CREATE TABLE table_38277 ("Name" TEXT, "Creator" TEXT, "Platform / OS" TEXT, "First public release" TEXT, "Latest stable release" TEXT, "Open source" TEXT, "Programming language used" TEXT)

Which Platform / OS has a Name of altova umodel?
SELECT "Platform / OS" FROM table_38277 WHERE "Name" = 'altova umodel'
SELECT "Platform / OS" FROM "table_38277" WHERE "Name" = 'altova umodel'