Meaning of Inventory

Inventory is store of goods and stocks. Items in inventories are called stock-keeping items held at stock piont. In manufacturing organization, inventory refers raw materials, parts and components, supplies, work-in process and finished goods. In service organizations, it includes the tangible items to be sold and used for day-to-day operations.

Inventories play vital role on the success of the organization. Inventory means not only maintaining stock, it refers the investment of the organizations as well as of the country. It is a major part of investment and affects the economy of the country as well. Therefore, inventory control is very essential. There should be a good inventory policy and controls. The set of policies and controls refer the inventory systme of the organization.

Production and operations management focuses on conversion process of inputs into output of goods and services. It tries to maintain optimum inventory level at each stock point to ensure smooth flow of production, to meet demand of the customers at optimum cost.

Dummy Variables

If the constraints of given LP problem are greater than or equal to type, in that case the constraints are converted into equations by subtracting surplus variables. In such a case, an identity matrix does not form with the coefficients of surplus variables. In order to obtain an identity matrix, the auxiliary non-negative variables are added to given constraints. Such additional variables are called artificial variables (dummy variables). These are denoted by D1, D2 or A1, A2 etc. When the given constraints are greater than or equal to and equal to type, the dummy variables are added.

If the objective function is to maximize a certain quantity, the coefficient of each dummy variable in objective function is assumed to be a very high positive number which is denoted by M. 

Concept of maintenance management

Maintenance is primarily concerind with aday to day problem of machinery equipment in maintaining good working condition. It is very essential to ensure a continuous production flow by utilizing maximum capacity of plant.

The main objective of the maintenance policy is to minimize total cost of maintaining an acceptable leverl of equipment reliability. All these objective of the maintenance can be outlined as below:

- to ensure prodduct and service quality and satisfaction of customers
- to increase reliability and life of machines and equipment to ensure plan safety and minimize industrial accident.
- to minimize operating cost
- to ensure continuity in produuctio
- to maximize the utilization of capacity

Therefore, the equipment reliability  can be maintained and improved in two ways:
a. Improving engineering design.
b. Management of implant inventory level.

Statitical Quality Control

The quality refers to conformity with certain prescribed standards or specifications and these standards may be in terms of size, weight, strenght, colour, taste etc. The producer is primarily interested to see that the product is desirable that the end successful marketing of the product it is disable that the end product must successful marketing of the product it is disable that the end product must conform to the standards or expectations laid down by the customers.

Statistical Quality Control is the planned collection and effective use of data for studying cause of variations in quality either as between process, procedures. Materials, mechanics, etc. over period of time. This cause-effect analysis is then feedback into the system with a view to continuous action on the process of handling, manufacturing, packaging, transporting and delivery at end-use.

Writing Blogs

Before:
I think, blog writing is a simple process that we can put our views in the site of google. Everything that we can say, we experiences, our views and our emotions. It is the way to flow the views to the different kinds of peoples.

Now
Blog writing is the most difficult task. It is about the experiencing something new. To write something about ourselves is quite easy, but describing something is very very difficult. Writing our own experience in a simple way is also becomes difficult for me.

I want to increase my PR in blogs, but it is also the most difficult tasks. I tried it for  2 months, but it does not increase my rank. It is just N/A. Where and how can I increase my PR, I don't know.

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you are the one whom I love more than anything, more than anyone,
You are my life, my love, my world..
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I can't face the hardships of life without you,
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