requirements design verification and validation

... Defect testing and debugging are distinct processes Verification and validation is concerned with establishing the existence of defects in a program Debugging is concerned with locating and repairing ... edition Chapter 22 Slide 44 Key points    Verification and validation are not the same thing Verification shows conformance with specification; validation shows that the program meets the customer’s ... tool-based document and code analysis Software testing Concerned with exercising and observing product behaviour (dynamic verification) • The system is executed with test data and its operational...

Ngày tải lên: 14/09/2012, 11:41

... Phân tích yêu cầu phần mềm Verification and Validation “Chúng ta xây dựng hệ thống ?” Khai báo vấn đề thực nắm bắt vấn đề thực tế? ... tính lĩnh vực (Domain properties) thỏa mãn yêu cầu (Requirements) Hai tiêu chuẩn kiểm chứng (validation) Chúng ta xem xét (và hiểu) tất yêu cầu (Requirements) quan trọng? Chúng ta xem xét (và hiểu) ... reviews” E.g preliminary design review (PDR), critical design review (CDR), … Dùng để nêu chắn mà thiết kế báo hiệu Tham gia nhà quản trị nhà bảo trợ (khách hàng) Thường “dog -and- pony show” “Walkthroughs”...

Ngày tải lên: 09/07/2014, 07:20

... -and "dilution" air used to create the desired aerosol concentration and flow Air supplied to the system is controlled at precise flow rates and pressures with electronic and manual valves and ... contributions RST helped design and assemble the NBIES, established and protocols for inhalation exposure studies, helped with calculations, led efforts on the testing and validation of the NBIES, ... interpretation, and co-wrote the manuscript; WAS assisted with the assembly, testing, and validation of the system, and oversaw animal work; DED assisted with program management, invitro virus work, and...

Ngày tải lên: 12/08/2014, 04:20

... doi:10.4271/2003-01-1655 and validation of exhaust muffler This design methodology will help designers in understanding importance of each step of designing in detail from concept level to validation level ... evaluation of muffler concept design for proto type and validation with new approach ii A methodology has been developed for optimum design stages and less cost for muffler design by balancing various ... area and porosity for each muffler concept calculated by using equation (6) and (7) Design outputs Table Design table (output results) Figure CFD concept 0A Below mentioned are few important design...

Ngày tải lên: 16/09/2016, 17:14

... IT ALL TOGETHER: VALIDATION AND SAFETY FACTORS UV reactor validations quantify equipment performance, but contain some inherent and random uncertainty that can be quantified and applied as a ... Journal of Water and Environment Technology, Vol.3, No.1, 2005 Petri, B and Olson, D.A (2002) Bioassay Validation of Computational Disinfection Models Used for UV Reactor Design and Scale-up In: ... necessarily eliminated, and UV systems would be designed and operated safely based on their actual measured performance When the challenge organism is not the same as the target organism and does not have...

Ngày tải lên: 05/09/2013, 09:08

... with M = male and F = female, lesion side with L = left and R = right, and type of stroke with I = ischemic and H = hemorrhagic The descriptive statistics show the mean and the standard deviation ... emotional and/ or cognitive deficits that could interfere with the understanding and execution of the task, such as, for instance, global aphasia, apraxia, dementia and depression patients and controls ... PTM and the study of transfer between physical and virtual tasks two new groups of controls and patients were enrolled 10 control subjects (8 males and females, mean age 28.6 ± 3.6 years) and...

Ngày tải lên: 19/06/2014, 08:20

... the scores of FuglMeyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand Activities" sections), Stroke Impact Scale (Hand function) scores and the mean value of force ... NeuroEngineering and Rehabilitation 2009, 6:38 http://www.jneuroengrehab.com/content/6/1/38 Table 4: Comparison among Fugl-Meyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand ... NeuroEngineering and Rehabilitation 2009, 6:38 http://www.jneuroengrehab.com/content/6/1/38 Table 4: Comparison among Fugl-Meyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand...

Ngày tải lên: 19/06/2014, 08:20

... Get on and off the toilet Reach and get down a five pound object Bend down & pick up clothing from floor Open car doors Open jars which have been opened Turn faucets on and off Run errands and shop ... among candidate items (>.90) An SCI candidate, on the other hand, should be moderate to highly correlated (>.7) with a gold-standard criterion/ proxy measure of the latent construct, and importantly, ... guidance focuses almost solely on the use of factor and item-response analyses as appropriate methods for instrument design and construct validation An inadequate coverage of important alternatives...

Ngày tải lên: 20/06/2014, 16:20

... the scores of FuglMeyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand Activities" sections), Stroke Impact Scale (Hand function) scores and the mean value of force ... NeuroEngineering and Rehabilitation 2009, 6:38 http://www.jneuroengrehab.com/content/6/1/38 Table 4: Comparison among Fugl-Meyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand ... NeuroEngineering and Rehabilitation 2009, 6:38 http://www.jneuroengrehab.com/content/6/1/38 Table 4: Comparison among Fugl-Meyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand...

Ngày tải lên: 11/08/2014, 08:21

... contributions YN performed the computational analyses and the target mRNA cleavage assays, participated in the design of the study, and drafted the manuscript KN and TO performed the viral replication assays ... of Education, Culture, Sports, Science and Technology of Japan (to YN, KU-T, KS, and YT), the Ministry of Health, Labour and Welfare of Japan (to YT), and the Japan Health Sciences Foundation ... cleavage assays, and was Page of (page number not for citation purposes) Retrovirology 2007, 4:80 involved in critically revising the manuscript KS and YT supervised the entire study and wrote the...

