What (who) is Alpha test - definition

OPERATION IN COMPUTER GRAPHICS

Alpha channel; Alpha blending; Alpha transparency; Alpha-blending; Alpha channels; Alpha composition; Porter-Duff; Alpha Blend; Alpha Blending; Alpha Channel; Premultiplied alpha; Matte channel; Alpha-channel; Alpha matte; Alphamap; Porter duff; Alpha Transparency; Alpha blend compositing

alpha test

¦ noun a trial of machinery or software carried out before a product is made available for beta-testing.

¦ verb (alpha-test) subject to an alpha test.

alpha testing

INVESTIGATION CONDUCTED TO PROVIDE STAKEHOLDERS WITH INFORMATION ABOUT THE QUALITY OF THE SOFTWARE PRODUCT OR SERVICE UNDER TEST AND ENABLE THE BUSINESS TO UNDERSTAND THE RISKS OF SOFTWARE IMPLEMENTATION

Bug testing; Beta testing; Functionality assurance; Alpha testing; Beta Testing; Beta-testing; Greybox testing; Software Q.A.; Software Testing; Test/debugging; Software test; Software tester; Private beta; Functionality Equivalence Verification; Software Tester; Pre-beta; Beta Team; Alpha Testing; Requirement Test Matrix; Positive and negative test cases; Bug test; Application testing; Buddy testing; Beta (software testing); Multivariant testing; Traffic generation tools; Testing open source code; Capture and replay testing; End-to-end testing; End-to-end tests; End-to-end test

<programming> Testing of software at the developer's site by the customer. The stage before beta testing. (1996-05-10)

Alpha (finance)

RISK-ADJUSTED MEASURE OF THE SO-CALLED ACTIVE RETURN ON AN INVESTMENT

Excessive return; Excess return; Alpha coefficient; Alpha (Investment); Alpha risk; Alpha (investment); Trading alpha

Alpha is a measure of the active return on an investment, the performance of that investment compared with a suitable market index. An alpha of 1% means the investment's return on investment over a selected period of time was 1% better than the market during that same period; a negative alpha means the investment underperformed the market.

https://en.wikipedia.org/wiki/Alpha_(finance)

Wikipedia

Alpha compositing

In computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or full transparency. It is often useful to render picture elements (pixels) in separate passes or layers and then combine the resulting 2D images into a single, final image called the composite. Compositing is used extensively in film when combining computer-rendered image elements with live footage. Alpha blending is also used in 2D computer graphics to put rasterized foreground elements over a background.

In order to combine the picture elements of the images correctly, it is necessary to keep an associated matte for each element in addition to its color. This matte layer contains the coverage information—the shape of the geometry being drawn—making it possible to distinguish between parts of the image where something was drawn and parts that are empty.

Although the most basic operation of combining two images is to put one over the other, there are many operations, or blend modes, that are used.

https://en.wikipedia.org/wiki/Alpha compositing