21
Sep
Objectives of Feasibility Analysis
The main objectives of feasibility analysis are –
To identify the deficiencies in the current system.
To determine objectives of the proposed system.
To acquire a sense of scope of the system.
To identify the responsible users.
To determine whether it is feasible to develop the new system.
Steps in Feasibility Analysis
Feasibility analysis is carried out in following steps:
Form a Project Team and Appoint a Project Leader: First of all project management group of the organization forms separate teams for independent projects. Each ...
21
Sep
Who is Systems Analyst?
A systems analyst is a person who conducts a study, identifies activities and objectives and determines a procedure to achieve the objectives. Designing and implementing systems to suit organizational needs are the functions of the systems analyst He plays a major role in seeing business benefit from computer technology. The analyst is a person with unique skills. He uses these skills to coordinate the efforts of different type of persons in an organisation to achieve business goals.
What a Systems Analyst does?
A system analyst carries out the following ...
21
Sep
To understand system development, we need to recognize that a candidate system has a life cycle, much like a living system or a new product. Systems analysis and design are based to the system life cycle. The stages are described below. The analyst must progress from one stage to another methodically, answering key questions and achieving results in each stage.
Step 1: Recognition of Need – What is the Problem?
One must know what the problem is before it can be solved. The basis for a candidate system is recognition of a need for improving an information system or a procedure. For ...
21
Sep
Computer Based Information System:
Computer Based Information System (CBIS) is an information system in which the computer plays a major role. Such a system consists of the following elements:
Hardware: The term hardware refers to machinery. This category includes the computer itself, which is often referred to as the central processing unit (CPU), and all of its support equipments. Among the support equipments are input and output devices, storage devices and communications devices.
Software: The term software refers to computer programs and the manuals (if any) that support them. ...
21
Sep
Systems have been classified in different ways. Common classifications are:
Physical or abstract systems
Open or closed systems
Deterministic or probabilistic systems
Man-made information systems
Physical or Abstract Systems: Physical systems are tangible entities that may be static or dynamic in operation. Abstract systems are conceptual or non-physical entities which may be as straightforward as formulas of relationships among sets of variables or models - the abstract conceptualization of physical situations.
Open or Closed Systems: An open system continually interacts with ...
21
Sep
Elements of a System
The important elements of a system are;
Output and Inputs
Processor(s)
Control
Feedback
Environment
Boundaries and Interface
Outputs and Inputs
A major objective of a system is to produce an output that has value to its user. Whatever the nature of the output, it must be within the line with the explanations of the intended user. Inputs are the elements that enter the system for processing. Output is the outcome of processing. A system feeds on input to produce output in much the same way that a business brings in human financial, and material ...