DESIGN AND DEVELOPMENT OF AN INFO SYSTEM FOR ASSESSMENT OF ACCIDENT CONTROL IN BUILDING CONSTRUCTION SITE

Undergraduate

SYSTEM DESIGN

Software design sits at the technical kernel of the software engineering process and is applied regardless of the development paradigm and area of application. Design is the first step in the development phase for any engineered product or system. The designer’s goal is to produce a model or representation of an entity that will later be built. Beginning, once system requirement has been specified and analyzed, system design is the first of the three technical activities design, code and test that is required to build and verify software. 

The importance can be stated with a single word “Quality”. Design is the place where quality is fostered in software development. Design provides us with representations of software that can assess for quality. Design is the only way that we can accurately translate a customer’s view into a finished software product or system. Software design serves as a foundation for all the software engineering steps that follow. Without a strong design we risk building an unstable system one that will be difficult to test, one whose quality cannot be assessed until the last stage.

During design, progressive refinement of data structure, program structure, and procedural details are developed reviewed and documented. System design can be viewed from either technical or project management perspective. From the technical point of view, design is comprised of four activities architectural design, data structure design, interface design and procedural design.


             ABSTRACT SPECIFICATION

It entails the input and output specification. The specification work hand in hand to enhance the system functionality. The specifications are as follows.

 

3.2.1      INPUT SPECIFICATION:

This is an interface between the user and the system that allows the user to enter data. Data input is generally done through the standard terminal keyboard or with the mouse in case of combo boxes (or command buttons). At this stage, different screen (forms) is designed to guide data entry procedure. The input variables needed for this work are usernames (of admin,) and passwords, while, the forms includes only login forms.

The data being entered on keys into the computer through the keyboard as input, which specification used in the program are.

          The following are the input used for this program.

S/N

FIELD NAME

DESCRIPTION

1.      

ID

0000000000000000000000

2.      

USERNAME

xxxxxxxxxxxxxxxxxxxxxxx

3.      

PASSWORD

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