Vegetable quantity arrival to market varies every day with which its prices also changes rapidly. This paper analyses the factors that affect the rapid change in prices of vegetables such as demand forecasting, demand supply management, erroneous statistics of vegetables, storage facilities, and supply chain system, etc. Government of India has no control over the production of horticultural and agricultural crops, sometimes under produced and sometimes over produced, which makes demand supply management hard-won. This paper mainly focuses on advantages of demand forecasting and demand supply management of vegetable crops and their effects on farmers and consumers. The Government should find a novel method or a system which gets crop data from farmer, does demand forecasting on day to day basis, control crop acreages, generate accurate statistics and do demand supply management of crops.

Instability is the nature of any application. An Application may strive for and helps a business or company for some time (may be 10 or 15 years), during that time it has been corrected, adapted and enhanced many times. But every time a change is made into the application, unexpected and serious side effects occur. Yet the application must continue to evolve. Unmaintainable software is not a new problem. In the following sections, we are going to analyze the Software Re-engineering and Reverse-engineering processes and how they help any application to maintain the Quality standards.