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Module Title: System Analysis and Design
Developer: Ms. Eliza M. Pascual
Specific Learning Objectoves
1 • Have a sound knowledge in the computer
world, not limited to its basic parts,
components, devices, and proper usage.
2 Be aware of the ever-changing challenges in data
security and privacy.
3 Appreciate the importance of Internet by knowing the
technology involved in the Internet.
1 Data vs. Information
2 Types of Computers
3 Parts of Computers
4 Storage Devices
5 How computers work?
6 Computer Ergonomics
7 Basic Netiquettes and Data Security
Analysis
the process of breaking a complex topic or
substance into smaller parts
Ancient Greek word analusis which means “a breaking-
up” or “an untying”, from ana meaning “up, throughout”
and lusis meaning “a loosening.”
System Analysis
System Design
a process of collecting and interpreting facts, identifying the
problems, and decomposition of a system into its components.
a process of planning a new business system or replacing an existing
system by defining its components or modules to satisfy the specific
requirements.
SYSTEM
end-user implementation of
a software package
PROCESS
looking in-depth at source code to
define the methodologies used in
building software;
TECHNOLOGY
taking feasibility studies and other types of
research to support the use and production of a
software product, among other things.
Save money
Enable better
management
Improves
productivity
Effective skill
use
Complexity and
scope of the
system
Financial issues
Technological
changes
Presence of a few
systems auditors.
1 Incorporating human-computer interaction considerations
2 Identifying problems, opportunities, and objectives
3 Determining human information requirements
4 Analyzing system needs
5 Designing a recommended system
6 Developing and documenting software
7 Testing and maintaining the system
8 Implementing and evaluating the system
1 ask a question
2 do background research
3 construct hypothesis
4 test your hypothesis by doing an experiment
5 analyze your data and draw a conclusion
6 communicate your result
THANKYOU

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ISAD 313-2_ SYSTEM ANALYSIS.pptx

  • 1. Module Title: System Analysis and Design Developer: Ms. Eliza M. Pascual
  • 2. Specific Learning Objectoves 1 • Have a sound knowledge in the computer world, not limited to its basic parts, components, devices, and proper usage. 2 Be aware of the ever-changing challenges in data security and privacy. 3 Appreciate the importance of Internet by knowing the technology involved in the Internet.
  • 3. 1 Data vs. Information 2 Types of Computers 3 Parts of Computers 4 Storage Devices 5 How computers work? 6 Computer Ergonomics 7 Basic Netiquettes and Data Security
  • 4.
  • 5. Analysis the process of breaking a complex topic or substance into smaller parts Ancient Greek word analusis which means “a breaking- up” or “an untying”, from ana meaning “up, throughout” and lusis meaning “a loosening.”
  • 6. System Analysis System Design a process of collecting and interpreting facts, identifying the problems, and decomposition of a system into its components. a process of planning a new business system or replacing an existing system by defining its components or modules to satisfy the specific requirements.
  • 7. SYSTEM end-user implementation of a software package PROCESS looking in-depth at source code to define the methodologies used in building software; TECHNOLOGY taking feasibility studies and other types of research to support the use and production of a software product, among other things.
  • 9. Complexity and scope of the system Financial issues Technological changes Presence of a few systems auditors.
  • 10. 1 Incorporating human-computer interaction considerations 2 Identifying problems, opportunities, and objectives 3 Determining human information requirements 4 Analyzing system needs 5 Designing a recommended system 6 Developing and documenting software 7 Testing and maintaining the system 8 Implementing and evaluating the system
  • 11. 1 ask a question 2 do background research 3 construct hypothesis 4 test your hypothesis by doing an experiment 5 analyze your data and draw a conclusion 6 communicate your result

