computers / peripheral devices (hardware) Files and database systems Input and output components and alternatives Computer networks and protocols Programming languages, operating systems, and utilities Communication and collaboration technology
Dropbox, GoogleDrive,
Technical knowledge and skills
10ISA&D29-Oct-13
Software productivity packages Integrated development environments (IDEs) for
programming languages Visual modelling tools and code generation tools Analyst understands SDLC techniques
Project planning, cost/benefit, interviewing Systems requirements modelling including Design, database design,
and network configuration
Analyst Uses Tools
11ISA&D29-Oct-13
Analyst must understand
• Business functions performed by organization
• Strategies, plans, traditions, and values of the organization
• Organizational structure
• Organization management techniques
• Functional work processes
Business knowledge and skills
12ISA&D29-Oct-13
• Systems analyst must be an effective communicator
• Systems analyst must be able to perform various roles such as negotiator, teacher, mentor, collaborator, and manager
People knowledge and skills
13ISA&D29-Oct-13
Analyst has access to confidential information, such as salary, an organization’s planned projects, security systems, and so on.
• Must keep information private
• Any impropriety can ruin an analyst’s career
• An analyst plans the security in systems to protect confidential information
Analyst Integrity and Ethics
14ISA&D29-Oct-13
Types of Technology Encountered
Any change is opposite by traditional users
Desktop systems
Networked desktop systems that share data
Client-server systems
Large-scale centralized mainframe systems
Systems using Internet, intranet, and extranet technology
Environment surrounding analyst
15ISA&D29-Oct-13
• Programmer Analyst
• Business Systems Analyst
• End-user Analyst
• Business Consultant
• Systems Consultant
• System Support Analyst
• System Designer
• Software Engineer
• System Architect
Analysts Job Titles
16ISA&D29-Oct-13
Special projects affecting executives• Designing an executive information system • Business process management, redesign and improvements of existing processes• systems strategic planning is one of the key components of a strategic plan• Application architecture plan (business focus)• Technology architecture plan (infrastructure focus)
Analysts Role in Strategic Planning
17ISA&D29-Oct-13
18ISA&D29-Oct-13
End
Thank you
??????