Thursday, 28 September 2017

Data Collection Vs Data Validation

Whether your company is a start up or well established, accurate inventory control is a key issue. And, an integral part of an inventory control system is barcodes. The concept of using barcodes is familiar in our daily lives. However, without a good understanding of what a barcode is and how it works, its application in an inventory environment may be daunting.

A barcode in its simplest form is just another type of language. Most common barcode labels consist of the actual barcode (scanner readable) and words or numbers (human readable). A barcode does not intrinsically hold any additional information. However, the barcode plays a key function in inventory control because it allows a scanner to read the item number or SKU (Stock Keeping Unit) associated with a piece of inventory.

Regarding inventory control, it is common for a business to have what appears on the surface to be one main stumbling block. For example, your business seems to be accurate in recording the inventory received, but has trouble shipping the correct quantity or item to your customer. This is when the concept of data collection (spreadsheet) vs. data validation (database) comes into focus.

If we look at the example above from a data collection perspective, only the picking and shipping process needs to be corrected. We will assume, for this example, that the inventory we are receiving contains an existing manufacturer's barcode label. A person picking an order and collecting data with a barcode scanner will have the ability to record things such as the item that was picked, item quantity, a date and time, etc. This will allow someone at a later time to review the information in a spreadsheet and possibly pinpoint why errors occur during picking. Note that this method does not correct any behavior during the picking process nor does it take into account the total inventory process.

We will now look at the same example from a data validation perspective. For this process, we need to address the total inventory and initial set up, and not just the picking process. A relational database would be created to use the manufacturer's item numbers. Through the use of a database, you can store item information like minimum/maximum/reorder quantities and whether lot numbers or serial numbers are required; additionally, you are able to track vendor information, purchase orders, and sales orders and store them against the item number. This process would require receiving the inventory to a location in a quantity with a predefined inbound order. This normally correlates to a Purchase Order.

With data validation the person receiving the inventory can be prompted if the wrong item or quantity is received against an order and it can be addressed immediately instead of at a later date. Now that inventory has been received and put away we can pick in the same manner. A predefined picking order will direct the user to the proper location for the correct item in the correct quantity. This usually relates to a sales order or work order. Again, the relational database allows for immediate correction during the picking process.


Article Source: https://ezinearticles.com/?Data-Collection-Vs-Data-Validation&id=6215578

Friday, 15 September 2017

Various Methods of Data Collection

Professionals in all the business industries widely use research, whether it is education, medical, or manufacturing, etc. In order to perform a thorough research, you need to follow few suitable steps regarding data collection. Data collection services play an important role in performing research. Here data is gathered with appropriate medium.

Types of Data

Research could be divided in two basic techniques of collecting data, namely: Qualitative collection of data and quantitative collection. Qualitative data is descriptive in nature and it does not include statistics or numbers. Quantitative data is numerical and includes a lot of figures and numbers. They are classified depending on the methods of its collection and its characteristics.

Data collected primarily by the researcher without depending on pre-researched data is called primary data. Interviews as well as questionnaires are generally found primary data/information collection techniques. Data collected from other means, other than by the researcher is secondary data. Company surveys and government census are examples of secondary collection of information.

Let us understand in detail the methods of qualitative data collection techniques in research.

Internet Data: Here there is a huge collection of data where one gets a huge amount of information for research. Researchers remember that they depend on reliable sources on the web for precise information.

Books and Guides: This traditional technique is authentically used in today's research.

Observational data: Data is gathered using observational skills. Here the data is collected by visiting the place and noting down details of all that the researcher observes which is needed for essential for his research.

Personal Interviews: Increases authenticity of data as it helps to collect first hand information. It does not serve fruitful when a big number of people are to be interviewed.

Questionnaires: Serves best when questioning a particular class. A questionnaire is prepared by the researcher as per the need of data-collection and forwarded to responders.

Group Discussions: A technique of collecting data where the researcher notes down details of what people in a group has to think. He comes to a conclusion depending on the group discussion that involves debate on topics of research.

Use of experiments: To obtain the complete understanding researchers conduct real experiments in the field used mainly in manufacturing and science. It is used to obtain an in-depth understanding of the researching subject.

Data collection services use many techniques including the above mentioned for collection. These techniques are helpful to the researcher in drawing conceptual and statistical conclusions. In order to obtain precise data researchers combine two or more of the data collection techniques.

Source:http://ezinearticles.com/?Various-Methods-of-Data-Collection&id=5906957