What does EVT, DVT, pvt mean? Manufacturing Engineering Management

A few days before the meeting, the customer said a few nouns, what evb,evt,dvt, Leng do not understand, after their own online search, in this slightly

Finishing, record memo.

BVT is build verification test, basic validation testing, compiling and connecting to the completed code, creating a construct,

To check whether the main function of the program will work as expected.

DVT is the abbreviation of design verification test, which is an indispensable testing link in hardware production.

Including mold testing, electronic performance, appearance testing and so on.

Pvt is all known as process verification test, which means small batch process verification testing, a hardware test, the main validation

The realization of each function of the new model and the test of stability and reliability

Evt-engineer Verification Test, engineering sample verification testing

Reference: http://blog.163.com/ymguan@yeah/blog/static/140072872201252395615937/

PLM (Product lifecycle Management) SYSTEM:PLM assists in the successful completion of product development (Npi:new product Introduction), as well as the delivery of related engineering and technical execution operations in the amount of postpartum Large to five phases planning (product conception phase), EVT (engineering validation and testing phase), DVT (design validation and testing phase), PVT (production verification and testing phase), MP (mass production phase).

EVT (Engineering Verification Test) Engineering verification testing phase

Design validation at the beginning of the product development. Many products have just been designed for engineering samples, a lot of problems need to be a possible design problems corrected, focusing on the design integrity, whether there is any omission of specifications. Including functional and safety testing, generally by RD to complete the sample test, because the sample, the problem may be more, the test may be done n times.

DVT (Design Verification test test) verification testing phase

This is the 2nd phase of the research and development, all the design has been completed, the focus is to identify design problems to ensure that all the design is in line with specifications. Validated by Rd and DQA (Design Quality assurance). At this time the product basic stereotypes.

DMT (Design maturity test) maturity Verification

Can be performed at the same time as DVT, test the MTBF of the product at the main limit (Mean time Between failure), HALT (High Accelerated Life Test) & HASS (High accelerated Stress screen) is an effective way to test the potential defects of a product.

MVT (mass-production verification test) Mass production verification test

Verify the mass consistency of the product in mass production, verified by DQA.

PVT (production/process verification test) production/process verification testing phase

This phase of the product design to complete, all design validation will be completed, and finally only to do the amount of prenatal verification, to determine the factory has the means to follow the standard operating procedures to make the original design of the product.

MP (Mass Production) mass production

After all of the above testing phase, the factory can be the design of a large number of production, theoretically to enter the mass production phase, all design and production should not be any omission and error, become the official market products.

The following references: http://www.researchmfg.com/2010/07/evt-dvt-pvt/

Evt:engineering Verification Test (Engineering verification testing phase)

In general this stage produced samples only circuit board, but also is the kind of big piece of board, we usually call it "large Board", research and development engineers will usually first he wanted to verify the idea or can not determine the design of the board above. So this design is usually the engineering validation (verification) of the Hardware circuit, debugging (Debug), you may find it difficult to imagine the circuit board will become a lightweight mobile phone or product.

Generally speaking, if the product developed is a new platform, the first time when the design, the problem is usually many, some even just experimental nature, research and development engineers may not have a bottom, in the end to take what kind of feasible design plan. So there may be several times of evt trial production, depending on the status of Research and development, the focus is to have enough time and samples to allow research and development engineers to verify their ideas, there is a point to remind, each sample trial production is a small amount of cost, can use a evt to solve the words do not do the first two times evt.

If the design is to modify the existing product design, it will be relatively simple, because there will not be too many new technologies, also do not need too much evt trial production, and sometimes even directly skip evt and into the next stage.

EVT's focus: All possible design problems must be presented to one by one revisions, so focus is on considering the feasibility of the design and checking if any specifications have been omitted.

Dvt:design Verification Test (Design verification testing phase)

This is the second phase of research and development, and all designs should have been completed. This time will be the body of the shell Plus, the other circuit board to achieve the actual size, so you can put the whole circuit board into the body shell.

The body shell of this phase may start with a large resin with a laser engraving of the sample (mockup), or the products produced by the soft mold, the purpose is to hope that the mold contract before the real production, used to verify the design of the body shell meets the needs, because the real mold cost is very expensive, So you have to verify before you can open the mold.

This phase to verify the function of the machine, the focus is on the design and manufacturing problems to find out to ensure that all the design is in line with specifications, and can be produced.

Pvt:production Verification Test (production verification testing phase)

This phase of the product design should have been completed, all design verification must come to an end. The purpose of this phase of trial production is to do a lot of manufacturing process before the test, so must produce a certain number of products, and all production procedures should be in line with the manufacturer's standard procedures.

Also calculate whether all the tools, test fixtures and the number of production equipment can meet the mass postpartum capacity (capacity).