[SYSTEM ANALYSIS AND DESIGN] [Pick the date]

1 Bachelor of Computer Applications at Dev Sanskriti Vishwavidyalya

System Analysis and Design Concept

System is defined as a set of elements arranged in an orderly manner to

accomplish an objective. System is not a randomly arranged set. It is arranged

with some logic governed by rules, regulations, principles and policies. Such

an arrangement is also influenced by the objective the system desires to

achieve. Systems are created to solve problems. One can think of the systems

approach as an organized way of dealing with a problem. In this dynamic

world, the subject system analysis and design (SAD) mainly deals with the

software development activities:

Need: When you are asked to computerized a system, it is necessary to

analyze the system from different angles. The analysis of the system is the

basic necessity for an efficient system design. The need for analysis stems

from the following point of view:-

System objective: it is necessary to define the system objectives. Many a

times, it is observed that the systems are historically in operation and have

lost their main purpose of achievement of the objectives. The users of the

system and the personnel involved are not in a position to define the

objectives. Since you are going to develop a computer based system, it is

necessary to redefine or reset the objectives as a reference point in context of

current business requirement.

System boundaries: it is necessary to establish the system boundaries which

would define the scope and the coverage of the system. This helps to short

out and understand the functional boundaries in the system, and the people

involved in the system. It also helps to identify the inputs and the outputs of

the various subsystems, covering the entire system.

System importance: it is necessary to understand the importance of the

system in the organization. This would help the designer to decide the design

feature of the system. It would be possible then to position the system in

relation to the other systems for deciding the design, strategy and

development. Nature of the system: the analysis of the system will help the

[SYSTEM ANALYSIS AND DESIGN] [Pick the date]

2 Bachelor of Computer Applications at Dev Sanskriti Vishwavidyalya

system designer to conclude whether the system is closed type or an open,

and a deterministic or a probabilistic. Such an understanding of the system is

necessary prior to design the process to ensure the necessary design

architecture.

Role of the system as an interface: the system, many a times, acts as an

interface to the other systems. It is necessary to understand the existing role

of the system, as an interface, to safeguard the interests of the other systems.

Any modification or changes made should not affect the functioning or the

objectives of the other system.

Participation of the user: the strategic purpose of the analysis of the people

to a new development. System analysis process provides a sense of

participation to the people. This helps in breaking the resistance to the new

development and it also then ensures the commitment to the new

development and it also then ensures the commitment to the new system.

Understanding of resource needs: the analysis of the system helps in defining

the resource requirement in terms of hardware and software. Hence, if any

additional resources are required, this would mean an investment from the

point of view of return on such investment. If the return on such investment

from the point of view of return on such an investment. If the return on the

investment is not attractive, the management may drop the project.

Assessment of feasibility (practicability): the analysis of the system helps to

establish the feasibility from different angles. The system should satisfy the

technical economic and operational feasibility. Many a time, the systems are

feasible from the technical and economic point of view, but they may be

infeasible from the operational point of view. The assessment of feasibility

will have the investment and the system designer’s time. It would also save

the embracement to the system designer as he is viewed as the key figure in

such project.

References::http://deepread.blogspot.in/2011/06/concept-of-system-

analysis-design-sad.html