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E-commerce is spreading rapidly, dominating a significant portion of global transactions. Thanks to this rapid growth, there is growing concern regarding information privacy and security. This article discusses basic security processes.

Exponential smoothing techniques are simple, accurate and easy to understand demand forecasting techniques. This article is the second in a series of articles that demonstrate some popular forecasting techniques.

There is a wide variety of forecasting techniques. How do we choose among them? This article introduces the topic and focuses on the mean absolute deviation (MAD) method, providing some numerical examples.

The increased competition and sophistication of consumer demand has forced companies to optimize operations. The company’s agility in response to consumer demand is key to its success, and the ability to predict the demand is critical for effective supply chain management. This article is the first in a series of four articles that outline popular techniques of forecasting demand, designed to meet the needs of both the student and the logistics professional. Purchasesmarte.com also provides some free hands-on utilities for experiencing these techniques.

Regression analysis is a popular and efficient method for forecasting, used in various fields. This article demonstrates some basic types of regression analysis and provides numerical examples.

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Free tools and utilities 
Electronic security
lock Encrypt and decrypt messages
lock ASymmetric encryption / decryption
signature Digital signature and hash

Prediction utilities
sum A moving average forecast generator
forecast An exponential smoothing forecast generator
numbers A weighted linear regression generator

Barcode
BarCode Barcodes generator - 24 barcode types
EAN-13 barcode EAN-13 barcode generator - detailed

Money
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