SYSTEM ANALYSIS

System Analysis & Design

Table of Contents

Task 1: The Stages of the Systems Development Life Cycle3

Task 2: Models of the Systems Development Life Cycle6

Task 3: Identify characteristics of a system12

System Analysis & Design

Task 1: The Stages of the Systems Development Life Cycle

Stage 1

The first stage is named as Preliminary/Feasibility Study. It is one of the most tedious task is to recognize the real problem of the pre-installed system. The analysis has to spend hours and days for understanding the fault in the system. This fault could have however overcome if the Preliminary Investigation before installing the system was properly done. This is the first stage of the development of the system. In this stage the analyst makes a survey by gathering all the available information needed for the system elements and allocation of the requirements to the software (Baskerville, 2010: 481-504).

Output

The stage involves the customer requirement that includes budget and timeframe and the output of this phase is Cost Benefit Analysis Report.

Stage 2

The second stage is called Systems Analysis. The analyst understands the nature of the information and the functions of the software which is required for the system. The analyst makes a brief survey of the requirements and tries to analyze the performance of the system which is to be developed.

Output

It involves customer requirements given in different formats (BRD, FRD) and the related output is given in Software Requirements Specification (SRS).

Stage 3

The third stage is named as System Design. In this stage the analyst actually makes number of designs of the system on paper or on the computer and sees to it that the rough image made of the system comprises of all the requirements or not. Once this is done, the analyst selects and finalizes a best suited design for the development of the system.

Output

End User Information is involved in this stage and the related output can be presented in ERD, DFD and Design Documents.

Stage 4

The fourth stage is Software Development. The analyst translates the code or the programs in such a way that they become in machine readable form. The coding step is very time consuming and involves number of rooms for errors.

Output

This stage involves DB structures, Coding and Programming whereas the output is shown in developed modules.

Stage 5

The fifth stage is called System Testing. Once the analyst is through with the coding stage he tests the systems and sees to it that it is working as per the expectations or not(Cockburn, 2001: 144-149). He corrects the flaws in the system if any.

Output

The analyst is involved in creating Module Integration, Test Plan, & Test Cases. The output reports he gets in this stage may be about defects, issues, & Interoperability Analysis Reports.

Stage 6

The sixth stage is a System Implementation stage. This is one of the most vital phases as in this phase the analyst actually gives the system to the customer and expects for a positive feedback.

Output

This stage involves input like Completed Required System and ...