1746-IM8/1746-IM8 A
1746-IM8/1746-IM8 AB
這四類工具有兩個(gè)特色:一是它們相互之間可以進(jìn)行數(shù)據(jù)互聯(lián),幫助管理人員從不同角度監(jiān)督研制過程;二是工具支持文檔自動(dòng)生成,項(xiàng)目組人員只需要按照GJB438B模板,填寫部分軟件研制過程的信息,即可輸出標(biāo)準(zhǔn)化的文檔。
盡管具有功能強(qiáng)大的工具,但是在初期實(shí)踐階段,由于丁具普及的程度參差不一,我們先使用KCFLOW配置管理工具,先由組織級(jí)配置管理員負(fù)責(zé)使用,然后逐步對(duì)項(xiàng)目級(jí)配置管理員以及項(xiàng)目相關(guān)成員進(jìn)行推廣。在這個(gè)過程中,項(xiàng)目組成員需要不斷的實(shí)踐,逐步提高勞動(dòng)效率。
2 嵌入式軟件可靠性的提高
2.1 嵌入式軟件可靠性
軟件工程化的核心是為了實(shí)現(xiàn)好的軟件,而評(píng)價(jià)軟件好壞的關(guān)鍵標(biāo)準(zhǔn)是軟件可靠性。軟件可靠性(Software Reliability)指的是在給定時(shí)間和特定環(huán)境要求下,軟件完成規(guī)定功能的能力。針對(duì)在雷達(dá)系統(tǒng)中使用的嵌入式軟件中,可靠性指標(biāo)一般隸屬于分系統(tǒng)或整機(jī)的指標(biāo),即在初始系統(tǒng)正常的條件下,在規(guī)定時(shí)間內(nèi),軟件不引起系統(tǒng)故障的能力。
由于嵌入式軟件與硬件結(jié)合相當(dāng)緊密,其可靠性指標(biāo)具有很大的隨機(jī)性,如外界環(huán)境變化、系統(tǒng)輸入出錯(cuò)、使用不當(dāng)以及軟硬件設(shè)計(jì)的固有缺陷等原因都會(huì)導(dǎo)致軟件可靠性指標(biāo)降低,但是不能因?yàn)檫@些困難,使得嵌入式軟件可靠性的保證成為空談。軟件可靠性是可以通過軟件工程化的實(shí)踐來提高。
1746-IM8/1746-IM8 AB
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