軟件工程英文教學(xué)課件：Ch15 Review Techniques

1、1Chapter 15Review TechniquesSoftware Engineering: A Practitioners Approach, 7/e by Roger S. Pressman2What Are Reviews?Software reviews are a “filter” for the software process. Reviews are applied at various points during software engineering and serve to uncover errors and defects that can then be r

2、emoved.3Defect Amplification(缺陷擴(kuò)散)A defect amplification model IBM81 can be used to illustrate the generation and detection of errors during the design and code generation actions of a software process. Errors passed throughAmplified errors 1:xNewly generated errorsDevelopment stepErrors fromPreviou

3、s stepErrors passed To next stepDefectsDetectionPercentEfficiency4Defect Amplification-ExampleLeft: without the reviews in the design process.Right: with the reviews in all steps. 5Cost Effectiveness of ReviewsEffort expended with and without reviewswith reviews6Formal Technical Reviews（1）評審以一種正式的形式

4、進(jìn)行。如：有正式的、事先定義好的有關(guān)職責(zé)的各種角色，并遵循組織規(guī)定的標(biāo)準(zhǔn)流程。（2）對于任何工作產(chǎn)品的評審，都會(huì)組建與之對應(yīng)的專門評審組，包括主持人、記錄員、評審員和開發(fā)者。（3）評審組先召開預(yù)備會(huì)，開發(fā)者先針對產(chǎn)品向大家做總體介紹，例如：講解本產(chǎn)品的目標(biāo)、實(shí)現(xiàn)細(xì)節(jié)、開發(fā)標(biāo)準(zhǔn)等。（4）在預(yù)備會(huì)和正式評審會(huì)之間，評審組成員會(huì)對產(chǎn)品進(jìn)行檢查，并依據(jù)相關(guān)標(biāo)準(zhǔn)和準(zhǔn)則評審產(chǎn)品。（5）在預(yù)定時(shí)間，評審組成員以會(huì)議形式聚在一起，依次對產(chǎn)品進(jìn)行檢查，主持人負(fù)責(zé)控制會(huì)議的進(jìn)展，記錄員負(fù)責(zé)記錄整個(gè)評審過程。（6）在產(chǎn)品中發(fā)現(xiàn)的每一個(gè)缺陷都會(huì)被記錄下來，并被適當(dāng)分類。7The Review Meetingrevie

5、wleaderproducerrecorderreviewerstandards bearer (SQA)maintenance oracleuser rep8Informal Reviews(非正式評審)Informal reviews include:a simple desk check of a software engineering work product with a colleaguea casual meeting(臨時(shí)會(huì)議) for the purpose of reviewing a work productpair programming encourages con

6、tinuous review as a work product (design or code) is created. The benefit is immediate discovery of errors and better work product quality as a consequence.9Review Reporting and RecordAt the end of the review meeting，a review issues list is produced. In addition, a formal review summary report is completed.The review issues list serves two purposes: 1) to identify problem areas within the product. 2) to serve as an action item checklist that guides the producer as corrections are made. The review summary report ans