Solving of business problem with Information System

Topic: - Solving of business problem with Information System.

Q1. What are the different Procedures to solve business problem?

There are two procedures to solve business problem with information system:-

• By using system approach to problem solving.
• By developing information system solution.

Q2. Define system approach to problem solving?

There are five main phases in System Approach:-

a)      Define the problem:-

·         Define a problem or opportunity using system thinking.

·         Problem is basic condition i.e. causing under unexpected results.

·         An opportunity presents the potential for desirable results.

·         System thinking helps to see the components and interrelationship of system in any situation.

b)      Developing alternative solution: - In this we find the alternative solution of the giving problem. Source of alternative solutions are:-

·         Experience.

·         Advice of others.

·         Recommendation of consultants.

·         Suggestion of expert system.

·         Help from software package.

c)      Select the solution: - Evaluation has been done to meet the best solution for business and personal requirement.

d)     Design and Implementation:-

·         After selecting a solution is must be designed and implemented.

·         Design specifies the detailed characteristics and capabilities of the people, hardware, software and all resources.

·         In implementing stage we specify the resources, activities and time needed for proper implementation.

e)      Post implementation review:-

·         Results of implementing a solution should be monitored and evaluated.

·         The objective is to check that the implemented solution meet the objectives of business or not.

Q3. Define “Developing information system solution”?

There are seven stages in it:-

a)      SDLC(System development life cycle):-

·         When the system approach is used to develop of Information system solution to business problem, it is called Information system development.

·         It involves a multi step process called SDLC: - 1) Investigation.

                                                                                  2) Analysis.

                                                                                  3) Design.

                                                                                  4) Implementation.

                                                                                  5) Maintains.

b)      Starting System development process (Investigation):-

·         Determine whether a business problem exists.

·         What is the cause of Problem.

·         New or improved information system can help to solve it.

·         For this, a feasibility study is conducted.

·         Develop a project management plan and obtain management approval.

c)      System analysis:-

·         It is an in-depth study of end user information needs.

·         It is the basic for the design of new information system.

·         It involves a detailed study of :-      1) Organization.

         2) Processing System.

         3) Functional requirements.

      d)  System design:-

·         It specifies how system will accomplish its objective.

·         It contain in it: -                                1) User interface design.

         2) Data design.

         3) Process design.

         4) System specification.

      e) Prototyping: - It is a rapid development and testing of working model in an   

           Interactive process used by both system analyst and end user.

f)       Implementing a new information system:-

·         After completion of designing.

·         It involves: -            1) Software development.

                                      2) Testing of program and procedure.

                                      3) Development of documentation.

                                      4) Activities related to installation.

                                      5) Training of end user.

      g)  Maintenance: - It involves monitoring, evaluation, modifying a system to meet

requirements of business.

g)      CASE (Computer-aided system Engineering):-

·         It involves using software package called CASE tool to perform many activities of system development.

·         CASE packages provide many tools for front end of SDLC i.e. planning, analysis, design and for backend of SDLC i.e. implementation and maintenance.

·         Integrated CASE tools (I-CASE) are available that can assist all of stages of SDLC.

·         CASE tools support both forward engineering and back word engineering.

Keywords: - Information system, System development life cycle, prototyping, System,

                     System design, Computer aided system engineering.