Editor's Notes

  1. SPECIFIC LEARNING OBJECTIVES:  At the end of this module you MUST be able to:
  2. SPECIFIC LEARNING OBJECTIVES:  At the end of this module you MUST be able to:
  3. SPECIFIC LEARNING OBJECTIVES:  At the end of this module you MUST be able to:
  4. Every account is classified in one of five different classifications: assets, liabilities, equity, revenue, and expense. Each account is increased or decreased with a debit or credit, depending on the classification. Assets: cash and cash equivalents, accounts receivable, inventory, prepaid expense, investments, property, plant, and equipment, intangible assets. (An intangible asset is a resource that has no physical presence and has long-term value for a business. Copyright and a company’s reputation are considered intangible assets.) Contra assets: allowance for doubtful accounts, accumulated depreciation, accumulated amortization. In bookkeeping, a contra asset account is an asset account in which the natural balance of the account will either be a zero or a credit (negative) balance. The account offsets the balance in the respective asset account that it is paired with on the balance sheet. Liabilities: accounts payable, notes payable, accrued expenses, deferred revenue, long-term bonds payable Contra liability: bond discount
  5. In this chapter, you will delve into a deeper understanding of systems analysis to identify the role of a systems analyst. Analysis applies not just in the world of information technology but in the different disciplines as well, from science, business, engineering, statistics to music philosophy, and even in psychotherapy. Whenever analysis is applied there will always be room for improvement even on a very small scale. Analysis is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle, though analysis as a formal concept is a relatively recent development. The word comes from the Ancient Greek word analusis which means “a breaking-up” or “an untying”, from ana meaning “up, throughout” and lusis meaning “a loosening.” As a formal concept, the method has been variously been ascribed to Alhazen, Rene Descartes, and Galileo Galilei. It also has been ascribed to Isaac Newton, in the form of a practical method of physical discovery (which he did not name).
  6. The Study of Systems Analysis Systems development is a systematic process that includes phases such as planning, analysis, design, deployment, and maintenance. Here, in this module, we will primarily focus on  Systems analysis  Systems design Systems Analysis It is a process of collecting and interpreting facts, identifying the problems, and decomposition of a system into its components. System analysis is conducted for the purpose of studying a system or its parts in order to identify its objectives. It is a problem-solving technique that improves the system and ensures that all the components of the system work efficiently to accomplish its purpose. Analysis specifies what the system should do Systems Design It is a process of planning a new business system or replacing an existing system by defining its components or modules to satisfy the specific requirements. Before planning, you need to understand the old system thoroughly and determine how computers can best be used in order to operate efficiently. System Design focuses on how to accomplish the objective of the system.
  7. System Analysis and Design (SAD) mainly focuses on:  Systems  Processes  Technology In IT, systems analysis can include looking at the end-user implementation of a software package or product; looking in-depth at source code to define the methodologies used in building software; or taking feasibility studies and other types of research to support the use and production of a software product, among other things. Systems analysis professionals are often called upon to look critically at systems, and redesign or recommend changes as necessary. Inside and outside of the business world, systems analysts help to evaluate whether a system is viable or efficient within the context of its overall architecture and help to uncover the options available to the employing business or other parties. Systems analysts are different than systems administrators, who maintain systems day to day, and their roles generally involve a top-level view of a system to determine its overall effectiveness according to its design.
  8. Advantages of Systems Analysis System analysis is done by an analyst who analyzes the software or internal systems and the company's stated requirements for functionality. The analyst may then research the available applications in the market or recommend hybrid solutions. Here are several benefits of systems analysis: 1. Save money 2. Enable better management 3. Improves productivity 4. Effective skill use
  9. Limitations of Systems Analysis Although system analysis offers an extensive range of benefits it might also have some disadvantages. One of the main disadvantages which are mostly overlooked is the risk of too much analyzing which may lead to some more problems such as:  Complexity and scope of the system;  Technological changes  Financial issues and;  Presence of a few systems auditors.
  10. Responsibilities of the Systems Analyst System analysts are IT professionals who act as a mediator between clients and the technical team. They are responsible for integrating business requirements into technology and ensure the smooth functioning of the business Bachelor of Science in Accounting Information System ISAD 313 Information System Analysis and Design Bulacan Polytechnic College Date Developed: January 2021 Date Revised: Page 5 of 6 Document No. 20-ISAD 313 Developed by: Eliza M. Pascual Revision # 01 operations. They use both business and technical knowledge for analyzing business processes, computer systems, and infrastructure to develop effective strategies that can help in accomplishing the daily needs of the organization. To perform their job, system analysts have to be proficient in a programming language, the configuration of systems, and multiple operating systems. Here are some responsibilities of a system analyst:  Incorporating human-computer interaction considerations  Identifying problems, opportunities, and objectives  Determining human information requirements  Analyzing system needs  Designing a recommended system  Developing and documenting software  Testing and maintaining the system  Implementing and evaluating the system
  11. The Scientific Method of Problem Solving The scientific method is a process for experimentation that is used to explore observations and answer questions. Does this mean all scientists follow exactly this process? NO. Some areas of science can be more easily tested than others. In IT, a problem is a situation, quantitative or otherwise, that confronts an individual or group of individuals, that requires resolution, and for which the individual sees no apparent path to the solution. This problem could be:  an obstacle which makes it difficult to achieve a desired goal, objective, or purpose;  a discrepancy between existing and desired state of affairs;  a difficulty that has to be resolved or dealt with;  a cause of several non-simultaneous errors or accidents;  an unplanned or unexpected deviation from a predefined standard or expectation;  a situation that leads to a need or want and that can give rise to an opportunity.