00398nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000240010410000210012824500710014926000320022020803UR20220427165015.0061103|||||||||||||||||||||||||||||||| d  a(janium) 20792  a(janium)20791 4aQA76.758b.W57 19931 aWitt, Bernard I.10aSoftware architecture and designb : principles models and methods  bVan Nostrand Reinholdc1993