Inventory Management System Minor Project Report - Life Cycle Model Of Inventory Mamanagement System
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The life cycle model used in this project is the incremental model.
Incremental life cycle model
Incremental model is an evolution of waterfall model. The product is designed, implemented, integrated and tested as a series of incremental builds. It is a popular model software evolution used many commercial software companies and system vendor.
Incremental software development model may be applicable to projects where:
• Software Requirements are well defined, but realization may be delayed.
• The basic software functionality are required early.In this project the life cycle model used is the incremental development model.
ADVANTAGES
• Generates working software quickly and early during the software life cycle.
• More flexible - less costly to change scope and requirements.
• Easier to test and debug during a smaller iteration.
• Easier to manage risk because risky pieces are identified and handled during its iteration.
DISADVANTAGES
• Each phase of an iteration is rigid and do not overlap each other.
• Problems may arise pertaining to system architecture because not all requirements are gathered up front for the entire software life cycle.
HARDWARE REQUIREMENTS
PROCESSOR INTEL centrino
RAM 4GB SD
HARD DISK 500 GB
MONITOR 14” LCD
MOUSE 1
PRINTER for print report or bill
SOFTWARE REQUIREMENT
OPERATING SYSTEM – WINDOWS 98/XP
FRONT END – VISUAL BASIC 6.0 (PROFFESIONAL EDITION)
BACK END – MS. ACCESS
ANALYSIS AND DESIGN PHASE
DATA FLOW DIAGRAM (DFD)
A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system, modeling its process aspects. A DFD shows what kinds of data will be input to and output from the system, where the data will come from and go to, and where the data will be stored. The Data Flow Diagram shows the flow of data or information. It can be partitioned into single processes or functions. Data Flow Diagrams can be grouped together or decomposed into multiple processes.
The DFD is an excellent communication tool for analysts to model processes and functional requirements. Used effectively, it is a useful and easy to understand modeling tool. It has broad application and usability across most software development projects. It is easily integrated with data modeling, workflow modeling tools, and textual specs. Together with these, it provides analysts and developers with solid models and specs. Alone, however, it has limited usability. It is simple and easy to understand by users and can be easily extended and refined with further specification into a physical version for the design and development teams.
Symbols of Data Flow Diagram
There only four symbols used to write Data Flow Diagram as follows:
External Entities –> Rectangular box
Data Flow –> Arrow headed lines
Process –> Bubble (Circle or round corner square)
Data Store –> Narrow opened rectangle
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