Ngày tải lên: 13/08/2014, 05:22

... the design and less than 40% during coding.” [86], “Finding and fixing a software problem after delivery is often 100 times more expensive than finding and fixing it during the requirements and design ... functional requirements, creating high level/module design, coding and testing Among these activities, capturing functional requirements and system design are the main activities which help to understand ... Summary Requirements specification and system design models are the fundamental documents in the software development life cycle They are the major references for understanding user requirements and...

Ngày tải lên: 08/09/2015, 15:30

... referred to the storage space and the bandwidth capacity in servers The bandwidth capacity is determined by the minimum of the I/O bandwidth and the network bandwidth The I/O bandwidth is generally determined ... the bandwidth and the space) only once for every interval and every stream, and therefore past interval-level caching algorithms clearly cannot handle the case of the variable retrieval bandwidth ... Secondly, we design strategies to handle the case of the variable retrieval bandwidth Thirdly, we design a bandwidth management strategy of caching CM data to improve the efficiency of utilizing bandwidth...

Ngày tải lên: 17/09/2015, 17:17

... longitudinal and vertical acceleration experienced by the race car at the center of gravity (CG) during skid pad event 292 2) Acceleration and Brake Test Graph 75-Longitudinal, associated lateral and ... acceleration and brake test 293 Graph 76-Longitudinal, associated lateral and vertical acceleration experienced by the front right unsprung mass of the race car during acceleration and brake test ... associated lateral and vertical acceleration experienced by the rear left unsprung mass of the race car during acceleration and brake test 295 Graph 78-Longitudinal, associated lateral and vertical...

Ngày tải lên: 12/10/2015, 17:36

... stiffness (STS) of chassis 10 with respect to variation of height of rear bulkhead 229 Appendices - Design & Analysis of Chassis – Orientation of Brace 1) Chassis 11 24.80 Weight of Chassis vs Brace ... 23 248 Figure 173-Investigation of driver ergonomics requirement of chassis 23 249 Appendices - Design & Analysis of Chassis – Cross Section of Structural Element 1) Chassis 24 Weight of Chassis...

Ngày tải lên: 12/10/2015, 17:36

... architecture Design patterns help you architect and design simple, elegant, extensible, and easily maintainable applications that users are demanding If you have questions on using design patterns, ... 66 Design Pattern Framework™ 2.0 Service Oriented Architecture (SOA) Design Patterns: The Patterns in Action 2.0 reference application introduces and new group of design patterns, namely design ... reserved Page 54 of 66 Design Pattern Framework™ 2.0 The Java world was earlier in accepting and embracing the concept of Design Patterns and they got a head start However, with more and more developers...

Ngày tải lên: 29/09/2013, 17:20

... on the DVD included with the book: Designs—First Edition and Designs—Third Edition The 50 templates in the Designs—First Edition folder are XHTML-based and designed for 800 Â 600 resolution with ... design used for this chapter is design 57 (see Figure 19.1) Customize images and colors in the Photoshop file(s) Optimize and save necessary images that will be used by precoded XHTML, CSS, and ... Photoshop File After copying the files from the DVD and pasting them into a directory, the designer needs to locate and open the main design file (design_ 57.psd) in Photoshop (see Figure 19.2) Note...

Ngày tải lên: 17/10/2013, 23:15

... 38 Activity 5.4: Logical Design Verification Exercise 1: Refining and Verifying the Business Object Model ! Refine and verify the business object model Consider the business ... model created in the previous activities As a class, brainstorm methods of verifying and refining the logical design The instructor will write your answers on a flip chart ...

Ngày tải lên: 10/12/2013, 16:16

... product defects and process/system malfunctions early, and hence, eliminate costly consequences They also help to diagnose the root causes of the problems in design and production and hence minimize ... function defined over {t, f, u} (t represents true, f represents false, and u stands for uncertain) Let mg = {Li: li} and mg′ = {Mi: mi} and form a matrix {( } ) ( M = T Li / M j : li m j , where T Li ... functions and conditional mass functions using Equations 14.10 and 14.14 Finally, the fuzzy transition probability and limiting fuzzy transition probability can be calculated using Equations 14.42 and...

Ngày tải lên: 13/12/2013, 01:15

... technical requirements such as dimensions, tolerances and surface roughness, the feature position and orientation, and the feature relations (formed by physical interactions and dimensions and geometric ... [1995], and Zhao and Baines [1996 (b)] © 2001 by CRC Press LLC Time Dependence Process planning is time-dependent and dynamic [Larsen, 1991, 1993] Due to the fact that materials and manufacturing requirements ... product design to shop floor manufacturing On the one hand, it has to provide multiple decisions and alternative information transfer from design to various manufacturing functions On the other hand...

Ngày tải lên: 13/12/2013, 01:15

... parts feeding systems and dedicated joining devices; and • assembly stand, namely, a workstation with piece placing and parts feeding fixtures, pick-andplace mechanisms, and joining units For ... marketing, design, manufacturing, and finance systems To reach more comprehensive assessments, issues are stated by collecting and comparing properly standardised indices and by tracking and acknowledging ... of functional units and combining the related assembly stands; these are equipped with the usual parts feeding and orienting devices and sometimes include positioning and handling equipment The...

Ngày tải lên: 13/12/2013, 01:15